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Vacuum-processed polyethylene as a dielectric for low operating voltage organic field effect transistors
Date
2012-05-01
Author
Kanbur, Yasin
Irimia-Vladu, Mihai
Glowacki, Eric D.
Voss, Gundula
Baumgartner, Melanie
Schwabegger, Guenther
Leonat, Lucia
Ullah, Mujeeb
Sarica, Hizir
ERTEN ELA, ŞULE
Schwoediauer, Reinhard
Sitter, Helmut
Kucukyavuz, Zuhal
Bauer, Siegfried
Sariciftci, Niyazi Serdar
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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We report on the fabrication and performance of vacuum-processed organic field effect transistors utilizing evaporated low-density polyethylene (LD-PE) as a dielectric layer. With C-60 as the organic semiconductor, we demonstrate low operating voltage transistors with field effect mobilities in excess of 4 cm(2)/Vs. Devices with pentacene showed a mobility of 0.16 cm(2)/Vs. Devices using tyrian Purple as semiconductor show low-voltage ambipolar operation with equal electron and hole mobilities of similar to 0.3 cm(2)/Vs. These devices demonstrate low hysteresis and operational stability over at least several months. Grazing-angle infrared spectroscopy of evaporated thin films shows that the structure of the polyethylene is similar to solution-cast films. We report also on the morphological and dielectric properties of these films. Our experiments demonstrate that polyethylene is a stable dielectric supporting both hole and electron channels.
Subject Keywords
Dielectric polymer
,
Vacuum processed polymer
,
Evaporable polyethylene
,
Low-operating voltage field effect transistors
URI
https://hdl.handle.net/11511/68599
Journal
ORGANIC ELECTRONICS
DOI
https://doi.org/10.1016/j.orgel.2012.02.006
Collections
Graduate School of Natural and Applied Sciences, Article