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Some optical properties of heavily doped cadmium selenide single crystals
Author(s) -
Da Czan Czun,
Rauluszkiewicz J.,
Wardzyński W.
Publication year - 1962
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19620021004
Subject(s) - cadmium selenide , doping , materials science , impurity , gallium , birefringence , zinc selenide , absorption (acoustics) , selenide , analytical chemistry (journal) , reflection (computer programming) , band gap , liquid nitrogen , cadmium , inorganic chemistry , optics , chemistry , optoelectronics , selenium , metallurgy , physics , organic chemistry , chromatography , quantum dot , composite material , computer science , programming language
The BURSTEIN effect is observed in cadmium selenide single crystals doped with gallium, prepared from the melt, with electron concentrations in the range 10 18 to 10 20 cm −3 . It is deduced from absorption and reflection measurements that both the energy gap and the crystald field splitting decrease with increasing electron concentration. Birefringence is found to decrease with increase of impurity concentration at room and liquid nitrogen temperatures.