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X‐ray, photo‐ESR and optical spectroscopy studies of ZnS x Se 1− x solid solutions doped with Co
Author(s) -
Surkova T. P.,
Galakhov V. R.,
Godlewski M.,
Świątek K.
Publication year - 2004
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.200304258
Subject(s) - x ray photoelectron spectroscopy , doping , impurity , valence band , x ray , valence (chemistry) , materials science , ion , semiconductor , spectroscopy , solid solution , analytical chemistry (journal) , alloy , emission spectrum , x ray spectroscopy , chemistry , spectral line , crystallography , band gap , nuclear magnetic resonance , physics , optoelectronics , optics , metallurgy , organic chemistry , quantum mechanics , chromatography , astronomy
Experimental studies of X‐ray photoelectron and Co L α X‐ray emission spectra of the ZnS:Co semiconductor were carried out. It was established that Co ions are in a Co 2+ configuration and that the Co 3 d impurity states are localized above the top of the valence band by 1.0 ± 0.2 eV. It was found that the covalency reduction factor for Co 2+ defect changes through the alloy from 0.62 in ZnSe lattice to 0.59 in ZnS. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)