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High Performance Polymer Field-Effect Transistors Based on Polythiophene Derivative with Conjugated Side Chain
He, Youjun1,2; Wu, Weiping1,2; Liu, Yunqi1; Li, Yongfang1
2009-10-15
Source PublicationJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN0887-624X
Volume47Issue:20Pages:5304-5312
AbstractPoly(3-[2-(5-hexyl-2-thienyl) ethenyl]-2,2'-bithiophene) (P2, see Scheme 1) with conjugated thienylvinyl side chain was synthesized by copolymerization of the thiophene units with and without conjugated side chain with Pd-catalyzed Stille coupling method. For comparison, P1 with the hexyl side chain instead of conjugated side chain was also synthesized. P2 film shows broad absorption in the visible region with absorption edge at about 700 nm. The solution-processed polymer field-effect transistors were fabricated and characterized with bottom gate/top contact geometry. The organic field-effect transistors (OFET) based on P2 showed an average hole mobility of about 0.034 cm(2)/Vs (the highest value reached 0.061 cm(2)/Vs) upon annealing at about 180 degrees C for 30 min, with a threshold voltage of -1.15 V and an on/off ratio of 10(4) with n-octadecyltrichlorosilane (OTS) modified SiO(2) substrate. In comparison, the OFET based on P1 displayed a hole mobility of 8.9 x 10(-4) cm(2)/Vs and an on/off ratio of 10(4) with OTS modified SiO(2) substrate. The results indicate that the polythiophene derivative with conjugated thienylvinyl side chain is a promising polymer for the application in polymer field-effect transistors. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 5304-5312, 2009
KeywordCharge Transport Conjugated Polymers Conjugated Side Chain Hole Mobility Organic Field Effect Transistors Polythiophene Derivatives Uv-vis Spectroscopy
DOI10.1002/pola.23579
Indexed BySCI
Language英语
WOS IDWOS:000270692100011
PublisherJOHN WILEY & SONS INC
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66146
Collection中国科学院化学研究所
Corresponding AuthorLi, Yongfang
Affiliation1.Chinese Acad Sci, Key Lab Organ Solids, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
He, Youjun,Wu, Weiping,Liu, Yunqi,et al. High Performance Polymer Field-Effect Transistors Based on Polythiophene Derivative with Conjugated Side Chain[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2009,47(20):5304-5312.
APA He, Youjun,Wu, Weiping,Liu, Yunqi,&Li, Yongfang.(2009).High Performance Polymer Field-Effect Transistors Based on Polythiophene Derivative with Conjugated Side Chain.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,47(20),5304-5312.
MLA He, Youjun,et al."High Performance Polymer Field-Effect Transistors Based on Polythiophene Derivative with Conjugated Side Chain".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 47.20(2009):5304-5312.
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