Solution-processable pentacene microcrystal arrays for high performance organic field-effect transistors

被引:121
作者
Lee, Wi Hyoung
Kim, Do Hwan
Jang, Yunseok
Cho, Jeong Ho
Hwang, Minkyu
Park, Yeong Don
Kim, Yong Hoon
Han, Jeong In
Cho, Kilwon [1 ]
机构
[1] Pohang Univ Sci & Technol, Dept Chem Engn, Pohang 790784, South Korea
[2] Korea Elect Technol Inst, Informat Display Res Ctr, Gyeonggi 463816, South Korea
基金
欧洲研究理事会;
关键词
D O I
10.1063/1.2717087
中图分类号
O59 [应用物理学];
学科分类号
摘要
The authors report the fabrication of one-dimensional crystal arrays of triisopropylsilylethynyl pentacene (TIPS PEN) via simple drop casting on a tilted substrate. By pinning a solution droplet on the tilted substrate, an array of ribbon-shaped crystals aligned in the tilted direction was formed on the substrate. X-ray diffraction analysis revealed that these crystals were oriented in the crystal growth direction. A thin film transistor based on such an array of TIPS PEN crystals was found to have a high field-effect mobility of 0.3 cm(2)/V s, which results from the directed organization of the pi-conjugated molecules. (c) 2007 American Institute of Physics.
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页数:3
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