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Band gap of triglycine selenate, triglycine fluorine beryllate, triglycine sulfate and its variation under γ‐irradiation
Author(s) -
Sirota N. N.,
Korina R. V.
Publication year - 1971
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19710060310
Subject(s) - triglycine sulfate , selenate , irradiation , materials science , band gap , fluorine , absorption edge , chemistry , analytical chemistry (journal) , ferroelectricity , dielectric , optoelectronics , selenium , physics , chromatography , nuclear physics , metallurgy
The band gap for three ferroelectrics (triglycine selenate, triglycine fluorine berryllate and triglycine sulfate) is determined using an optic method. A shift of self‐absorption edge towards longer wave lengths is observed when exposed to irradiation by γ rays with a dosage of ∽ (2 ÷ 7) · 10 7 r as well as corresponding decrease of band gap. The observed changes are connected with the chemical nature of the studied substances.