September 2013

Journal

High-Performance Organic Field-Effect Transistors with Dielectric and Active Layers Printed Sequentially by Ultrasonic Spraying

By:
Shao, Ming ; Sanjib, Das; Chen, Jihua ; Keum, Jong K; Ivanov, Ilia N; Gu, Gong; Geohegan, David B; Xiao, Kai
Journal Name:
Journal of Materials Chemistry
Page Number:
4384-4390
Volume:
1
Issue Number:
21
Publication Date:
September 9, 2013
View DOI Listing:
https://doi.org/10.1039/c3tc30535j

Abstract

High-performance, flexible organic field-effect transistors (OFETs) are reported with PVP dielectric and TIPS-PEN active layers sequentially deposited by ultrasonic spray-coating on plastic substrate. OFETs fabricated in ambient air with a bottom-gate/top-contact geometry are shown to achieve on/off ratios of >104 and mobilities as high as 0.35 cm2/Vs. These rival the characteristics of the best solution-processible small molecule FETs fabricated by other fabrication methods such as drop casting and ink-jet printing.