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Photoionization of cobalt impuritiesin zinc oxide
- 1.0449087 - FZÚ 2016 RIV DE eng J - Journal Article
Ivanov, V. - Godlewski, M. - Dejneka, Alexandr
Photoionization of cobalt impuritiesin zinc oxide.
Physica Status Solidi B. Roč. 252, č. 9 (2015), s. 1988-1992. ISSN 0370-1972. E-ISSN 1521-3951
R&D Projects: GA MŠMT(CZ) LM2011029; GA ČR GAP108/12/1941
Grant - others:SAFMAT(XE) CZ.2.16/3.1.00/22132
Institutional support: RVO:68378271
Keywords : absorption band * cobalt * photoionization * electron spin resonance * pulsed mode * ZnO
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.522, year: 2015
Electron Spin Resonance investigations allow to attribute a broad absorption band below the band-to-band transition of ZnO:Co to photoionization transitions of Co-ions. This absorption, with the onset at about 2.4–2.6 eV, is due to cobalt recharging, as concluded from the photo-ESR and pulsed ESR experiments. In these experiments light sensitive ESR signals of Co2þ and shallow donor are observed. Their response to light favors cobalt 2þ to 3þ photoionization.
Permanent Link: http://hdl.handle.net/11104/0250673
Number of the records: 1