Optical and transport properties of Fe-doped Cd x Hg1−x Se (x = 0.35)

The optical and transport properties of Fe-doped Cd x Hg1-x Se crystals with a midgap Fe level have been studied. The results demonstrate that Fe ions influence both the optical and transport properties of Cd x Hg1-x Se < Fe > . The observed optical absorption bands are due to a donor Fe level...

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Bibliographic Details
Published in:Inorganic materials 2007-05, Vol.43 (5), p.466-470
Main Authors: Paranchich, S. Yu, Paranchich, L. D., Makogonenko, V. N., Andriichuk, M. D., Romanyuk, O. S., Mel’nichuk, T. A., Tanasyuk, Yu. V.
Format: Article
Language:English
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Summary:The optical and transport properties of Fe-doped Cd x Hg1-x Se crystals with a midgap Fe level have been studied. The results demonstrate that Fe ions influence both the optical and transport properties of Cd x Hg1-x Se < Fe > . The observed optical absorption bands are due to a donor Fe level in the band gap, with a depth E Fe = 0.21 eV, and to band-band transitions. Thermal anneals in Hg and Se vapors have different effects on the carrier concentration and mobility in the crystals. The effect of annealing on the transport properties of the Fe-doped crystals differs from that for undoped crystals and is governed by the state of point defects.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168507050044