Effect of iron impurities on the photoluminescence and photoconductivity of ZnSe crystals in the visible spectral region

Journal Article · Thu Sep 15 04:00:00 EDT 2011 · Semiconductors

DOI:https://doi.org/10.1134/S1063782611090235· OSTI ID:22004747

Nitsuk, Yu A; Yatsun, V V ^[1]; Nasibov, A S; Shapkin, P V ^[2]

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1. Odessa National University (Ukraine)
2. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

The photoconductivity and photoluminescence of ZnSe:Fe crystals in the visible spectra region are studied. The scheme of optical transitions within Fe{sup 2+} impurity centers is established. It is shown that the high-temperature photoconductivity of ZnSe:Fe crystals is controlled by optical transitions of electrons from the {sup 5}E(F) ground state to the higher levels of excited states of Fe{sup 2+} ions, with subsequent thermal activation of the electrons to the conduction band. Efficient excitation of intracenter luminescence of ZnSe:Fe crystals is attained with light corresponding to the region of intrinsic absorption in Fe{sup 2+} ions.

• OSTI ID: 22004747
• Journal Information: Semiconductors, Journal Name: Semiconductors Journal Issue: 9 Vol. 45; ISSN SMICES; ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION
CRYSTALS
ELECTRONS
EXCITATION
EXCITED STATES
GROUND STATES
IMPURITIES
IRON
IRON IONS
PHOTOCONDUCTIVITY
PHOTOLUMINESCENCE
VISIBLE SPECTRA
ZINC SELENIDES