特任教授・連携マネージャー　清⽔ 洋

先端科学技術研究科 物質創成科学領域　特任教授

• 光情報分子科学研究室(教授　　河合　壯　先生)

NAIST ナノテクノロジープラットフォーム　連携マネージャー

研究概要

液晶性を利用したナノスケール分子秩序構築 分子形状互変異性に基づく新規な液晶性化合物
ー液晶の新たな機能を求めてー

2018

1. Ken Watanabe, Koichi Watanabe, Norimitsu Tohnai, Hiromichi Itani, Yo Shimizu, Akihiko Fujii and Masanori Ozaki, "Ambipolar carrier transport properties and molecular packing structure of octahexyl-substituted copper phthalocyanine", Jpn. J. Appl. Phys., 2018, 57, 04FL01-1-4.
2. Yuya Nakata, Toshiki Usui, Yuki Nishikawa, Fabien Nekelson, Yo Shimizu, Akihiko Fujii*, and Masanori Ozaki, "Sandwich-cell-type bulk-heterojunction organic solar cells utilizing liquid crystalline phthalocyanine", Jpn. J. Appl. Phys., 2018, 57, 03EJ03-1-03EJ03-5.

2017

1. Akihiko Fujii, Hiromichi Itani, Koichi Watanabe, Quang-Duy Dao, Lydia Sosa-Vargas, Yo Shimizu and Masanori Ozaki, "Improved synthesis of non-peripherally alkyl-substituted tetrabenzo triazaporphyrins", Mol. Cryt. Liq. Cryst., 2017, 653, 22-26.
2. Hirosato Monobe, Lingling An, Ping Hu, Bi-Qing Wang, Ke-Qing Zhao and Yo Shimizu, "Charge transport property of asymmetric Alkyl-BTBT LC semiconductor possessing a fluorophenyl group", Mol. Cryt. Liq. Cryst., 2017, 647, 119-126.
3. Dai Nakagawa, Chika Nakano, Masashi Ohmori, Hiromichi Itani, Yo Shimizu, Akihiko Fujii and Masanori Ozaki, "Miscibility and carrier transport properties in binary blend system of non-peripherally octa-hexyl-substituted phthalocyanine analogues", Org. Electron., 2017, 44, 67-73.
4. Masashi Ohmori, Chika Nakano, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Selective crystal growth of polymorphs and crystal-to-crystal thermal phase transition of non-peripherally alkyl-substituted phthalocyanine and tetrabenzo- triazaporphyrin", J. Cryst. Growth, 2017, 468, 804-809.
5. Toshiki Usui, Yuya Nakata, Gilles De Romeo Banoukepa, Kento Fujita, Yuki Nishikawa, Yo Shimizu, Akihiko Fujii and Masanori Ozaki, "Glass-sandwich- type organic solar cells utilizing liquid crystalline phthalocyanine", Appl. Phys. Express, 2017, 10, 021602-1-021602-4.

2016

1. Akihiko Fujii, Shohei Nakano, Hitoshi Fukui, Takashi Saito, Masashi Ohmori, Yo Shimizu and Masanori Ozaki, "Ambipolar Carrier Mobility in Binary Blend Thin Film of Non-Peripheral Alkylphthalocyanines", J. Phys. Conf. Ser., 2016, 704, 012006.
2. Hiroyuki Suzuki, Kouki Kawano, Kazuchika Ohta, Yo Shimizu, Nagao Kobayashi and Mutsumi Kimura, "Topological Control of Columnar Stacking Made of Liquid-Crystalline Thiophene-Fused Metallonaphthalocyanines", Chemistry Open, 2016, 5, 150-156. DOI: 10.1002/open.201500205

2015

1. Quang-Duy Dao, Lydia Sosa-Vargas, Takuya Higashi, Masashi Ohmori, Hiromichi Itani, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Efficiency enhancement in solution processed small-molecule based organic solar cells utilizing various phthalocyanine-tetrabenzoporphyrin hybrid macrocycles", Org. Electron., 2015, 23, 44-52.
2. Hirosato Monobe*, Masaomi Kimoto and Yo Shimizu, "Solution-processed organic field effect transistor using a liquid crystalline semiconductor, 8TNAT8", Mol. Cryst. Liq. Cryst., 2015, 613, 88-93.
3. Quang-Duy Dao, Takeshi Uno, Masashi Ohmori, Kenji Watanabe, Hiromichi Itani, Akihiko Fujii,* Yo Shimizu and Masanori Ozaki, "Effects of thermal-annealing and processing-additive treatment on crystallization-induced phase separation in organic solar cells utilizing octapentyl tetrabenzotriaza- porphyrins", J. Phys. D: Appl. Phys. 2015, 48, 385103-1-385103-5.
4. Ke-Qing Zhao*, Ling-Ling An, Xiao-Bo Zhang, Wen-Hao Yu, Ping Hu, Bi-Qin Wang, Jing Xu, Qing-Dao Zeng*, Hirosato Monobe, Yo Shimizu*, Benoît Heinrich and Bertand Donnio*, "Highly segregated lamello-columnar mesophase organizations and fast charge carrier mobility in new discotic donor-acceptor triads", Chem. Eur. J., 2015, 21, 10379-10390. DOI: 10,1002/chem.201500889, Hot Paper.
5. Gilles De Roméo Banoukepa, Akihiko Fujii*, Yo Shimizu and Masanori Ozaki, "1,3,5-Tris(phenyl-2-benzimidazole)-benzene cathode buffer layer thickness dependence in solution-processable organic solar cell based on 1,4,8,11,15,18,22,25- octahexylphthalocyanine",, Jpn. J. Appl. Phys., 2015, 54, 04DK11-1-04DK11-5.
6. Lydia Sosa-Vargas, Fabien Nekelson, Daiju Okuda, Minokazu Takahashi, Yukimasa Matsuda, Quang-Duy Dao, Hiroyuki Yoshida, Akihiko Fujii, Masanori Ozaki and Yo Shimizu*, "Liquid crystalline and charge transport properties of novel non-peripherally octasubstituted perfluoroalkylated phthalocyanines", J. Mater. Chem. C, 2015, 3, 1757-1765. DOI: 10.1039/C4TC02557A
7. Xiang Feng , Lydia Sosa-Vargas , S. Umadevi , Taizo Mori , Yo Shimizu , and Torsten Hegmann*, "Discotic Liquid Crystal-Functionalized Gold Nanorods: 2- and 3D Self-Assembly and Macroscopic Alignment as well as Increased Charge Carrier Mobility in Hexagonal Columnar Liquid Crystal Hosts Affected by Molecular Packing and π-π Interactions", Adv. Funct. Mater., 2015, 25, 1180-1192. DOI: 10.1002/adfm.201401844
8. Masahiro Fujiwara*, Kumi Shiokawa, Hirosato Monobe and Yo Shimizu, "Temperature Control of Light Transmission Using Mixed System of Silica Hollow Particles with Nanoparticle Shell and Organic Components", ACS Appl. Mater. Interface, 2015, 7, 1107-1113.

