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Optical Energy Gap in TlSe
Author(s) -
Pickar P. B.,
Tiller H. D.
Publication year - 1968
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.19680290116
Subject(s) - tetragonal crystal system , photoconductivity , recrystallization (geology) , materials science , band gap , diffraction , lattice (music) , condensed matter physics , analytical chemistry (journal) , optoelectronics , optics , crystallography , chemistry , crystal structure , physics , geology , paleontology , chromatography , acoustics
The results of a study to characterize samples of single crystals of TlSe grown by the Bridgman‐Stockbarger and zone recrystallization techniques are given. The X‐ray diffraction patterns were indexed as a tetragonal lattice whose parameters were a = 8.02 Å and c = 7.00 Å. The absorption and transmission measurements in the region from 0.64 to 1.20 eV yield an estimate for the band gap for the indirect transition as 0.73 eV, which agrees with that obtained from photoconductivity experiments.