Effect of iron impurities on the photoluminescence and photoconductivity of ZnSe crystals in the visible spectral region
- Odessa National University (Ukraine)
- 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, Vol. 45, Issue 9; Other Information: Copyright (c) 2011 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
- Country of Publication:
- United States
- Language:
- English
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