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Polymer thin film transistor without surface pretreatment on silicon nitride gate dielectric
Authors
,
P Dhagat
+6 more
HM Haverinen
M Heeney
GE Jabbour
FM Li
I McCulloch
A Nathan
Publication date
1 September 2008
Publisher
Abstract
It is well known that surface modification of the gate dielectric in organic thin film transistors (TFTs) plays an important role in device performance, often giving rise to severalfold improvements in field-effect mobility. This paper reports on solution-processed polymer TFTs with mobilities comparable to high performance counterparts despite the absence of dielectric surface pretreatment. An effective mobility of 0.1 cm2 V s was obtained with poly(2,5-bis(3-dodecylthiophene-2-yl)thieno[3,2-b]thiophene) transistors on silicon nitride gate dielectric. The results indicate that by judicious preparation of the device layers, one can mitigate the need for dielectric surface pretreatment, thereby reducing fabrication complexity without compromising TFT performance. © 2008 American Institute of Physics
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Last time updated on 15/07/2020