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Pyroelectric response mechanism of barium strontium titanate ceramics in dielectric bolometer mode: The underlying essence of the enhancing effect of direct current bias field.
- Source :
- Applied Physics Letters; 6/17/2013, Vol. 102 Issue 24, p242911, 3p, 4 Graphs
- Publication Year :
- 2013
-
Abstract
- Pyroelectric response mechanism of Ba0.70Sr0.30TiO3 ceramics under dielectric bolometer (DB) mode was investigated by dielectric and pyroelectric properties measurement. The variations of total, intrinsic, and induced pyroelectric coefficients (ptot, pint, pind) with temperatures and bias fields were analyzed. pint plays the dominant role to ptot through most of the temperature range and pind will be slightly higher than pint above T0. The essence of the enhancing effect of DC bias field on pyroelectric coefficient can be attributed to the high value of pint. This mechanism is useful for the pyroelectric materials (DB mode) applications. [ABSTRACT FROM AUTHOR]
- Subjects :
- PYROELECTRICITY
BARIUM strontium titanate
BOLOMETERS
DIELECTRICS
TEMPERATURE
Subjects
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 102
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 88345189
- Full Text :
- https://doi.org/10.1063/1.4812195