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2022-12-14T04:27:47Z
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Effects of volatile additives in solutions used to prepare polythiophene-based thin-film transistors
Ichikawa, Musubu
Yamamura, Kenta
Jeon, Hyeon-Gu
Nakajima, Miyako
Taniguchi, Yoshio
We investigate the effects of volatile additives in solutions used to prepare thin-film transistors (TFTs) of regioregular poly(3-hexylthiophene) (P3HT). We use the additives trifluoromethylbenzene (TFMB) and methylcyclohexane (MCH) because they are poor solvents for P3HT. The additives improve the performance of the resulting TFTs when the boiling point (T(b)) of the major solvent, carbon tetrachloride, is lower than that of the additive. The maximum mobility is (4.0 +/- 60.9) x 10(-2) cm(2)V(-1)s(-1), which is 6.1 times larger than that of TFTs prepared without TFMB or MCH added to the solution; the on/off ratio and the subthreshold slope were also improved. The relative T(b) of the solvent and the additive affected the film formation with the amount of TFMB or MCH remaining at the final stage of thin film deposition influencing the precipitation of P3HT aggregates. (C) 2011 American Institute of Physics. [doi:10.1063/1.3553878]
Article
JOURNAL OF APPLIED PHYSICS. 109(5):54504 (2011)
journal article
AMER INST PHYSICS
2011-03-01
application/pdf
JOURNAL OF APPLIED PHYSICS
5
109
0021-8979
AA00693547
https://soar-ir.repo.nii.ac.jp/record/13421/files/Effects_volatile_additives_solutions.pdf
eng
10.1063/1.3553878
https://doi.org/10.1063/1.3553878
Copyright© 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 109, 054504 (2011) and may be found at https://doi.org/10.1063/1.3553878 .