2014

1. Quang-Duy Dao, Koichi Watanabe, Hiromichi Itani, Lydia Sosa-Vargas, Akihiko Fujii*, Yo Shimizu and Masanori Ozaki, "Octahexyltetrabenzotriaza- porphyrin: A Discotic Liquid Crystalline Donor for High-performance Small-molecule Solar Cells", Chem. Lett., 2014, 43, 1761-1763.
2. Daisuke Tanaka, Hisato Ishiguro, Tatsuya Shirasu, Daiju Okuda, Kingo Uchida* and Yo Shimizu*, "A novel photonic LC material combined with rod-like azobenzenes and a disc-shaped triphenylene", Mol. Cryst. Liq. Cryst., 2014,594, 105-111.
3. Makoto Yoneya*, Takayoshi Makabe, Ayano Miyamoto, Yo Shimizu, Yasuo Miyake, Hiroyuki Yoshida, Akihiko Fujii and Masanori Ozaki, "Tilt orientationally disordered hexagonal columnar phase of phthalocyanine discotic liquid crystals", Phys. Rev. E, 2014, 89, 062505-1- 062505-8.
4. Hitoshi Fukui, Shohei Nakano, Takashi Uno, Quang-Duy Dao, Takashi Saito , Akihiko Fujii*, Yo Shimizu, Masanori Ozaki, "Miscibility in binary blends of non-peripheral alkylphthalocyanines and their application for bulk- heterojunction solar cells", Org. Electron., 2014, 15, 1189-1196.
5. Gilles De Romeo Banoukepa, Tetsuya Masuda, Akihiko Fujii*, Yo Shimizu, and Masanori Ozaki, "Thermal annealing effects on non-peripheral octahexylphthalo- cyanine doped polymer bulk heterojunction solar cells", Jpn. J. Appl. Phys., 2014, 53, 05FZ06-1-05FZ06-4.
6. Quang-Duy Dao, Taishi Kumada, Hitoshi Fukui, Masashi Ohmori, Akihiko Fujii*, Yo Shimizu, and Masanori Ozaki, "Blend ratio dependence of photovoltaic properties in octahexylphthalocyanine-based small molecule solar cell", Jpn. J. Appl. Phys., 2014, 53, 05FZ05-1-05FZ05-4.
7. Naoyuki Yamasaki, Takashi Saito, Jaeki Kim, Hiroyuki Yoshida, Akihiko Fujii*, Yo Shimizu and Masanori Ozaki, "Monodomain planner alignment of 1, 4, 8, 11, 15, 18, 22, 25-octahexylphthalocyanine by melt growth method", Thin Solid Films, 2014, 554, 99-101.
8. Masashi Ohmori, Hitoshi Fukui, Quang-Duy Dao, Taishi Kumada, Akihiko Fujii*, Yo Shimizu, and Masanori Ozaki, "Annealing effect in bulk heterojunction organic solar cells utilizing liquid crystalline phthalocyanine", Jpn. J. Appl. Phys., 2014, 53, 05FZ02-1-05FZ02-4.
9. Yo Shimizu*, Yukimasa Matsuda, Takaya Nakao, Lydia Sosa-Vargas, Minokazu Takahashi, Hiroyuki Yoshida, Akihiko Fujii and Masanori Ozaki, "Miscibility and Phase Separation in LC Semiconductor Blends", Proc. SPIE, 2014, 9004, 900408-1- 900408-8.
10. Hirosato Monobe* and Yo Shimizu, "Carrier transport and viscosity of discotic liquid-crystalline photoconductor hexaoctylthiotriphenylene", Jpn. J. Appl. Phys., 2014, 53, 01AE06-1-4.

2013

1. Kaoru Fukumura, Tetsuro Hori, Tetsuya Masuda, Dao Quang Duy, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Solvent effect on solution-processable bulk heterojunction organic solar cells utilizing 1,4,8,11,15,18,22,25-octahexylphthalo- cyanine", Jpn. J. Appl. Phys., 2013, 52, 05DB02-1-05DB02-5.
2. Kazukuni Tahara, Yuki Yamamoto, Dustin E. Gross, Hiroyoshi Kozuma, Yoko Arikuma, Koji Ohta, Yoshiko Koizumi, Yuan Gao, Yo Shimizu,* Shu Seki,* Kenji Kamada,* Jeffrey S. Moore,* and Yoshio Tobe*, "Synthesis and Properties of Graphyne Fragments: Trigonally Expanded Dehydrobenzo[12]annulenes", Chem. Eur. J., 2013, 19, 11251-11260.
3. Jaeki Kim, Naoyuki Yamasaki, Takeshi Hayashi, Hiroyuki Yoshida, Hiroshi Moritake, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "High-Quality Planar Alignment of Discotic Liquid Crystals Using Oscillating Shear", Appl. Phys. Express, 2013, 6, 061702-1-061702-3.
4. Quang-Duy Dao, Tetsuro Hori, Kaoru Fukumura, Tetauya Masuda, Toshiya Kamikado, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Effects of processing additievs on nanoscale phase separation, crystallization and photovoltaic performance of solar cells based on mesogenic phthalocyanine", Org. Electron., 2013, 14, 2628-2634.
5. Quang-Duy Dao, Hitoshi Fukui, Sun Hwan Lee, Masashi Ohmori, Taishi Kumada, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Improvement of photovoltaic performance of octahexylphthalocyanine-based bulk-heterojunction solar cells using various fullerene derivatives", Trans. Mat. Res. Soc. Jpn., 2013, 38, 463-466.
6. Quang-Duy Dao, Takashi Saito, Shohei Nakano, Hitoshi Fukui, Toshiya Kamikado, Akihiko Fujii*, Yo Shimizu and Masanori Ozaki, "Alkyl Substituent Length Dependence of Octaalkylphthalocyanine Bulk", Appl. Phys. Express, 2013, 6, 122301-1-122301-4.

2012

1. Tetsuro Hori, Tetsuya Masuda, Naoki Fukuoka, Takeshi Hayashi, Yasuo Miyake, Toshiya Kamikado, Hiroyuki Yoshida, Akihiko Fujii, Yo Shimizu, and Masanori Ozaki, "Non-peripheral octahexylphthalocyanine doping effects in bulk heterojunction polymer solar cells", Org. Electron., 2012, 13, 335-340.
2. Tetsuya Masuda, Tetsuro Hori, Kaoru Fukumura, Yasuo Miyake, Dao Quang Duy, Takeshi Hayashi, Toshiya Kamikado, Hiroyuki Yoshida, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Photovoltaic Properties of 1,4,8,11,15,18,22,25- Octaalkylphthalocyanine Doped Polymer Bulk Heterojunction Solar Cells", Jpn. J. Appl. Phys., 2012, 51, 02BK15-1-4.
3. Tetsuro Hori, Yasuo Miyake, Tetsuya Masuda, Takeshi Hayashi, Kaoru Fukumura, Hiroyuki Yoshida, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Dependence of alkyl-substituent length for bulk heterojunction solar cells utilizing 1,4,8,11,15,18,22,25-octaalkylphthalocyanine", J. Photon. Energy, 2012, 2, 021004-1-7.
4. Yo Shimizu, Yukimasa Matsuda, Fabien Nekelson, Yasuo Miyake, Hiroyuki Yoshida, Akihiko Fujii and Masanori Ozaki, "Binary systems of discotic liquid crystalline semiconductors toward solution-processing thin film devices"(invited paper), Proc. SPIE, 2012, 8279, 82790G-1- 82790G-8. Invited paper
5. Fabián Vaca Chávez, Pedro J. Sebastião, Yasuo Miyake, Hirosato Monobe and Yo Shimizu, "Dynamics of discotic fluoroalkylated triphenylene molecules studied by proton NMR relaxometry", J. Phys. Chem. C, 2012, 116, 2339-2346.

