期刊
ORGANIC ELECTRONICS
卷 51, 期 -, 页码 94-102出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2017.08.032
关键词
Poly(3-hexylthiophene-2,5-diyl); Defect-free; Floating film transfer; Molecular alignment; Field-effect transistors
资金
- CNPq-Brazil
- Department of Information Technology (DIT) India
- DST India
- CNPq Brazil
Performance enhancement of organic field-effect transistors (OFETs) based on solution-processable conjugated polymers (CPs) holds critical significance for the realization of cost-effective commercial applications such as organic light-emitting diode displays. One of the most critical performance parameters is the charge-carrier field-effect mobility (mu(FET)) that is significantly influenced by the molecular arrangement in a CP. In this article, floating film transfer method (FTM) is utilized for the deposition of a CP-defect-free poly(3-hexylthiophene-2,5-diyl) (DF-P3HT)-which results in the formation of aligned supra-molecular assemblies. When applied as the active layer in OFET devices, mu(FET) reaching as high as 8.0 cm(2)/V.s (6.3 cm(2)/V.s on average) is obtained. The value of mu(FET) observed in the current study is the highest value reported so far for P3HT based OFETs (similar to 5 times higher as compared to when DF-P3HT is deposited using spin coating). (C) 2017 Elsevier B.V. All rights reserved.
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