期刊
ORGANIC ELECTRONICS
卷 11, 期 3, 页码 363-368出版社
ELSEVIER
DOI: 10.1016/j.orgel.2009.11.014
关键词
Liquid crystal; Liquid crystalline semiconductor; Field-effect transistor; Flexible device
资金
- NEDO Industrial Technology Research Grant
- Association of New Chemistry
- Sumitomo foundation
We have fabricated the flexible field-effect transistors based on the liquid crystalline phenylterthiophene derivative via a solution process. A dielectric layer of polyvinyl alcohol (PVA) are deposited on a polyimide sheet substrate by a spin-coating method and then the thin film of 5-propyl-5 ''-(4-pentylphenyl)-2,2': 5',2 ''-terthiophene is fabricated from its chlorobenzene solution on the dielectric layer by spin-coating or solution sheared deposition method. The fabricated devices exhibit good electrical performance with a hole mobility of up to 0.05 cm(2) V-1 s(-1) as well as excellent mechanical flexibility. The performance does not degrade at the external strain reached 3%. Our results demonstrate that liquid crystalline semiconductors are promising materials for low-cost flexible electronic devices. (C) 2009 Elsevier B.V. All rights reserved.
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