期刊
ORGANIC ELECTRONICS
卷 13, 期 2, 页码 264-272出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2011.11.012
关键词
Small-molecule organic crystals; Plate-like crystals; Organic field-effect transistor arrays; Solution-processed; Patterning; Uniformity
资金
- Ministry of Education, Culture, Sport, Science and Technology of Japan [218505]
Solution-processed organic crystals are important in field-effect transistors because of their highly ordered molecular packing and ease of device fabrication. For practical applications, the patterning of organic crystal transistor arrays is critical. However, uniformity, which concerns the variation in electrical performance among devices fabricated simultaneously on the same substrate, is a common consideration in the commercial applications of the solution-processed organic crystal transistor arrays. Here, a simple approach for fabricating field-effect transistor arrays based on organic plate-like crystals is reported. Through this method, a direct spin-coating process from a mixture solution of organic semiconductor and polymer dielectric can produce organic plate-like crystals. The grain size of the crystals is observed to be hundreds of micrometers. By controlling the concentrations of the active materials, the transistor arrays exhibit high uniformity and good device performance. The results presented in this work promise that this approach is a comparable technology to hydrogenated amorphous silicon-based FETs and is a great candidate for practical applications in electronic devices. (C) 2011 Elsevier B. V. All rights reserved.
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