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 SM ISO690:2012DUMCHENKO, Dumitru, HUANG, Chen-Tai, HUANG, Ying-Sheng, FIRSZT, Franciszek, ŁȨGOWSKI, Stanisław, MECZYNSKA, Hanna, ZAKRZEWSKI, Jacek, TIONG, Kwong-Kaw. Characterization of Zn0.95-xBexMn0.05Se mixed crystals by photoluminescence and contactless electroreflectance. In: Physica Status Solidi (C) Current Topics in Solid State Physics, 2010, vol. 7, pp. 1460-1462. ISSN 1862-6351. DOI: https://doi.org/10.1002/pssc.200983160 |
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 Physica Status Solidi (C) Current Topics in Solid State Physics |
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| Volumul 7 / 2010 / ISSN 1862-6351 /ISSNe 1610-1642 | |
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| DOI:https://doi.org/10.1002/pssc.200983160 | |
| Pag. 1460-1462 | |
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Temperature-dependent photoluminescence (PL) and contactless electroreflectance (CER) measurements of Zn0.95-xBe xMn0.05Se mixed crystals with different Be content (0 ≤ x ≤ 0.26) grown by the modified high pressure Bridgman method has been carried out in the temperature range 15-300 K. The peak positions of band-edge exciton features in the PL spectra are slightly shifted towards lower energies as compared to the corresponding transition energies obtained from CER data. The observed increases of the CER-PL shift with the increasing of Be content are explained by the increasing compositional disorder causing the smearing of the band-edge energies. The excitonic line broadening for the samples with larger Be/Zn ratio are attributed in part to the alloy scattering effects and also to the poorer crystalline quality of the samples with higher content of Be. |
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| Cuvinte-cheie Excitons, Growth from melts, photoluminescence, reflectivity, ZnBeMnSe |
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