2011

1. Yasuo Miyake, Youyu Shiraiwa, Keizo Okada, Hirosato Monobe, Tetsuro Hori, Naoyuki Yamasaki, Hiroyuki Yoshida, Michael J. Cook, Akihiko Fujii, Masanori Ozaki and Yo Shimizu, "High carrier mobility up to 1.4 cm2 V-1 s-1 in Non-peripheral octahexylphthalocyanine", Appl. Phys. Express, 2011, 4, 021604-1- 021604-3.
2. Yasuo Miyake, Tetsuro Hori, Hiroyuki Yoshida, Hirosato Monobe, Akihiko Fujii, Masanori Ozaki and Yo Shimizu, "Liquid crystalline phthalocyanines as a self-assembling organic semiconductor for solution-processing thin film devices", Proc. SPIE, 2011, 7955, 795505-1~ 795505-8. Invited paper.
3. Ke-Qing Zhao, Chao Chen, Hirosato Monobe, Ping Hu, Bin-Qin Wang and Yo Shimizu, "Three-Chain Truxene Discotic Liquid Crystal Showing High Charged Carrier Mobility", Chem. Commun., 2011, 47, 6290-6292.
4. Ke-Qing Zhao, J. Z. Guo, W. H. Yu, L. Wang, Pin Hu, Bin- Qing Wang, Hirosato Monobe and Yo Shimizu, "Synthesis and mesomorphism of asymmetric triphenylene discotic liquid crystals bearing with mono-amido-based alkyl soft chains", Mol. Cryst. Liq. Cryst., 2011, 542, 37-47.
5. Hironobu Hayashi, Wataru Nihashi, Tomokazu Umeyama, Yoshihiro Matano, Shu Seki, Yo Shimizu and Hiroshi Imahori, "Segregated donor-acceptor columns in liquid crystals that exhibit highly efficient ambipolar charge transport", J. Am. Chem. Soc., 2011, 133, 10736-10739.
6. Hirosato Monobe and Yo Shimizu, "Anisotropic photoconduction of triphenylene-　based DLC in aligned domains by wavelength tunable CO2 laser irradiation", Mol Cryst. Liq. Cryst., 2011, 542, 151-157.
7. Hirosato Monobe, C. Chen, Ke-Qing Zhao, Pin Hu, Yasuo Miyake, Akihiko Fujii, Masanori Ozaki and Yo Shimizu, "Bipolar carrier transport in tri-substituted octyloxytruxene DLC", Mol Cryst. Liq. Cryst., 2011, 545, 149-155.
8. Ke-Qing Zhao, Hui Zhou, Wen-Hao Yu, Ping Hu, Bi-Qin Wang, Hirosato Monobe and Yo Shimizu, Sci. China Chem., 2011, 54, 1576-1583.
9. Tetsuro Hori, Naoki Fukuoka, Tetsuya Masuda, Yasuo Miyake, Hiroyuki Yoshida, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Bulk heterojunction organic solar cells utilizing 1,4,8,11,15,18,22,25-octahexylphthalocyanine", Solar Energy Mater. Solar Cells, 2011, 95, 3087-3092.
10. Yasuo Miyake, Hiroyuki Yoshida, Hirosato Monobe, Michael J. Cook, Akihiko Fujii, Masanori Ozaki and Yo Shimizu, "A Possibility of 2-Dimensional Transport of Charged Carriers in Columnar Phases of Liquid Crystalline Semiconductors", Mol Cryst. Liq. Cryst., 2011, 549, 127- 132.
11. Jean-Moïse Suisse, Hiroyuki Mori, Hirosato Monobe, Shoichi Kutsumizu and Yo Shimizu, "Charged Carrier Mobility in the Cubic (Ia3d) Mesophase of 1,2-Bis(4'- n-nonyloxybenzoyl)hydrazine (BABH-9)", Soft Matter., 2011, 7, 11086-11088.

2010

1. S. K. Varshney, Hirosato Monobe, Yo Shimizu, Hideo Takezoe and Viena Prasad, "Non-symmetrical discotic liquid crystalline dimmers: molecular design, synthesis and mesomorphic properties", Liq. Cryst., 2010, 37, 607-615.
2. Tetsuro Hori, Yasuo Miyake, Naoyuki Yamasaki, Hiroyuki Yoshida, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Solution processable organic solar cell based on bulk heterojunction utilizing phthalocyanine derivative", Appl. Phys. Express, 2010, 3, 101602-1-101602-3.
3. Takuya Ohzono, Hirosato Monobe, K. Shiokawa, Masahiro Fujiwara and Yo Shimizu, "Shaping liquid on a micrometre scale using microwrinkles as deformableopen channel capillaries", Small, 2010, 7, 4658-4664.
4. Yasuyuki Sasada, Hirosato Monobe, Yasukiyo Ueda and Yo Shimizu, "Drastic change of mesomorphism induced by the fluorination of peripherally attached phenyl groups in triphenylene mesogens", Mol. Cryst. Liq. Cryst., 2010, 525, 153-157.
5. Yasuo Miyake, Ping Hu, Ke-Qing Zhao, Hirosato Monobe, Akihiko Fujii, Masanori Ozaki and Yo Shimizu, "Carrier mobility behavior of triphenylene mesogen with a hydrogen bonding amide group", Mol. Cryst. Liq. Cryst., 2010, 525, 97-103.
6. Hirosato Monobe and Yo Shimizu, "Alignment Change of Discotic Liquid Crystal Domains with Wavelength Tunable CO2 Laser Irradiation", Key Eng. Mater., 2010, 428-429, 284-287.
7. Hirosato Monobe, Shuichi Okamoto, Hirosaki Enomoto and Yo Shimizu, "Carrier Transport and Viscosity of Discotic Liquid Crystalline Photoconductor Hexaoctyloxytriphenylene", Jpn. J. Appl. Phys., 2010, 49, 01AF04.
8. Yasuo Miyake, Akihiko Fujii, Masanori Ozaki and Yo Shimizu, "Charged carrier mobility study on Colh msophase of perfluoroalkylated triphenylene derivatives ", Mol. Cryst. Liq. Cryst., 2010, 516, 246-252.
9. Yo Shimizu, Yasuo Miyake, Akihiko Fujii, Masanori Ozaki, Jean-Moïse Suisse and Laurent Douce, "Fast carrier mobility in smectic A phase of a liquid crystalline compound containing an Imidazolium salts", Mol. Cryst. Liq. Cryst., 2010, 516, 240-245.

2009

1. Kazuki Tokuoka, Hiroyuki Yoshida, Yasuo Miyake, Chee Heng Lee, Yusuke Miura, Satoshi Suzuki, Akihiko Fujii, Yo Shimizu and Masanori Ozaki, "Planar alignment of columnar liquid crystals in microgroove structures", Mol. Cryst. Liq. Cryst., 2009, 510, 126-133.
2. 三宅康雄、物部浩逹、胡　平、趙　可清、藤井彰彦、尾崎雅則、清水　洋、「特異的分子間相互作用を有するディスコチック液晶性有機半導体のカラムナー相におけるキャリヤ輸送特性」、電気材料技術雑誌、2009, 18, 67-73.
3. Stuart J. Mahoney, Mohamed M. Ahmida, Himadli Kayal, Nicolas Fox, Yo Shimizu and S. Holger Eichhorn, "Synthesis, mesomorphism and electronic properties of nonaflate and cyano substituted pentyloxy and 3-methylbutyloxy triphenylenes", J. Mater. Chem., 2009, 19, 9221-9232.
4. Takuya Ohzono, Hirosato Monobe, Kumi Shiokawa, Masahiro Fujiwara and Yo Shimizu, "Shaping liquid on a micrometre scale using microwrinkles as deformable open channel capillaries" Soft Matter, 2009, 5, 4658-4664.
5. Takuya Ohzono, Hirosato Monobe and Yo Shimizu, "Anchoring of Liquid Crystals on Self-Organized Microwrinkles" IEICE Trans. Electron., 2009, E92-C, 1362-1365.
6. Hirosato Monobe, Kunio Awazu and Yo Shimizu, "Alignment change of hexahexylthiotriphenylene in the helical columnar phase by infrared laser irradiation", Thin Solid Films, 2009, 518, 762-766.
7. Takuya Ohzono, Hirosato Monobe and Yo Shimizu, "Self-Organized Microwrinkles for Liquid Crystal Alignment", Proc. IDW09', 2009, LCT4-3.
8. Yo Shimizu, Hirosato Monobe, Benoît Heinrich, Daniel Guillon, Kazuma Oikawa and Ken-ichi Nakayama, "Mesophase Semiconductors : The Alignment Control and Self-Assembling Nature for Transistor Applications", Mol. Cryst. Liq. Cryst., 2009, 509, 206-212. (Invited paper)
9. Yasuyuki Sasada, Hirosato Monobe, Yasukiyo Ueda and Yo Shimizu, "Aromatic Fluorination Effect on the Mesomorphic Properties of Discotic Liquid Crystals of Alkoxybenzoyloxytriphenylenes", Mol. Cryst. Liq. Cryst., 2009, 509, 186-194.
10. Ke-Qing Zhao, Y. F. Bay, Pin Hu, Bin- Qing Wang and Yo Shimizu, "Synthesis of Triphenylene Discotic Liquid Crystal Dimers: Click Chemistry as an efficient Tool", Mol. Cryst. Liq. Cryst., 2009, 509, 77-88.
11. Y. F. Bay, Ke-Qing Zhao, Pin Hu, Bin- Qing Wang and Yo Shimizu, "Synthesis of Amido Group Containing Triphenylene Derivatives as DiscoticLiquid Crystals and Organic Gelators", Mol. Cryst. Liq. Cryst., 2009, 509, 60-76.
12. Takuya Ohzono, Hirosato Monobe, Rumiko Yamaguchi, Yo Shimizu and Hiroshi Yokoyama, "Dynamics of surface memory effect in liquid crystal alignment on reconfigurable microwrinkles", Appl. Phys. Lett., 2009, 95, 014101-1-014101-3.
13. Yasuo Miyake, Akihiko Fujii, Masanori Ozaki and Yo Shimizu, "Carrier Mobility of a Columnar Mesophase Formed by a Perfluoroalkylated Triphenylene", Synth. Met., 2009, 159, 875-9.

