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

Setiadi, D.; He, Z.; Hajto, J.; Binnie, T.D.

Abstract

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.

Citation

Setiadi, D., He, Z., Hajto, J., & Binnie, T. (1999). Application of a conductive polymer to self-absorbing ferroelectric polymer pyroelectric sensors. Infrared Physics and Technology, 40(4), 267-278. https://doi.org/10.1016/s1350-4495%2899%2900017-1

• Journal Article Type: Article
• Acceptance Date: Jun 1, 1999
• Online Publication Date: Jul 6, 1999
• Publication Date: 1999-08
• Deposit Date: Dec 9, 2019
• Journal: Infrared Physics & Technology
• Print ISSN: 1350-4495
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 40
• Issue: 4
• Pages: 267-278
• DOI: https://doi.org/10.1016/s1350-4495%2899%2900017-1
• Keywords: Pyroelectric sensor, Conductive polymer, PVDF, PEDT/PSS
• Public URL: http://researchrepository.napier.ac.uk/Output/950991