Luminescence and Stimulated Emission of Polycrystalline Cu(In,Ga)Se2 Films Deposited by Magnetron-Assisted Sputtering
- Authors: Svitsiankou I.E.1, Pavlovskii V.N.1, Lutsenko E.V.1, Yablonskii G.P.1, Shiripov V.Y.2, Khokhlov E.A.2, Mudryi A.V.3, Zhivulko V.D.3, Borodavchenko O.M.3, Yakushev M.V.4
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Affiliations:
- Institute of Physics, National Academy of Sciences of Belarus
- LLC “Izovac”
- Scientific-Practical Materials Research Center, National Academy of Sciences of Belarus
- Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
- Issue: Vol 52, No 10 (2018)
- Pages: 1238-1243
- Section: Spectroscopy, Interaction with Radiation
- URL: https://journals.rcsi.science/1063-7826/article/view/204113
- DOI: https://doi.org/10.1134/S1063782618100196
- ID: 204113
Cite item
Abstract
The stimulated emission of Cu(In,Ga)Se2 alloy thin films formed by magnetron-assisted sputtering onto a sodium-fluoride layer deposited onto a molybdenum layer on a glass substrate is observed. The structural and optical parameters of the films are determined by scanning electron microscopy, local X-ray spectral microanalysis, X-ray structural analysis, and low-temperature luminescence (T = 10 K) measurements in the range of excitation levels of 1.6–75 kW cm–2 provided by nanosecond nitrogen-laser pulses. The stimulated emission threshold corresponds to ~25 kW cm–2. Comparative analysis of the emission of Cu(In,Ga)Se2 thin films suggests that the introduction of sodium results in significant improvement of the structural quality, specifically, in a decrease in the density of energy states in the band tails and in a decrease in the concentration of nonradiative-recombination centers.
About the authors
I. E. Svitsiankou
Institute of Physics, National Academy of Sciences of Belarus
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220072
V. N. Pavlovskii
Institute of Physics, National Academy of Sciences of Belarus
Author for correspondence.
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220072
E. V. Lutsenko
Institute of Physics, National Academy of Sciences of Belarus
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220072
G. P. Yablonskii
Institute of Physics, National Academy of Sciences of Belarus
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220072
V. Y. Shiripov
LLC “Izovac”
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220075
E. A. Khokhlov
LLC “Izovac”
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220075
A. V. Mudryi
Scientific-Practical Materials Research Center, National Academy of Sciences of Belarus
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220072
V. D. Zhivulko
Scientific-Practical Materials Research Center, National Academy of Sciences of Belarus
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220072
O. M. Borodavchenko
Scientific-Practical Materials Research Center, National Academy of Sciences of Belarus
Email: v.pavlovskii@ifanbel.bas-net.by
Belarus, Minsk, 220072
M. V. Yakushev
Institute of Metal Physics, Ural Branch, Russian Academy of Sciences
Email: v.pavlovskii@ifanbel.bas-net.by
Russian Federation, Yekaterinburg, 620137