2008

1. Takuya Ohzono, Hirosato Monobe and Yo Shimizu, " Liquid Crystal Alignment on Self-Organized Microwrinkles", Appl. Phys. Exp., 2008, 1, 065001-3.
2. Yuki Hirai, Hirosato Monobe, Nobuhiro Mizoshita, Masaya Moriyama, Kenji Hanabusa, Yo Shimizu and Takashi Kato, "Enhanced Hole Transporting Behavior of Discotic Liquid Crystalline Physical Gels", Adv. Funct. Mater., 2008, 18, 1668-75.
3. Takayo Moriuchi-Kawakami, Hiroshi Nishimura, Yasuhiko Shibutani, Takushi Sugino and Yo Shimizu , "Mesomorphic Effect of Discotic-type Liquid Crystalline Compounds as Neutral Carriers on Potentiometric Ion-sensing Membranes", Chem. Lett., 2008, 37, 450-1.
4. Yasuyuki Sasada, Hirosato Monobe, Yasukiyo Ueda and Yo Shimizu "Drastic Enhacement of Discotic Mesomorphism Induced by the Fluorination of the Peripheral Phenyl Groups in Triphenylene Mesogns", Chem. Commun., 2008, 1452-4.
5. Hirosato Monobe, Kunio Awazu and Yo Shimizu, "Alignment control of columnar liquid crystals with wavelength tunable CO2 laser irradiation", Thin Solid Films, 2008, 516, 2677-81.

2007

1. Bin-Qing Wang, Ke-Qin Zhao, Pin Hu, W.-H. Yu, C.-Y. Gao, Hirosato Monobe and Yo Shimizu, "Tuning Hydrogen-Bonding with Amide Groups for Stable Columnar Mesophases of Triphenylene Discogens", Mol. Cryst. Liq. Cryst., 2007, 479, 135-50.
2. Fabien Nekelson, Hirosato Monobe and Yo Shimizu, "New Double-Decker Phthalocyanine Metallomesogens", Mol. Cryst. Liq. Cryst., 2007, 479, 205-211.
3. Hirosato Monobe, Shuichi Okamoto, Hiroyuki Enomoto and Yo Shimizu, "Ambipolar charge carrier transport properties in the homologous series of 2,3,6,7,10,11-hexaalkoxytriphenylene", Mol. Cryst. Liq. Cryst., 2007, 476, 277-287.
4. Hirosato Monobe, Hironobu Hori, Yo Shimizu and Kunio Awazu, "Alignment control of columnar liquid crystals for uniformly homeotropic domain with circularly polarized infrared irradiation", Mol. Cryst. Liq. Cryst., 2007, 475, 13-22.
5. Yo Shimizu, Kazuma Oikawa, Ken-ichi Nakayama and Daniel Guillon, "Mesophase Semiconductors and the Field Effect Transistors", J. Mater. Chem., 2007, 17, 4223-9 (highlight article, invited).
6. Jean-Moïse Suisse, Laurent Douce, Stéphane Bellemin-Laponnaz Aline Maisse- François, Richard Welter, Yasuo Miyake and Yo Shimizu, "Liquid crystal imidazolium salts: towards materials for catalysis and molecular electronics", Eur. J. Inorg. Chem., 2007, 3899-905.
7. Kazuma Oikawa, Hirosato Monobe, Ken-ichi Nakayama, Takahisa Kimoto, Kazuhiko Tsuchiya, Benoît Heinrich, Daniel Guillon, Yo Shimizu and Masa-aki Yokoyama, "High Carrier Mobility of the Organic Field-Effect Transistors with Thiophene-Naphthalene Mesomorphic Semiconductor", Adv. Mater., 2007, 19, 1864-8.
8. Fabien Nekelson, Hirosato Monobe, Motoo Shiro and Yo Shimizu, "Liquid Crystalline and Charge Transport Properties of Double-Decker Cerium Phthalocyanine Complexes", J. Mater. Chem., 2007, 17, 2607-15. Contributed to the cover artwork.
9. Yasuyuki Sasada, Hirosato Monobe, Yasukiyo Ueda and Yo Shimizu, "Aromatic Fluorination Effect on the Mesomorphic Properties of Discotic Liquid Crystal of Alkoxybenzoyloxytriphenylene", Chem. Lett., 2007, 36, 584-5.
10. Monika J. Sienkowska, Hirosato Monobe, Piotr Kaszynski and Yo Shimizu, "Photoconductivity of Liquid Crystalline Derivatives of Pyrene and Carbazole" J. Mater. Chem., 2007, 17, 1392-8.
11. Ke-Qing Zhao, Ping Hu, Bi-Qin Wang, Wen-Hao Yu, Hong-Mei Chen, Xin-Ling Wang and Yo Shimizu, "Synthesis of Mixed Tail Triphenylene Discotic Liquid Crystals: Molecular Symmetry and Oxygen-Atom Effect on the Stabilization of Columnar Mesophases", Chin. J. Chem., 2007, 25, 375-81.

2006

1. Fabien Nekelson, Hirosato Monobe and Yo Shimizu, "A New Double-Decker Phthalocyainine Mesogen", Chem. Commun., 2006, 3874-6.
2. Hirosato Monobe, Kunio Awazu and Yo Shimizu, "Alignment Control of a Columnar liquid Crystal for a Uniformily Homeotropic Domain Using Circularly Polarized Infrared Irradiation", Adv. Mater., 2006, 18, 607-610.
3. Hirosato Monobe, Hironobu Hori, Manabu Heya, Kunio Awazu and Yo Shimizu, "Homeotropic Alignment Change for Discotics in plastic columnar mesophase by Infrared Irradiation", Thin Solid Films, 2006, 499, 259-62.
4. Kenji Kiyohara, Hirosato Monobe, Naohiro Terasawa, Yo Shimizu and Kinji Asaka, "Surface Anchoring of Rod-like Molecules on corrugated substrates", J. Chem. Phys., 2006, 124, 034704-1-11.

2005

1. Masaaki Inoue, Hirosato Monobe, Masakatsu Ukon, Vladimir F. Petrov, Tsuyoshi Watanabe, Atsushi Kumano and Yo Shimizu, "Fast Charged Carrier Mobility of a Triphenylene-based Polymer Film Possessing Nematic Order", Opto-Electron. Rev., 2005, 13, 303-8.
2. Kazuma Oikawa, Hirosato Monobe, Junpei Takahashi, Kazuhiko Tsuchiya, Benoît Heinrich, Daniel Guillon and Yo Shimizu, "A Novel Calamitic Mesophase Semiconductor with the Fastest Mobility of Charged Carriers: 1,4-di(5'-octyl-2'-thienyl)benzene", Chem. Commun., 2005, 5337-9.
3. Hirosato Monobe, Yo Shimizu, Masaru Heya and Kunio Awazu, "Alignment Change of Discotic Liquid Crystal Domains by Waavelength Tunable Infrared Laser Irradiation", Mol. Cryst. Liq. Cryst., 2005, 443, 211-7.
4. Yo Shimizu, Hirosato Monobe, Masaru Heya and Kunio Awazu, "An Infrared Technique for the Alignment Control of Liquid Crystalline Semiconductors", Mol. Cryst. Liq. Cryst., 2005, 443, 49-58.
5. Yo Shimizu, Hirosato Monobe, Masaru Heya and Kunio Awazu, "Novel technique for the alignment control of highly ordered liquid crystals based on vibrational excitation of chemical bond by polarized infrared laser", Mol. Cryst. Liq. Cryst., 2005, 441, 287-295.
6. Yo Shimizu, Hirosato Monobe, Hironobu Hori and Kunio Awazu, "An infrared technique for the alignment control of highly viscous mesophases: The formation of homeotropic and planar domains for hexagonal columnar mesophase of Triphenylene mesogens", Proc. SPIE, Int. Soc. Opt. Eng., 2005, 5936, 59360M1-8. (Invited paper)
7. Kentaro Irie, Shinjiro Machida, Tohru Ikegami, Nobuo Tanaka, Hiroshi Miyasaka, Yo Shimizu and Akira Itaya, "Photophysical properties of a carbazolyl mesogen of 8PCzC as revealed by absorption, fluorescence and transient absorption measurements", Photochem. Photobiol. Sci., 2005, 4, 128-34.

