Impurity- and defect-related luminescence of ZnSe:Fe at Low Temperatures
| Autor: | V. P. Kalinushkin, D. F. Aminev, V. S. Krivobok, A. A. Gladilin, Evgeny Onischenko, S. I. Chentsov, A. A. Pruchkina, V. V. Ushakov |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Doping Analytical chemistry chemistry.chemical_element Zinc Thermal diffusivity 01 natural sciences Electronic Optical and Magnetic Materials 010309 optics chemistry.chemical_compound chemistry Impurity 0103 physical sciences Zinc selenide Crystallite Luminescence Line (formation) |
| Zdroj: | Bulletin of the Lebedev Physics Institute. 46:238-242 |
| ISSN: | 1934-838X 1068-3356 |
| DOI: | 10.3103/s1068335619070078 |
| Popis: | Polycrystalline zinc selenide is doped with an iron impurity to a concentration of ~1019 cm−3 in a zinc vapor atmosphere by the thermal diffusion method, and the distribution profile of optically active iron Fe2+ is obtained. The effect of the Fe2+ concentration on impurity-and defect-related ZnSe luminescence spectra at low temperatures is determined. In the range of 1.28—1.31 eV, a luminescence line with a decay time of ~0.341 ms is detected, with its intensity increasing in regions with Fe2+ concentration close to the maximum one. The line is attributed to the luminescence center arising due to the Fe2+ interaction with a background impurity or defect in ZnSe. |
| Databáze: | OpenAIRE |
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