Jeong Eunjeong of Photofunctional Organic Chemistry Laboratory received an oral presentation award in 2017 GIST-NAIST-NCTU Joint Symposium on Advanced Material
Award's outline
Jeong Eunjeong of Photofunctional Organic Chemistry Laboratory received the Silver Award in 2017 GIST-NAIST-NCTU Joint Symposium on Advanced Materials, held at Gwangju Institute of Science and Technology (GIST), Korea on October 30 and 31, 2017. In this event, a total of 31 students from the three institutes gave oral presentations on their most recent research achievements, and seven students were chosen for awards to recognize their superior presentations.
- Laboratory subject・Dissertation title
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Molecular Engineering of Tetrabenzoporphyrin toward High-Performance Organic Transistors
- Researcher/Author
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Jeong Eunjeong, Mitsuharu Suzuki, Hiroko Yamada
Winner's comment
I am really honored to receive this award in 2017 GIST-NAIST-NCTU Joint Symposium on Advanced Materials. My special thanks go to Professor Hiroko Yamada and Assit. Professor Mitsuharu Suzuki for their exceptional mentoring. I also want to thank to all the members in Photofunctional Organic Chemistry Laboratory for their kind help in various aspects of my research. With this award as additional motivation, I will keep trying my best to fully develop my research projects.
Research's content
Tetrabenzoporphyrin (BP) is a highly crystalline p-type small molecule having a large, rigid π-framework, which is advantageous in establishing charge-carrier transport paths in the solid state. However, it has been a challenge to obtain high-quality thin films of BP because of, at least partly, its low solubility hampering the employment of the state-of-art solution-processing techniques that enable effective control of molecular arrangement. In addition, only a limited number of well-soluble derivatives of BP have been reported to date, and little has been investigated about the impact of solubilizing substituents on the solid-state arrangement of BP frameworks and charge-transport properties.
In this work, we evaluated field-effect charge-carrier mobilities in newly designed, well-soluble BP derivatives, named NODMS-BP and NODMS-CuBP. Gratifyingly, thin films prepared by dip coating afforded considerably higher hole mobilities as compared to BP. Especially, high hole mobilities over 4 cm2 V-1 s-1 were observed in crystalline thin films of NODMS-CuBP.
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