Application of a conductive polymer to self-absorbing ferroelectric polymer pyroelectric sensors

被引:24
作者
Setiadi, D
He, Z
Hajto, J
Binnie, TD
机构
[1] Napier Univ, Sch Engn, Edinburgh EH14 1DJ, Midlothian, Scotland
[2] Napier Univ, Dept Appl Chem & Phys Sci, Edinburgh EH10 5DT, Midlothian, Scotland
基金
英国工程与自然科学研究理事会;
关键词
pyroelectric sensor; conductive polymer; PVDF; PEDT/PSS;
D O I
10.1016/S1350-4495(99)00017-1
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
This paper presents application of a conductive polymer to a self-absorbing pyroelectric sensor. The pyroelectric sensor is a free standing thermal infrared detector. It consists of a conductive polymer (PEDT/PSS) as an absorber layer and front electrode, a PVDF film as the pyroelectric material and a Ni-Al metal film as a reflector layer and rear electrode. Theoretical analysis of the infra red absorptivity of this structure shows that a selective, self-absorbing pyroelectric sensor with an absorptance of up to 90% is feasible. The conductive polymer, PEDT/PSS with added organic binders, is coated on PVDF film using both spin-coating and solution-casting techniques. The deposition technology of the conductive polymer is shown to be a non-critical process with a high reproducibility and compatible with PVDF film. The measured response of this PVDF pyroelectric sensor is shown to be 10 times higher than that of a commercially available PVDF film with thin nickel aluminium front and back electrodes. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:267 / 278
页数:12
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