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Open AccessArticle

P3HT Nanofibrils Thin-Film Transistors by Adsorbing Deposition in Suspension

Department of Computer Science and Electronics, Kyushu Institute of Technology, Iizuka 820-8502, Japan
Graduate School of Life Science and System Engineering, Kyushu Institute of Technology, Kitakyushu 808-0196, Japan
Author to whom correspondence should be addressed.
Materials 2019, 12(21), 3643;
Received: 24 October 2019 / Revised: 1 November 2019 / Accepted: 4 November 2019 / Published: 5 November 2019
(This article belongs to the Special Issue Organic-Semiconductor Based Devices)
A novel film preparation method utilizing polymer suspension, entitled adsorbing deposition in suspensions (ADS), has been proposed. The poly(3-hexylthiophene) (P3HT) toluene solution forms P3HT nanofibrils dispersed suspension by aging. P3HT nanofibrils are highly crystallized with sharp vibronic absorption spectra. By the ADS method, only P3HT nanofibrils in suspension can be deposited on the substrate surface without any disordered fraction from the dissolved P3HT in suspension. Formed ADS film contains only the nanostructured conjugated polymer. Fabricated polymer thin-film transistor (TFT) utilizing ADS P3HT film shows good TFT performances with low off current, narrow subthreshold swing and large on/off current ratio. View Full-Text
Keywords: poly(3-hexylthiophene); nanofibrils; suspension; thin-film transistors poly(3-hexylthiophene); nanofibrils; suspension; thin-film transistors
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Nagamatsu, S.; Ishida, M.; Miyajima, S.; Pandey, S.S. P3HT Nanofibrils Thin-Film Transistors by Adsorbing Deposition in Suspension. Materials 2019, 12, 3643.

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