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Analysis of optical spectra of V 2+ centres in ZnS and ZnSe single crystals
Author(s) -
Brik M. G.,
Kityk I. V.
Publication year - 2008
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.200743130
Subject(s) - crystal (programming language) , absorption spectroscopy , spectral line , absorption (acoustics) , single crystal , doping , field (mathematics) , chemistry , analytical chemistry (journal) , energy (signal processing) , atomic physics , materials science , crystallography , optics , physics , optoelectronics , mathematics , chromatography , astronomy , computer science , pure mathematics , programming language , quantum mechanics
Abstract A systematic spectroscopic study of V 2+ ‐doped ZnS and ZnSe single crystals (which includes crystal growth, absorption spectra measurements and combined application of the crystal field calculations and first‐principles analysis of V 2+ energy levels and absorption spectra) is reported. Detailed comparison between the calculated energy levels and experimental absorption spectra enabled the assignment of the absorption peaks. The dependence of the crystal field and covalent effects on the interionic distance is analysed qualitatively. Several existing discrepancies between various literature data concerning the order of the V 2+ energy levels (in particular, the positions of the 2 E and 4 T 1 ( 4 P) levels) are resolved. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)