2004

1. Takayo Moriuchi-Kawakami, Hiroshi Nishimura, Keiichi Fujimori, Yasuhiko Shibutani, Takushi Sugino and Yo Shimizu, "Ion-Sensing Behavior of Ion-Selective Electrodes Based on 5, 10, 15, 20-Tetrakis(4-n-Dodecylphenyl)porphyrin", Chem. Lett., 2004, 33, 1474-5.
2. Hirosato Monobe,Naohiro Terasawa, Kenji Kiyohara and Yo Shimizu, "Alignment Behaviour of Discotic Nematic and Rectangular Columnar Mesophases on Self-Assembled monolayers of Alkanethio and Asymmetrical Alkyl Disurfide", Mol. Cryst. Liq. Cryst., 2004, 412, 229-236.
3. Yoshihiro Setoguchi, Hirosato Monobe, Wen Wan, Naohiro Terasawa, Kenji Kiyohara, Naotake Nakamura and Yo Shimizu, "Infrared Spectral Studies of Triphenylene Mesogens Possessing Terminal Functional Groups in the Peripheral Chains for Hydrogen-Bond Interaction", Mol. Cryst. Liq. Cryst., 2004, 412, 9-18.
4. Hirosato Monobe, Kenji Kiyohara, Manabu Heya, Kunio Awazu and Yo Shimizu, "Controlling the Orientation of the Columns in a DLC by Irradiation with IR", Mol. Cryst. Liq. Cryst., 2004, 410, 29-38.
5. Takushi Sugino, Julio Santiago, Yo Shimizu, Benoît Heinrich and Daniel Guillon, "Mesomorphic Properties of a Tetraphenylporphyrin Metallomesogen with Weak Hydrogen Bond Interaction by the Axial Ligand: Dihydroxo[5,10,15,20-Tetrakis(4-n-dodecylphenyl)porphinato]silicon(IV)", Liq. Cryst., 2004, 31, 101-8.

2003

1. Hirosato Monobe, Kenji Kiyohara, Naohiro Terasawa, Manabu Heya, Kunio Awazu and Yo Shimizu, "Anistropic Change of Liquid-Crystal Domains by Polarized Infrared Pulsed Laser Irradiation for a Columnar Mesophase", Adv, Funct. Mater., 2003, 13, 919-24.
2. Hirosato Monobe, Kenji Kiyohara, Naohiro Terasawa, Manabu Heya, Kunio Awazu and Yo Shimizu, "Infrared photoinduced alignment change for triphenylene-based columnar liquid crystals by using free electron laser", Thin Solid Films, 2003, 438-9, 418-22.
3. Yoshihiro Setoguchi, Hirosato Monobe, Wen Wan, Naohiro Terasawa, Kenji Kiyohara, Naotake Nakamura and Yo Shimizu, "Infrared Studies on Hydrogen Bond Interaction in a Homologues Series of Triphenylene Discotic Liquid Crystals Having Carboxylic Acids at the Peripheral Chains", Thin Solid Films, 2003, 438-9, 407-13
4. Hirosato Monobe, Kenji Kiyohara, Naohiro Terawasa, Manabu Heya, Kunia Awazu, and Yo Shimizu "Anisotropic Alignment Change of Columnar Liquid Crystal by Polarized Infrared Irradiation", Chem. Lett., 2003, 32, 870-1.
5. Naohiro Terasawa, Hirosato Monobe, Kenji Kiyohara and Yo Shimizu, "Strong Tendency Towards Homeotropic Alignment in a Hexagonal Columnar Mesophase of Fluoroalkylated Triphenylenes", Chem.Commun., 2003, 1678-9.
6. Yo Shimizu, Atsuhiko Kurobe, Hirosato Monobe, Naohiro Terasawa, Kenji Kiyohara and Kingo Uchida, "Calamitic and Discotic Mesophases formed by Kinetically Controlled Rod-Disc Alternation of Molecular Shape in a Triphenylene-azobenzene Mesogenic System", Chem. Commun., 2003, 1676-8.
7. Stéphan Méry, Daniel Guillon, Hirosato Monobe and Yo Shimizu, "Liquid Crystals Containing a 2,6-Disubstituted Anthracene Core - Mesomorphism, Charge Transport and Photochemical Properties", J.Mater.Chem., 2003, 13, 1622-30.
8. Wen Wan, Hirosato Monobe, Yuko Tanaka and Yo Shimizu, "Mesomorphic properties of copolyesters of 3,6-linked triphenylene-based units and polymethylene spacers", Liq.Cryst., 2003, 30, 571-8.

2002

1. Naohiro Terasawa, Hirosato Monobe, Kenji Kiyohara, Yo Shimizu, "Fluorination Effect of the Peripheral Chains on the Mesomorphic Properties in Discotic Liquid Crystals of Hexa-Substituted Triphenylene", Chem.Lett., 2002, 32, 214-215.
2. 右近正克、渡邊　毅、杉野卓司、物部浩達、清水　洋、「ディスコチックネマチック相の光重合により得られる高分子フィルムの秩序パラメータ」、高分子論文集、2002, 59, 787-91.
3. Yo Shimizu, Hirosato Monobe, Manabu Heya and Kunio Awazu, "Infrared-Induced Domain Change of Columnar Liquid Crystal by FEL:Toward a New Technology for Liquid Crystal Domain Control", Jpn.J.Appl.Phys., 2002, 41, 104-107.
4. Masakatsu Ukon, Takushi Sugino, Tsuyoshi Watanabe, Hirosato Monobe and Yo Shimizu, "Photopolymerization and Molecular Orientational Order of Discotic Nematic Phase in 2,3,6,7,10,11-Hexakis((4-(8-acryloyloxyoctyloxy)benzoyloxy)triphenylene", Macromol.Mater.Eng., 2002, 287, 698-705.
5. Kenji Kiyohara, Koji Ohta, and Yo Shimizu, "A Molecular Dynamics Simulation Study of the Nonlinear Optical Response of Liquid Crystalline Systems", Mater.Res.Soc.Proc., 2002, 709, 123-8.
6. Kenji Kiyohara, Koji Ohta, Yo Shimizu, "Optical Kerr effect in nematic liquid crystals: a molecular dynamics study", Mol. Phys., 2002, 100, 2423-31.
7. Norihiro Mizoshita, Hirosato Monobe, Masaaki Inoue, Masakatsu Ukon, Tsuyoshi Watanabe, Yo Shimizu, Kenji Hanabusa and Takashi Kato, "The positive effect on hole transport behaviour in anisotropic gels consisting of discotic liquid crystals and hydrogen-bonded fibres", Chem. Commun., 2002, 248-9.
8. Stéphane Méry, Denis Haristoy, Jean-François Nicoud, Daniel Guillon, Siegmar Diele, Hirosato Monobe, Yo Shimizu, "Bipolar carrier transport in a lamello-columnar mesophase of a sanidic liquid crystal", J. Mater. Chem., 2002, 12, 37-41.

