Nature of Blue Anti-Stokes Luminescence in ZnSe:Cr |
| V.Yu. Ivanov Dnepropetrovsk State University, Dnepropetrovsk, Ukraine Yu.G. Semenov Institute of Semicond. Physics, Ukrainian Acad. Sciences, Kiev, Ukraine M. Surma and M. Godlewski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland |
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| The mechanism of the anti-Stokes photoluminescence in ZnSe:Cr is discussed. It is shown that the two-step ionization transitions of Cr(2+ ↔ 1+) result in appearance of the blue anti-Stokes photoluminescence of ZnSe:Cr. There are also some indications that the Auger type co-operative process can contribute to the photoluminescence excitation. |
| DOI: 10.12693/APhysPolA.88.743 PACS numbers: 78.55.Et, 71.55.Gs, 76.30.Fc |