Radiative d–d transitions at tungsten centers in II–VI semiconductors

Journal Article · Wed Mar 15 00:00:00 EDT 2017 · Semiconductors

DOI:https://doi.org/10.1134/S1063782617030253· OSTI ID:22649610

Krivobok, V. S.; Pruchkina, A. A. ^[1]

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1. Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

The luminescence spectra of W impurity centers in II–VI semiconductors, specifically, ZnSe, CdS, and CdSe, are studied. It is found that, if the electron system of 5d (W) centers is considered instead of the electron system of 3d (Cr) centers, the spectral characteristics of the impurity radiation are substantially changed. The electron transitions are identified in accordance with Tanabe–Sugano diagrams of crystal field theory. With consideration for the specific features of the spectra, it is established that, in the crystals under study, radiative transitions at 5d W centers occur between levels with different spins in the region of a weak crystal field.

• OSTI ID: 22649610
• Journal Information: Semiconductors, Vol. 51, Issue 3; Other Information: Copyright (c) 2017 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7826
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CADMIUM SELENIDES
CADMIUM SULFIDES
CRYSTAL FIELD
CRYSTALS
ELECTRONS
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
FIELD THEORIES
LUMINESCENCE
SEMICONDUCTOR MATERIALS
SPIN
TUNGSTEN
ZINC SELENIDES