2001

1. Vladimir F. Petrov Yo Shimizu, "(Iso)Thiocyanato Substitution in Calamitic Liquid Crystals", Mol.Cryst.Liq.Cryst., 2001, 363, 107-21.
2. Vladimir F.Petrov, E.P.Pozhidaev, A.L.Andreev, I.N.Kompanets and Yo Shimizu, "Study of Some Achiral Liquid Crystalline Ester Derivatives", Mol.Cryst.Liq.Cryst., 2001, 363, 97-106.
3. Hirosato Monobe, Shoji Mima, Masakatsu Ukon, Takushi Sugino, Yo Shimizu, "Orientational behavior of discotic nematic phase for a discotic liquid crystalline triphenylene on polyimide and alkylammoniumbromide coated substrates", Mol.Cryst.Liq.Cryst., 2001, 370, 241-44.
4. Yo Shimizu, "Photoconductivity of Discotic Liquid Crystals: A Mesogenic Long-Chain Tetraphenylporphyrin and Their Metal Complexes" 　　　 Mol.Cryst.Liq.Cryst., 2001, 370, 83-91.(Invited paper)
5. Hirosato Monobe, Hiroski Azehara, Yo Shimizu, Masamichi Fujihira, "Alignment Behavior of Discotic Nematic and Rectangular Columnar Phases on Self-assembled Monolayers of Alkanethiol and Asymmetrical Disulfide", Chem. Lett., 2001, 1268-9.
6. Hirosato Monobe, Yoshihiro Miyagawa, Shoji Mima, Takushi Sugino, Kingo Uchida, Yo Shimizu, "Photoconductive properties of a mesogenic long-chain tetraphenylporphyrin oxovanadium(IV) complex", Mol.Cryst.Liq.Cryst., 2001, 368, 311-318.
7. Joji Kawamura, Hiroshi Hasebe, Naoki Obi, Yo Shimizu, "Transparency of anisotropic films made by photopolymerization of UV-curable liquid crystals", Mol.Cryst.Liq.Cryst., 2001, 368, 137-144.
8. Masaaki Inoue, Masakatsu Ukon, Hirosato Monobe, Takushi Sugino, Yo Shimizu, "Effect of Photopolymerization on Photoconductive Behavior in Triphenylene Discotic Liquid Crystals", Mol.Cryst.Liq.Cryst., 2001, 365, 439-446.
9. Wen Wan, Takushi Sugino, Hirosato Monobe, Yuko Tanaka, Yo Shimizu, "Mesomorphic properties and hydrogen bonding formation of asymmetrical triphenylene discotic liquid crystals", Mol.Cryst.Liq.Cryst., 2001, 364, 597-603.
10. Hirosato Monobe, Kunio Awazu, Yo Shimizu, "Infrared photoinduced change of liquid crystal domains for a columnar mesophase", Mol. Cryst. Liq. Cryst., 2001, 364, 453-460.
11. Yoji Maeda, Yo Shimizu, "Phase Behaviour of the Discotic Mesogen 5,10,15,20-Tetrakis(4-n-Dodecyl- phenyl)porphyrin under Hydrostatic Pressure", Mol.Cryst.Liq.Cryst., 2001, 364, 347-351.
12. Yo Shimizu, Julio Santiag, Takushi Sugino, Hirosato Monobe, "Effect of intermolecular axial interaction on columnar mesomorphism in long- chain metallotetraphenylporphyrins", Mol.Cryst.Liq.Cryst., 2001, 364, 235-242.
13. Vladimir F. Petrov, Yo Shimizu, "Nitro Substitution in Achiral Calamitic Liquid Crystals", Liq.Cryst., 2001, 28, 1627-47.
14. Hirosato Monobe, Yoshihiro Miyagawa, Shoji Mima, Takushi Sugino, Kingo Uchida, Yo Shimizu, "Photoconductive Properties of a Mesogenic Long-Chain Tetraphenylporphyrin oxovanadium(IV) Complex", Thin Solid Films, 2001, 393, 217-224.
15. Yo Shimizu, Kunio Awazu, Hirosato Monobe, "Vibrational Excitation Induced Change of Liquid Crystalline Domains in Nematic and Smectic Phases", Thin Solid Films, 2001, 393, 66-72.
16. Hirosato Monobe, Shoji Mima, Takushi Sugino, Yo Shimizu, Masakatsu Ukon, "Alignment behaviour of the discotic nematic phase of 2,3,6,7,10,11-hexa(4-n- octyloxybenzoyloxy)triphenyleneon on polyimide and cetyltrimethylammonium- bromide coated substrates", Liq. Cryst., 2001, 28, 1253-1258.
17. Hirosato Monobe, Shoji Mima, Takushi Sugino, Yo Shimizu, "Mesomorphic and photoconductive properties of a mesogenic long-chain tetraphenylporphyrin nickel(II) complex", J.Mater.Chem., 2001, 11, 1383-1392.
18. Jonathan P.Hill, Takushi Sugino, Motoo Shiro, Yo Shimizu, "Hydrogen-Bonded Chain Structure of a Six-Coordinate 5,10,15,20-Tetra- phenylporphinatomanganese(III) Complex", Inorg.Chim.Acta, 2001, 315, 107-11.
19. Vladimir F. Petrov, Meili Duan, Hiroaki Okamoto, Jin Mu, Yo Shimizu and Shunsuke Takenaka, "Haloganation in AchiralLiquid Crsytals. Terminal and Linking Substitutions" Liq.Cryst., 2001, 28, 387-410.

2000

1. Hirosato Monobe, Kunio Awazu, Yo Shimizu, "Change of Liquid Crystal Domains by Vibrational Excitation for a Columnar Mesophase", Adv.Mater., 2000, 12 1495-99.
2. Hirosato Monobe, Shoji Mima, Takushi Sugino, Yo Shimizu, "Carrier Mobility of Lamellar Mesophases of a Long-Chain Tetraphenylporphyrin", Chem.Lett., 2000, 1004-5.
3. Kingo Uchida, Yuji Kawai, Yo Shimizu, Volkmar Vill, Masahiro Irie, "An Optically Active Diarylethene Having Cholesterol Units: A Dopant　for Photoswitching of Liquid Crystal Phases", Chem.Lett., 2000, 654-5.
4. Kenji Kamada, Minoru Ueda, Hidemi Nagao, Keiko Tawa, Takushi Sugino, Yo Shimizu, Koji Ohta, "Molecular Design for Organic Nonlinear Optics: Polarizability and Hyperpolar-izabilities of Furan Homologues Investigated by Ab Initio Molecular Orbital Method", J.Phys.Chem., 2000, 104, 4723-39.
5. Tomoko Akai, Yo Shimizu, "13C CPMAS NMR of 5,10,15,20-Tetrakis(4-n-dodecylphenyl)porphyrin: Dynamics of aliphatic chains in discotic lamellar mesophases", Liq.Cryst., 2000, 27, 437-41.

1999

1. Yo Shimizu, Hirosato Monobe, Shoji Mima, Taizo Higashiyama, Tomonori, Fuchita, Takushi Sugino, "Photoconductivity of a Discotic Liquid Crystal Derived from a Mesogenic Long-Chain Tetraphenylporphyrin", Mater.Res.Soc.Symp.Proc., 1999, 559, 211-222. (Invited Paper)
2. Yo Shimizu, Tomonori Fuchita, Taizo Higashiyama, Takushi Sugino, "Photocurrent Action Spectra of the Photoconductive Cell with a Mesogenic Long-Chain Tetraphenylporphyrin", Mol.Cryst.Liq.Cryst., 1999, 331, 575-582.
3. Jonathan P.Hill, Takushi Sugino, Yo Shimizu, "Synthesis and Characterization of Some Manganese Complexes of 5,10,15,20- Tetrakis(4-n-dodecylphenyl)porphyrin", Mol.Cryst.Liq.Cryst., 1999, 332, 119-125.
4. Takushi Sugino, Julio Santiago, Yo Shimizu, Benoit Heinrich, Daniel Guillon, "Mesomorphic Properties of Porphyrin Silicone(IV) Metal Complexes", Mol.Cryst.Liq.Cryst., 1999, 330, 15-22.
5. Julio Santiago, Takushi Sugino, Yo Shimizu, "The First Oxotitanium Phthalocyanine Metallomesogen as a Liquid Crystalline Photoconductor: 2,3,9,10,16,17,23,24-Octakis(n-octadecylthio)phthalocyaninato- oxotitanium(IV)", Mol.Cryst.Liq.Cryst., 1999, 332, 497-504.
6. Ashishi Agarwal, Kenji Kamada, Yo Shimizu, Koji Ohta, "Coherent Dip in Optical Kerr Measurement Arising from Grating Formation in Weakly Absorptive Media", Nonlinear Opt., 1999, 21, 335-342.
7. Yoji Maeda, Yo Shimizu, "Phase Behaviour of the Discotic Mesogen 5,10,15,20-Tetrakis(4-n-dodecyl- phenyl)porphyrin under Pressure", Liq.Cryst., 1999, 26, 1067-1078.
8. Kenji Kamada, Takushi Sugino, Minoru Ueda, Keiko Tawa, Yo Shimizu, Koji Ohta,"Femtosecond Optical Kerr Study of Heavy Atom Effects on the Third-Order Nonlinearity of Thiophene Homologues: Electronic Hyperpolarizability of Tellurophene", Chem.Phys.Lett., 1999, 302, 615-620.

