以苝苯亞醯胺衍生物製作具大氣穩定性之N型有機微米帶電晶體

Abstract

本研究使用溶液方式合成N,N′-bis[2-(4-fluoro-phenyl)-ethyl]- 3,4,9,10-perylenetetradicarboximide (4FPEPTC)單晶微米帶。以單根4FPEPTC微米帶所製備的場效電晶體具有N型半導體特性，其載子遷移率和電流開關比各為1.89×10^-5 cm^2/Vs、10^2~10^3。4FPEPTC微米帶電晶體放置在一般大氣環境下超過150天，其電流開關比仍保持在10^3以上，具有不錯的大氣穩定性。為提升輸出電流，利用拉伸接觸轉移法獲得高度同向性排列的4FPEPTC微米帶，同時增加橋接在電極上微米帶的數量。

This study use solution-phase to synthesis N,N′-bis[2-(4-fluoro-phenyl)- ethyl]- 3,4,9,10-perylenetetradicarboximide (4FPEPTC) single crystal microribbons. Organic field effect transistors based on single 4FPEPTC microribbon show n-channel field effect behavior. The device based on single 4FPEPTC microribbon, the mobility and On/Off current ratio are 1.89×10^-5 cm^2/Vs and 10^2 ~ 10^3, respectively. we have kept 4FPEPTC microribbons transistors under ambient air for over 150 days. The On/Off current ratio remain over 10^3, demonstrating good air stability. This study use stretched contact printing not only to obtain highly aligned 4FPEPTC microribbons, but also to increase the amount of 4FPEPTC microribbons bridging the two electrodes.