Organic thin-film transistors with bilayer of rubbed and evaporated hydrocarbon-based acene as active layer

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• 作者：Shunpei Funada ; Safizan Shaari ; Shigeki Naka ; Hiroyuki Okada ; ^{okada@eng.u-toyama.ac.jp}
• 关键词：Organic transistor
• 刊名：Materials Science in Semiconductor Processing
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：60
• 期：Complete
• 页码：1-4
• 全文大小：1289 K
• 卷排序：60

文摘

We have investigated organic thin-film transistors (OTFTs) with a bilayer of rubbed and evaporated hydrocarbon-based acene 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) as an active layer. Using a rubbing process after spin-coating the C8-BTBT, crystallinity of the C8-BTBT thin film was improved and resultant superior OTFT characteristics were realized. We obtained a field-effect mobility of 1.6 cm2/Vs, a threshold voltage of −8.2 V, an on-off ratio of 106, and a subthreshold swing of 55 mV/decade.