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  발표분야
기능성 고분자
  발표구분
포스터발표Poster presentation
  발표장치
Poster
  제목
High Performance Organic Field-effect Transistor through P3HT/EEG Channel Flexible Nanocomposite
  공동저자
  • 류승완 (한국화학연구원/충남대학교, 학사, 회원)
  • 이경진 (충남대학교, 회원)
  발표자
류승완 (한국화학연구원/충남대학교 , Email: sk*****@kr*********, 전화: ********7584
  연구책임자
이경진 (충남대학교 , Email: kj***@cn*******, 전화: ********7009
  키워드
-
  우수논문발표상
우수논문발표상에 응모하지 않습니다
High Performance Organic Field-effect Transistor through P3HT/EEG Channel Flexible Nanocomposite
류승완, 이경진1,†
한국화학연구원/충남대학교; 1충남대학교
We demonstrate that using nanocomposite thin films consisting of semiconducting polymer, poly(3-hexylthiophene) (P3HT), and electrochemically exfoliated graphene (EEG) for the active channel layer of organic field-effect transistors (OFETs) improves both device performances and mechanical properties. The nanocomposite film was developed by directly blending P3HT solution with a dispersion of EEG at various weight proportions and simply transferring to a Si/SiO2 substrate by the solution floating method. The OFET based on P3HT/EEG nanocomposite film showed approximately twice higher field-effect mobility of 0.0391 cm2·V-1·s-1 and one order of magnitude greater on/off ratio of ~104 compared with the OFET based on pristine P3HT. We also measured the mechanical properties of P3HT/EEG nanocomposite film via film-on-elastomer methods, which confirms that the P3HT/EEG nanocomposite film exhibited approximately 2.4 times higher modulus (3.29 GPa) than that of the P3HT film (1.38 GPa), while maintaining the good bending flexibility and durability over 10.0% of bending strain and bending cycles (1,000 cycles). It was proved that the polymer hybridization technique, which involves adding EEG to a conjugated polymer, is a powerful route for enhancing both device performances and mechanical properties while maintaining the flexible characteristics of OFET devices.
Keywords: -