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On Some Properties of TlInS 2 (Se 2 , Te 2 ) Single Crystals
Author(s) -
Guseinov G. D.,
Mooser E.,
Kerimova E. M.,
Gamidov R. S.,
Alekseev I. V.,
Ismailov M. Z.
Publication year - 1969
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.19690340103
Subject(s) - photoconductivity , photoelectric effect , tetragonal crystal system , materials science , band gap , maxima , wavelength , infrared , condensed matter physics , electrical resistivity and conductivity , crystallography , analytical chemistry (journal) , optics , optoelectronics , crystal structure , chemistry , physics , art , chromatography , quantum mechanics , performance art , art history
The results of studies on the structure and physical properties of grown TlInS 2 (Se 2 , Te 2 ) single crystals are presented. Based on an X‐ray investigation the parameters of the tetragonal cells of these crystals have been determined. The electric conductivity and the Hall effect for the TlInS 2 (Se 2 , Te 2 ) crystals have been measured over a wide temperature range. It has been revealed that in the purest crystals of the above compounds the mobility obeys the usual T −3/2 law. Some data on the photoelectric and optical properties of these materials are also reported. These crystals are shown to be photoconductors in the infrared and visible regions of the spectrum. The photoconductivity maxima for the TlInS 2 , TlInSe 2 , and TlInTe 2 crystals correspond to the wavelengths of 0.525, 0.87, and 1.36 μm, respectively. In photoconductivity the respective values for the forbidden gap width are 2.3, 1.07, and 0.68 eV. From the experimental data obtained the main characteristic parameters of the crystals have been calculated.