Large-Dimensional Organic Semiconductor Crystals with Poly(butyl acrylate) Polymer for Solution-Processed Organic Thin Film Transistors

Yeqing Sun; Ziyang Zhang; Kyeiwaa Asare‑Yeboah; Sheng Bi; Zhengran He

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자료유형: 학술저널

저자정보: Yeqing Sun (Dalian University of Technology) Ziyang Zhang (Columbia University) Kyeiwaa Asare‑Yeboah (Penn State Behrend) Sheng Bi (Dalian University of Technology) Zhengran He (The University of Alabama)

저널정보: 대한금속·재료학회 Electronic Materials Letters Electronic Materials Letters Vol.17 No.1

발행연도: 2021.1

수록면: 33 - 42 (10page)

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Despite solution processed organic semiconductors have attracted much research attention, the randomized crystallizationand large prevalence of grain boundary remain as a challenge to realize high performance organic electronic applications. In this work, we report the incorporation of poly(butyl acrylate) polymer additive with organic semiconductors with themediation of a solvent vapor annealing method in order to modify the nucleation and crystal growth process. As 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene) was experimented as a benchmark semiconductor, we demonstratedthat the TIPS pentacene/poly(butyl acrylate) mixture exhibits rigidly aligned crystals, large grain width and improved arealcoverage. In particular, thin film morphological characterization indicated a substantial reduction in misorientation angle byapproximately two orders of magnitude as well as a 5-fold enlargement of grain width. A grain boundary model is proposedas a theoretic basis to understand the connection between grain width and hole mobility. Bottom-gate, top-contact thin filmtransistors based on TIPS pentacene/poly(butyl acrylate) blends demonstrated enhanced hole mobility of up to 0.11 cm2/Vs.

#Poly(butyl acrylate) · TIPS pentacene · Crystal growth · Grain boundary · Organic thin film transistors · Organic electronics

참고문헌 (69)

참고문헌 신청

Choi, K. N. / 2009 / Solvent efect on the electrical properties of triisopropylsilylethynyl(TIPS)pentacene organic thin-flm transistors / IEEE Trans. Device Mater. Reliab 9:489~493

Li, X. R. / 2009 / Azeotropic binary solvent mixtures for preparation of organic single crystals / Adv. Funct. Mater 19:3610~3617

He, Z. / 2020 / Conjugated polymer controlled morphology and charge transport of small-molecule organic semiconductors / Sci. Rep 10:4344

Chai, Z. / 2019 / Solution-processed organic feld-efect transistors using directed assembled carbon nanotubes and 2, 7-dioctyl 1 benzothieno 3, 2-b 1 benzothiophene(C8-BTBT) / Nanotechnology 30:485203

Janneck, R. / 2019 / Integration of highly crystalline C8-BTBT thin-flms into simple logic gates and circuits / Org. Electron 67:64~71

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