Influence of ambient atmosphere on the electrical properties of organic thin film transistors

被引：9

作者：

Ben Chaabane, R

Ltaief, A

Kaabi, L

Ben Ouada, H

Jaffrezic-Renault, N

Davenas, J

机构：

[1] Fac Sci Monastir, Dept Phys, Lab Phys & Chim Interfaces, Monastir 5019, Tunisia

[2] Inst Natl Sci Appl & Technol, Dept Genie Phys & Instrumentat, Lab Mat Mesures & Applicat, Tunis 1080, Tunisia

[3] Ecole Cent Lyon, Ctr Genie Elect Lyon, F-69131 Ecully, France

[4] Univ Lyon 1, Lab Mat Polymeres & Biopolymeres, F-69100 Villeurbanne, France

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2006年 / 26卷 / 2-3期

关键词：

phthalocyanine; gas sensors; transient; ozone; OTFT;

D O I：

10.1016/j.msec.2005.10.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have fabricated organic thin film transistors (OTFT) using nickel phthalocyanine (NiPc) as an active layer. The organic thin films were deposited via sublimation under a secondary vacuum. The dependence of electrical characteristics on an ambient atmosphere is studied. Transient behaviour of the OTFT is also investigated showing the presence of a time delay in drain current when gate bias is applied. It is found that this time delay depends closely on the ambient atmosphere in addition with electrical field. Tests of ozone detection using NiPc based on OTFTs were carried out exhibiting a high sensitivity to ozone. We have demonstrated that electrical properties of the OTFTs are highly affected by ozone but not by oxygen. Our results show that NiPc-based OTFTs can represent a new class of ozone sensors. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：514 / 518

页数：5

共 20 条

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