1998

1. Yoji Maeda, Yo Shimizu, "Enantiotropic and Monotropic Transitions of the discotic mesogen 5,10,15,20- Tetrakis(4-n-dodecylphenyl)porphyriun under pressure", Liq.Cryst., 1998, 25, 537-542.
2. Kenji Kamada, Minoru Ueda, Hidemi nagao, Keiko Tawa, Takushi Sugino, Yo Shimizu, Koji Ohta, "Effect of Heavy Atom on the Second Hyperpolarizability of Tetrahydrofuran Homologues Investigated by Ab Initio Molecular Orbital Method", Int.J.Quant.Chem., 1998, 70, 737-743.
3. Julio Santiago, Takushi Sugino, Yo Shimizu, "The First Discotic Metallomesogen Derived from Phthalocyaninatooxotitanium for a Novel Photoconductive Liquid Crystal", Chem.Lett., 1998, 661-662.
4. Yo Shimizu, Sukrit Tantrawong, Masaya Yoshida, Takushi Sugino, "Magenic Properties of a Binary Mixture of Paramagnetic Metallomesogens", Mater.Res.Soc.Proc., 1998, 488, 823-828.
5. Sukrit Tantrawong, Takushi Sugino, Yo Shimizu, Akira Takeuchi, Shinji Kimura, Takehiko Mori, Hideo Takezoe, "Novel Dipolar Metallomesogens: An Octa-Substituted Vanadyl Phthalocyanine with Low Clearing Temperature", Liq. Cryst., 1998, 24, 783-786.
6. Yo Shimizu, Taizo Higashiyama, "Effect of Mesomorphic Phase Transitions on Absorption and Fluorescence Spectra of Long-Chain Tetraphenylporphyrin", Proc.SPIE, Int.Soc.Opt.Eng., 1998, 3319, 177-180.

1997

1. 1.Koji Ohta, Kimiko Nakao, Yo Shimizu, "FT-IR and FT-Raman Spectroscopic Studies on Phase Transitions of a Mesogenic Long-Chain Tetraphenylporphyrin", Mikrochimica Acta Supplement, 1997, 14, 217-220.

1995

1. Akira Nagata, Yo Shimizu, Hiroyuki Nagamoto, Masaru Miya, "Synthesis and Mesomorphic Behaviour of Oxochloro[5,10,15,20-Tetrakis(4- dodecylphenyl)porphinato]molybdenum(V)", Inorg. Chim. Acta, 1995, 238, 169-171.
2. Yo Shimizu, Jun-ya Matsuno, Kimiko Nakao, Koji Ohta, Masaru Miya, Akira Nagata, "Mesogenic Aluminum (III) Tetraphenylporphyrins: Effect of Monomer to Dimer Conversion on the Mesomorphic Properties", Mol. Cryst. Liq. Cryst., 1995, 260, 491-497.
3. Yo Shimizu, Jun-ya Matsuno, Masaru Miya, Akira Nagata, "The First Aluminium Discotic Metallomesogen: Hydroxo[5,10,15,20-Tetrakis- (4-dodecylphenyl)porphinato]aluminium(III)", J. Chem. Soc., Chem. Commun., 1995, 2411-2412.

1993

1. Yo Shmizu, Atsushi Ishikawa, Shigekazu Kusabayashi, Masaru Miya, Akira Nagata, "Photoconducting Behaviour of Mesophases: 5,10,15,20-Tetrakis(4-pentadecyl- phenyl)porphyrin", Chemistry of Functional Dyes, Vol.2, Z. Yoshida and Y. Shirota Ed., Mita Press, Tokyo, 1993, p310-6.
2. Yo Shimizu, Atsushi Ishikawa, Shigekazu Kusabayashi, Masaru Miya, Akira Nagata, "Novel Photocurrent Rectification Behaviour for a Photoconductive Cell using the Mesogenic 5,10,15,20-Tetrakis(4-pentadecylphenyl)porphyrin", J. Chem. Soc., Chem. Commun., 1993, 656-8.
3. Yo Shimizu, Masaru Miya, Akira Nagata, Kazuchika Ohta, Iwao Yamamoto, Shigekazu Kusabayashi, "Mesomorphic Phase Transitions of Tetraphenylporphyrins with Four Long Aliphatic Chains", Liq. Cryst., 1993, 14, 795-804.

1992

1. Yo Shimizu, Toru Sakaguchi, Masaru Miya, Akira Nagata, "Second Harmonic Generation(SHG) of the Crystalline States for the Homologues of Several Mesogenic Benzylideneamino Derivatives", Chemistry Express, 1992, 7, 185-9.
2. Toru Sakaguchi, Masaru Miya, Toshio Fukumi, Koji Ohta, Yo Shimizu, Akira Nagata, "Solvent Effect of the Third-Order Nonlinear Optical Susceptibility of Vitamin B12 Revealed by Degenerate Four-Wave Mixing", Chemistry Express, 1992, 7, 109-12.
3. Toru Sakaguchi, Yo Shimizu, Masaru Miya, Toshio Fukumi, Koji Ohta, Akira Nagata, "Third-Order Nonlinear Optical Susceptibilities of Solutions of Some Mesogenic Metallotetraphenylporphyrins by Nanosecond Degenerate Four-Wave Mixing Method", Chem. Lett., 1992, 281-4.

1991

1. Hideki Ueno, Yo Shimizu, Takayuki Mishima, Jun Shioya, Norihiko Yasuda, "Preparation and Properties of Highly Conductive Graphite Intercalation Compounds Obtained by Vapor Deposition", Syn.Met., 1991, 42, 2703-8.
2. Yo Shimizu, Masaru Miya, Akira Nagata, Kazuchika Ohta, Ayao Matsumura, Iwao Yamamoto, Shigekazu Kusabayashi, "Mesomorphic Phase Transitions of 5,10,15,20-Tetrakis(4-n-dodecylphenyl)porphyrin", Chem. Lett., 1991, 25-8 .

1990

1. Takafumi Uemiya, Naota Uenishi, Yo Shimizu, Masaru Matsuoka, Teijiro Kitao, Takashi Fujiwara, Kazumi Nakatsu, "Second Harmonic Generationm of Indole Derivatives", Chemistry of Functional Dyes, Vol.1, Z. Yoshida Ed., Mita Press, Tokyo, 1990, p556-9.
2. Kazumi Nakatsu, Naoki Yoshie, Hiroshi Yoshioka, Takashi Nogami, Yasuhiko Shirota, Yo Shimizu, Takafumi Uemiya, Norihiko Yasuda, "Polymorphism and Molecular and Crystal Structures of a Second Order Nonlinear Optical Compound Containing a 1,3-Dithiole Ring", Mol. Cryst. Liq. Cryst., 1990, 182, 59-69.
3. Takafumi Uemiya, Naota Uenishi, Yo Shimizu, Takeshi Yoneyama, Kazumi Nakatsu, "Crystal Growth and Characterization of N-(5-Nitro-2-pyridil)-(S)-phenylalaninol: A New Organic Material for Nonlinear Optics", Mol. Cryst. Liq. Cryst., 1990, 182, 51-57.
4. Takafumi Uemiya, Naota Uenishi, Yo Shimizu, Shinichi Okamoto, Hideki Takuma, Shinsuke Umegaki, "Crystal Cord Fiber Using Organic Material and Focusing Properties of Generated Second-Harmonic Wave", Proc. SPIE, Int. Soc. Opt. Eng., 1990, 114, 207-10.

1989

1. Takashi Nogami, Hideyuki Nakano, Yasuhiko Shirota, Shinsuke Umegaki, Yo Shimizu, Takafumi Uemiya, Norihiko Yasuda, "Optical Second-Harmonic Generation from a Series of [Cyano(alkoxycarbonyl) methylene]-2-ylidene-1,3-dithioles and Their Methyl and Dimethyl Derivatives", Nonlinear Optics of Organics and Semiconductors, Splinger-Verlag, Tokyo, 1989, p232-5.
2. Yo Shimizu, Takafumi Uemiya, Naoki Yoshie, Hiroshi Yoshioka, Kazumi Nakatsu, Takashi Nogami, Yasuhiko Shirota, "Crystal Structures of a New Organic second Order Nonlinear Optical Material: [Cyano(ethoxycarbonyl)methylene]-2-ylidene-4,5-dimethyl-1,3-dithioles", Nonlinear Optics of Organics and Semiconductors, Splinger-Verlag, Tokyo, 1989, p210-4.
3. Takashi Nogami, Hideyuki Nakano, Yasuhiko Shirota, Shinsuke Umegaki, Yo Shimizu, Takafumi Uemiya, Norihiko Yasuda, "Optical Second-Harmonic Generation from a Series of [Cyano(alkoxycarbonyl) methylene]-2-ylidene-1,3-dithioles and Their Methyl and Dimethyl Derivatives", Chem. Phys. Lett., 1989, 155, 338-45.

