Photoluminescence of CaGa2S4:Pr Polycrystals
- Authors: Tagiev B.G.1,2, Abushov S.A.1, Tagiev O.B.1,3
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Affiliations:
- Institute of Physics
- National Academy of Aviation
- Baku Branch
- Issue: Vol 120, No 3 (2016)
- Pages: 403-407
- Section: Condensed-Matter Spectroscopy
- URL: https://ogarev-online.ru/0030-400X/article/view/164536
- DOI: https://doi.org/10.1134/S0030400X16030243
- ID: 164536
Cite item
Abstract
The photoluminescence (PL) and PL excitation spectra of CaGa2S4 polycrystals doped with praseodymium are studied in the regions of the activator absorption and the fundamental absorption of the host. It is found that the PL excitation spectrum consists of two regions: broadband absorption in the range of 200-380 nm corresponding to the fundamental absorption of the host and the narrow-band absorption of the dopant in the range of 430–515 nm. The luminescence spectra are different for different excitation wave-lengths, which occurs because Pr3+ ions substitute divalent cations occupying different crystallographic positions in the host crystal lattice.
About the authors
B. G. Tagiev
Institute of Physics; National Academy of Aviation
Email: said_sabushov@physics.ab.az
Azerbaijan, Baku, AZ1143; Baku, AZ1045
S. A. Abushov
Institute of Physics
Author for correspondence.
Email: said_sabushov@physics.ab.az
Azerbaijan, Baku, AZ1143
O. B. Tagiev
Institute of Physics; Baku Branch
Email: said_sabushov@physics.ab.az
Azerbaijan, Baku, AZ1143; Baku, AZ1144
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