SCHOTZ, GF and SEDLMEIER, W and LINDNER, M and GEBHARDT, W (1995) THE PRESSURE-DEPENDENCE OF THE INTRAIMPURITY ABSORPTION AND THE CHARGE-TRANSFER PROCESS OF ZNS-NI AND ZNSE-NI. JOURNAL OF PHYSICS-CONDENSED MATTER, 7 (4). pp. 795-802. ISSN 0953-8984,
Full text not available from this repository.Abstract
The absorption spectra of ZnS:Ni and ZnSe:Ni were measured at 100 K under hydrostatic pressure up to 10 GPa. Two kinds of optical transition were investigated: (i) the d-d transitions between crystal field levels of Ni2+ in the tetrahedral held of the host lattice and (ii) a charge transfer band that occurs when an electron is transferred from the valence band to the Ni2+ ion. The pressure dependence of the crystal field parameter Dq and of the Racah parameter B were determined and a revised assignment of the d-d transitions was obtained. The charge transfer can be considered as a deep-acceptor transition. In this case the Ni acceptor level may be used as an energy reference, which enabled us to determine the hydrostatic deformation potential of the valence band.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HYDROSTATIC-PRESSURE; SEMICONDUCTORS; IMPURITIES; EDGE; PHOTOIONIZATION; TRANSITION; SPECTRA; NICKEL; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52791 |
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