Mechanisms of radiative and nonradiative recombination in ZnSe:Cr and ZnSe:Fe
Примесные состояния в полупроводниках с переходными элементами
DOI (Low Temperature Physics):
https://doi.org/10.1063/1.1820019Ключові слова:
PACS: 42.55.Px, 71.55.Gs, 78.55.EtАнотація
Possible applications of ZnSe:Cr in optoelectronics are discussed. It is shown that 2+ to 1+ photo-ionization of chromium results in efficient pumping of Cr2+ intrashell emission and in energy up-conversion from green to blue. A distinct difference in efficiency of the energy up-conversion is observed between chromium and iron doped ZnSe samples. This difference we relate to a very efficient Auger mechanism of photoluminescence quenching in Fe-doped samples. We further demonstrate an anticorrelation of intensity of mid-infrared Cr emission and up-converted blue emission of ZnSe.
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2004-09-21
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M. Godlewski, M. Surma, V.Yu. Ivanov, and T.P. Surkova, Mechanisms of radiative and nonradiative recombination in ZnSe:Cr and ZnSe:Fe: Примесные состояния в полупроводниках с переходными элементами, Low Temp. Phys. 30, (2004) [Fiz. Nizk. Temp. 30, 1187-1193, (2004)] DOI: https://doi.org/10.1063/1.1820019.
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