Effect of simultaneous organic and inorganic dopants on the characteristics of triglycine sulfate (TGS) crystals

Author

Lal, R.B. ; Etminan, S. ; Batra, A.K.

Author_Institution

Dept. of Phys., Alabama A&M Univ., Huntsville, AL, USA

fYear

1991

fDate

33457

Firstpage

695

Lastpage

697

Abstract

Effects of L-alanine+nickel and L-alanine+chromium are investigated on the dielectric and pyroelectric properties of TGS crystals. The crystals were grown by temperature lowering technique. Dielectric constant and pyroelectric coefficient measurements of these crystals are reported and compared with pure and L-alanine doped crystals. TGS crystals doped with chromium plus L-alanine and nickel plus L-alanine exhibit two to three times better materials figures of merit for pyroelectric infrared detectors over pure TGS crystals and L-alanine doped crystal. The Vicker´s hardness of CrLATGS crystal was found to be two times of pure TGS crystals. Growth characteristics of these crystals are also presented

Keywords

chromium; doping profiles; ferroelectric materials; hardness; infrared detectors; nickel; organic compounds; permittivity; pyroelectric detectors; L-alanine+chromium; L-alanine+nickel; Vicker´s hardness; dielectric; dielectric constant; figures of merit; pyroelectric; pyroelectric infrared detectors; temperature lowering technique; triglycine sulfate crystals; Chromium; Crystalline materials; Crystals; Dielectric constant; Dielectric materials; Dielectric measurements; Infrared detectors; Nickel; Pyroelectricity; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on

Conference_Location

University Park, PA

Print_ISBN

0-7803-1847-1

Type

conf

DOI

10.1109/ISAF.1994.522463

Filename

522463