NaNO2layers as pyroelectric radiation detectors
- 1 June 1981
- journal article
- research article
- Published by Taylor & Francis in Ferroelectrics
- Vol. 33 (1) , 243-248
- https://doi.org/10.1080/00150198108008092
Abstract
Thin NaNO2 layers on a substrate, when provided with contacts and a radiation absorbing layer, form a pyroelectric radiation detector of small heat capacity. The pyroelectric figure of merit for NaNO2 is p/εcp = 5,6 · 10−12 m/V. The frequency response at low frequencies is typical for that of a two-layer structure. At high frequencies, when the temperature wave penetrates only into the pyroelectric layers, the detector behaves as if there were no substrate present. While the frequency dependence of the penetration depth of the temperature wave causes the voltage responsivity to decrease less than proportional to ω−1, the current responsivity is observed for the same reason to increase with increasing frequency.Keywords
This publication has 5 references indexed in Scilit:
- Ferroelectric properties of thin NaNO2–layersFerroelectrics, 1981
- Thermal DetectorsPublished by Springer Nature ,1977
- Chapter 7 The Pyroelectric Detector—An UpdatePublished by Elsevier ,1977
- Pyroelectric response and D* of thin pyroelectric films on a substrateJournal of Applied Physics, 1973
- Chapter 6 The Pyroelectric DetectorPublished by Elsevier ,1970