Solution-processed organic single-crystalline semiconductors with a fence-like shape via ultrasound concussion

Bowen Zhang; Qijing Wang; Jianhang Guo; Mengjiao Pei; Hengyuan Wang; Sai Jiang; Eul-Yong Shin; Yong-Young Noh; Kazuhito Tsukagoshi; Yi Shi; Yun Li

doi:10.1039/C9TC06635G

Solution-processed organic single-crystalline semiconductors with a fence-like shape via ultrasound concussion†

Bowen Zhang,^a Qijing Wang,*^a Jianhang Guo,^a Mengjiao Pei,^a Hengyuan Wang,^a Sai Jiang,^a Eul-Yong Shin,^b Yong-Young Noh,^b Kazuhito Tsukagoshi,^c Yi Shi^a and Yun Li

*^a

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* Corresponding authors

^a National Laboratory of Solid-State Microstructures, School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
E-mail: yli@nju.edu.cn, qijingwang@nju.edu.cn

^b Department of Chemical Engineering, Pohang University of Science and Technology, 77 Cheongam-Ro, Nam-Gu, Pohang 37673, Republic of Korea

^c International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, Japan

Abstract

Well-aligned organic single-crystalline semiconductors are essential for practical applications in electronic devices. Here, we demonstrated dioctylbenzothienobenzothiophene (C₈-BTBT) single crystals via an ultrasound concussion-assisted solution-processing method. Organic crystalline semiconductors with a fence-like shape were achieved, where rod-like crystals were joined together along a crystalline backbone up to millimeter length, which can allow the deposited crystals to combine the features of well-aligned orientation and desirable deposition. Organic field-effect transistors (OFETs) were fabricated using the C₈-BTBT single crystals, yielding a high field-effect hole mobility up to 6.0 cm² V⁻¹ s⁻¹. Therefore, the ultrasound-assisted solution process can provide a general guide for the integration of functional materials into high performance devices.

Journal of Materials Chemistry C

Solution-processed organic single-crystalline semiconductors with a fence-like shape via ultrasound concussion†

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Solution-processed organic single-crystalline semiconductors with a fence-like shape via ultrasound concussion

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