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Modified triglycine sulphate (TGS) single crystals for pyroelectric infrared detector applicationsEffects of caesium and cerium, L-alanine, and caesium plus L-alanine impurities on ferroelectric and pyroelectric properties of TGS crystals are investigated. Dielectric constant and loss, pyroelectric coefficient, spontaneous polarization, and coercive field measurements of these modified crystals, as a function of temperature, are reported. Caesium and cerium did not affect the electrical properties of TGS crystals significantly, whereas L-alanine- and, especially, Cs + L-alanine-doped TGS crystals exhibited promising improvements in pyroelectric properties, up to 48 C, as compared to pure TGS crystals.
Document ID
19920058463
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Banan, M.
(NASA Headquarters Washington, DC United States)
Lal, R. B.
(NASA Headquarters Washington, DC United States)
Batra, Ashok
(Alabama Agricultural and Mechanical University Normal, United States)
Date Acquired
August 15, 2013
Publication Date
May 1, 1992
Publication Information
Publication: Journal of Materials Science
Volume: 27
Issue: 9 Ma
ISSN: 0022-2461
Subject Category
Solid-State Physics
Accession Number
92A41087
Funding Number(s)
CONTRACT_GRANT: NAS8-32945
Distribution Limits
Public
Copyright
Other

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