The manifestation of local vibrations in photoluminescence spectra of ZnO : Fe3+
Sokolov V. I. 1, Gruzdev N. B. 1, Menshenin V. V. 1, Kiryakov A.N.2, Zatsepin A. F. 2, Vazhenin V. A. 2, Emelchenko G. A.3
1M.N. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
2Ural Federal University after the first President of Russia B.N. Yeltsin, Yekaterinburg, Russia
3Osipyan Institute of Solid State Physics RAS, Chernogolovka, Russia
Email: visokolov@imp.uran.ru, nbgruzdev@mail.ru, menshenin@imp.uran.ru, a.f.zatsepin@urfu.ru, vladimir.vazhenin@urfu.ru, emelch@issp.ac.ru

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In this paper photoluminescense spectra and EPR-signals of ZnO single crystals, doped with manganese and containing (from EPR data) uncontrolled impurity of iron, were investigated. At the temperature of 4.5 K in photoluminescense spectrum the band in energy interval of 1.55-1.8 eV (12493-14508 cm-1) was observed. This band contains some intensive lines; these lines are caused by Fe3+ ions (d5-configuration). The first and most intensive line at the energy of 1.79 eV corresponds to irradiative transition 4T1-> 6A1 in Fe3+ ions. The other peaks are electronic-vibrational structure. This structure may be caused by force interaction in deformed Fe3+-4O2- cluster. Keywords: zinc oxide, Fe3+ impurity, photoluminescence, EPR. DOI: 10.61011/EOS.2023.04.56359.52-22
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