2025 SMSI Bannerklein

IP3 - Patterned Absorption Layers for Pyroelectric Detectors with Higher Sensitivity

Event
SENSOR+TEST Conferences 2009
2009-05-26 - 2009-05-28
Congress Center Nürnberg
Band
Proceedings OPTO 2009 & IRS² 2009
Chapter
IRS² Poster Session
Author(s)
Y. Querner, V. Norkus, G. Gerlach - Technische Universität Dresden, Dresden, Germany
Pages
285 - 288
DOI
10.5162/irs09/ip3
ISBN
978-3-9810993-6-2
Price
free

Abstract

A basic requirement for achieving a high sensitivity of pyroelectric detectors is the effective conversion of incident infrared radiation into heat. In many applications absorption layers of different metals like silver, gold, nickel chrome, or platinum are used to increase the sensitivity of the pyroelectric sensor. Also, polymer coatings with special filler materials like carbon black are widely used for increasing the absorption properties in the infrared range. These methods have several disadvantages e.g. some of the layers are not mechanically stable, are not resistant to solvents and are not long-term stable, others require a time-consuming preparation. This study investigates the ability to pattern polymer layers 3-dimensionally on the one hand in order to improve the optical properties of the absorption layer and on the other hand to avoid the above mentioned problems.

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