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Organic FETs with HWCVD silicon nitride as a passivation layer and gate dielectric
, P. Srinivas, S. Shriram, N.S. Kale, S.G. Mhaisalkar, V. Ramgopal Rao
Published in
2008
Volume: 516
   
Issue: 5
Pages: 770 - 772
Abstract
This paper reports the use of hot-wire chemical vapour deposited (HWCVD) Silicon nitride as a passivation layer for Organic Field Effect Transistors (OFETs). Firstly, the degradation study of the OFETs is done with time. A thin (10-20 nm) layer of silicon nitride is deposited on the OFETs, at a low temperature (< 90 °C) by HWCVD process, to passivate them from the ambient. Our results show that this technique is very effective in improving the stability of the organic semiconductors (Poly-3-hexyl thiophene (P3HT) is used as a test case in this study). This HWCVD deposited nitride can also be used as a gate dielectric material for the study of OFETs because of its higher dielectric constant and significantly less hydrogen content. © 2007 Elsevier B.V. All rights reserved.
About the journal
JournalThin Solid Films
ISSN00406090