Pentacene-based ambipoalr organic transistors with improve n-channel characteristics using polyethylenimine as a buffer layer

P. T. Tseng, B. Y. Huang, B. R. Lin, W. Y. Chou, H. L. Cheng

研究成果: Conference contribution

摘要

In this study, we investigated pentacene-based ambipolar organic transistors using a linear polyethylenimine (LPEI) as gate dielectric buffer layer. We found that introducing an insulating LPEI layer between the pentacene active channel and the polymethylmetacrylate gate dielectric layer could enhance the n-channel electrical characteristics, such as early-on threshold voltage (Vth), sharp subthreshold swing (SS), and enlarged on/off current ratio, despite the surface of the LPEI layer disfavoring the growth of the high-quality pentacene active layer. These results were supported by frequency-dependent conductivity measurements, that is, the decreased interfacial trap density and mean interface trap time constant of the devices with the LPEI layer. In summary, the LPEI layer could improve the n-channel characteristics of pentacene-based ambipolar organic transistors to make them suitable for a vast range of potential applications.

原文English
主出版物標題AM-FPD 2017 - 24th International Workshop on Active-Matrix Flatpanel Displays and Devices
主出版物子標題TFT Technologies and FPD Materials, Proceedings
發行者Institute of Electrical and Electronics Engineers Inc.
頁面179-182
頁數4
ISBN(電子)9784990875336
出版狀態Published - 2017 八月 8
事件24th International Workshop on Active-Matrix Flatpanel Displays and Devices, AM-FPD 2017 - Kyoto, Japan
持續時間: 2017 七月 42017 七月 7

出版系列

名字AM-FPD 2017 - 24th International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, Proceedings

Other

Other24th International Workshop on Active-Matrix Flatpanel Displays and Devices, AM-FPD 2017
國家/地區Japan
城市Kyoto
期間17-07-0417-07-07

All Science Journal Classification (ASJC) codes

  • 電氣與電子工程
  • 計算機理論與數學

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