Abstract
We propose an extension of the periodic temperature change (Chynoweth) technique for the measurement of pyroelectric coefficient in the case of a pyroelectric thin film on an insulating (non-conductive) substrate. The modified technique adequately determines the pyroelectric coefficient of the film if its thickness is known. The method determines the pyroelectric coefficient of the substrate even if it is much smaller than that of the film. The method overestimates the thickness of the pyroelectric film and can be used as an estimate only. If the thickness of the pyroelectric film is not known, the method gives a product of the pyroelectric coefficient of the film and its thickness.
| Original language | English |
|---|---|
| Pages (from-to) | 41-49 |
| Number of pages | 9 |
| Journal | Ferroelectrics |
| Volume | 472 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2014 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:Copyright © 2014 Taylor & Francis Group, LLC.
Funding
The authors wish to thank the Minerva Foundation, the Israel Ministry of National Infrastructure and the US-Israel Binational Science Foundation for funding this research. I.L. specifically wishes to acknowledge the Nancy and Stephen Grand Research Center for Sensors and Security. The research is also made possible in part by the generosity of the Harold Perlman Family.
| Funders | Funder number |
|---|---|
| Israel Ministry of National Infrastructure | |
| Minerva Foundation | |
| United States-Israel Binational Science Foundation |
Keywords
- Pyroelectric effect
- surface pyroelectricity
- thin films