1987

1. Hirofumi Sakashita, Shigekli Komori, Kazuya Kamon, Hikaru Terauchi, Yo Shimizu, Shigekazu Kusabayashi, "X-Ray Diffraction Study on the Reentrant Smectic A Phase in a Binary Liquid Crystal System", Mol. Cryst. Liq. Cryst., 1987, 149, 49-60.

1986

1. Yo Shimizu, Shigekazu Kusabayashi, "A N-SA-SC-SA Reentrant Phenomenon by a Binary MIxture of Dodecyloxy and Tridecyloxy Homologues of 2-(4-Alkoxybenzylideneamino)fluorenones", Mol. Cryst. Liq. Cryst. Lett., 1986, 3, 121-125.
2. Yo Shimizu, Atsushi Ishikawa, Shigekazu Kusabayashi, "Photoconducting Behavior in Relation to Phase Transitions. 5,10,15,20-Tetrakis (4-n-pentadecylphenyl)porphyrin", Chem. Lett., 1986, 1041-1044.
3. Yo Shimizu, Kunio Shigeta, Shigekazu Kusabayashi, "Mesomorphic and Photoconducting Behavior of 2-(2-Hydroxy-4-alkoxybenzyl-ideneamino)-9-methylcarbazoles", Mol. Cryst. Liq. Cryst., 1986, 140, 105-117.
4. Yo Shimizu, Akio Ikegami, Masatomo Nojima, Shigekazu Kusabayashi, "Mesomorphic Thermal Stability of 3-(4-Alkoxybenzylideneamino)dibenzofurans and 3-(4-Alkoxybenzylideneamino)dibenzothiophenes", Mol. Cryst. Liq. Cryst., 1986, 133, 111-123.
5. Yo Shimizu, Shigekazu Kusabayashi, "Occurrence of the Smectic C phase for 3-(2-Hydroxy-4-alkoxybenzylideneamino)dibenzofuran", Mol. Cryst. Liq. Cryst., 1986, 132, 221-233.
6. Yo Shimizu, Shigekazu Kusabayashi, "Novel Smectic C Mesogens. 3-(2-Hydroxy-4-alkoxybenzylideneamino)dibenzo- furans", Chem. Lett., 1985, 1003-4.

総説（review)

1. 清水　洋、「有機半導体としてのディスコチック液晶」、液晶、１７、２６−３９（２０１３）
2. 清水　洋、藤井彰彦、尾崎雅則、「液晶性を持つ有機半導体と有機薄膜太陽電池」、液晶、１５、２７２−２８７（２０１１)
3. 清水　洋、「液晶性半導体--分子の自己組織化性を有機半導体に利用する」、科学と工業、８４、６−１５（２０１０）
4. 清水　洋、「メソフェーズ系半導体と有機トランジスタ」、応用物理、７７、１４３８−１４４４（２００８）
5. Yo Shimizu, Kazuma Oikawa, Ken-ichi Nakayama and Daniel Guillon, "Mesophase Semiconductors and the Field Effect Transistors", Mater. Chem., 2007, 17, 4223-9 (highlight article, invited short review).
6. 物部浩達、清水　洋、「ディスコティック液晶の配向制御とその可能性」、液晶、日本液晶学会、 10, 369-379 (2006).
7. 清水　洋、物部浩達、粟津邦男、「赤外レーザを用いた液晶の新しい配向制御技術」、レーザー研究（レーザー学会誌）、３１,８１１--７（２００３）。
8. 清水　洋、物部浩達、「赤外レーザを用いた高秩序液晶の配向制御」、粟津邦男、光化学、３３、９８（２００２）.
9. 清水　洋、「カラムナー液晶-その多様な分子構造と分子間相互作用-」、液晶、６、１４７（２００２）
10. 柴田　豊、清水　洋、大沢良隆、「光とエラストマー、オプトエレクトロニクスへの応用」、日本ゴム協会誌、６１、８３９（１９８７）

解説（research topics）

1. 上沼睦典、浦岡行治、中村雅一、野々口斐之、清水　洋、河合　壯、「NAISTナノテクプラットフォームにおけるホットトピックスーナノ構造熱電変換材料の新潮流一」、金属、88 (No.2), 26-32 (2017).
2. 清水　洋、 「自己組織化性を有する有機半導体」、化学工業、62、15−19（2011）
3. 及川一摩、物部浩達、清水　洋、中山健一、横山正明、 「液晶性半導体を用いた高速動作ＦＥＴ素子」　電子材料、２００６年７月、p４３--５０.
4. 物部浩達、清水　洋、 「赤外線レーザによるディスコチック液晶の配向制御」、機能材料、 25、23-30（2005）.
5. 物部浩達、清原健司、清水　洋、部谷　学、粟津邦男、「赤外レーザ光照射によるカラムナー液晶の配向変化挙動」、Molecular Electronics and Bioelectronics（応用物理学会有機分子・バイオエレクトロニクス分科会）, 14, 97-100 (2003).
6. 物部浩達、清水　洋、 「分子協調作用を利用したディスコチック液晶の構造制御と光導電性」、機能材料,、 20, 19 (2000)
7. 清水　洋、「ディスコチック液晶と光導電性」、高分子、20、2411（1995）

著書（Book）

1. 清水　洋、3.3有機太陽電池--液晶性有機半導体、先端有機半導体デバイスー基礎からデバイス物性までー、日本学術振興会情報処理用有機材料第１４２委員会C部会編、オーム社、２０１５年、p１６７ー１７７.
2. 清水　洋、2.4 分子と偏光特性ー液晶の光学特性、光化学の事典、光化学協会光化学の事典編集委員会編、朝倉書店、p80-81.
3. Yo Shimizu, "Discotic Liquid Crystalline Blends for Nano-Structure Formation toward Bulk Heterojunction Active Layer in Organic Photovoltaics", Nanoscience with Liquid Crystals-From Self-Organized Nanostructures to Applications, Quang Li Edt., Springer, 2014, p257-280. ISBN:978-3-319-04866-6.
4. Yo Shimizu, "Liquid crystals towards soft organic semiconductors", Supramolecular Soft Matter, Takashi Nakanishi Ed., John Wiley & Sons (Hoboken), 2011, p345-360.
5. 清水　洋、「液晶性半導体：自己組織化性を有する有機半導体」、プリンテッドエレクトロニクス技術最前線、菅沼克昭監修、ＣＭＣ出版、２０１０年、ｐ６４−７１.
6. 清水　洋、物部浩逹、「高配向秩序液晶相の光配向制御--偏光赤外レーザ法」、光配向テクノロジーの開発動向、市村國宏監修、ＣＭＣ出版、２０１０年、ｐ２７−３８.
7. 清水　洋、「メソフェーズ系電子材料における分子の動的階層秩序制御と電荷輸送機能」、次世代共役ポリマーの超階層制御と革新機能、赤木和夫監修、ＣＭＣ出版、２００９年、ｐ２９１−２９７.
8. 清水　洋、「メソフェーズ材料の新たな視点」、分子協調材料の基礎と応用、市村國宏監修、ＣＭＣ出版、２００４年、ｐ１０６ー１１６.
9. 清水　洋、「液晶の機能、導電性材料」、液晶便覧、液晶便覧編集委員会編、丸善、２０００年、ｐ５４９--５２.
10. 清水　洋、「分子構造と液晶性、金属錯体液晶、金属錯体液晶の物性」、液晶便覧、液晶便覧編集委員会編、丸善、２０００年、ｐ３４７--５０
11. 清水　洋、「分子構造と液晶性、ディスコチック液晶」、液晶便覧、液晶便覧編集委員会編、丸善、２０００年、ｐ３３０--３。
12. 清水　洋、「液晶の配列と物性、相及び相転移、ディスコチック液晶」、液晶便覧、液晶便覧編集委員会編、丸善、２０００年、ｐ１８--２８
13. 清水　洋、「円盤状液晶　-　エキゾチックな液晶」,液晶材料研究の基礎と新展開、液晶若手研究会編、シグマ出版、１９９８、ｐ２１７
14. 清水　洋、「メソフェーズ材料の新たな視点-ディスコティック液晶-」,分子協調材料の創製と応用、市村國宏監修、ＣＭＣ出版、１９９８、ｐ１０６