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Effects of the Substrate on the Response of P(VDF-TrFE) Pyroelectric Detector

Published online by Cambridge University Press:  15 February 2011

A. Mahrane ,
M. Djafari-Rouhani ,
A. Najmi  and
D. Esteve
A. Mahrane
Affiliation:
LAAS/CNRS, 7 Av. Colonel Roche, 31077, Toulouse, France.
M. Djafari-Rouhani
Affiliation:
Lab. de Physique des solides, 118 route de Narbonne, 31000, Toulouse, France.
A. Najmi
Affiliation:
LAAS/CNRS, 7 Av. Colonel Roche, 31077, Toulouse, France.
D. Esteve
Affiliation:
LAAS/CNRS, 7 Av. Colonel Roche, 31077, Toulouse, France.
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Abstract

The thermal analysis on the response of pyroelectric detector revealed that an optimal configuration structure could be found for a certain frequency range. Thus, it appeared that the pyroelectric layer should be thick at low frequencies but it should be very thin at high frequencies. The introduction of a thermal insulator is done trying to find out a trade off between sensitivity and response time. It has been found that its influence is restricted to a certain frequency range. The optimal thickness is related to the thermal diffusion length. We noticed also that it depends very little on the configuration structure.

Keywords

IR detectionferroelectricpyroelectric sensorP(VDF-TrFE) copolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 299: Symposium C2 – Infrared Detectors--Materials, Processing, and Devices , 1994 , 297
Copyright
Copyright © Materials Research Society 1994

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References

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