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Excitonic spectra and energy band structure of ZnAl2Se4 crystals

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dc.contributor.author SYRBU, N. N.
dc.contributor.author ZALAMAI, V. V.
dc.contributor.author TIRON, A. V.
dc.contributor.author TIGINYANU, I. M.
dc.date.accessioned 2024-01-31T10:11:34Z
dc.date.available 2024-01-31T10:11:34Z
dc.date.issued 2015
dc.identifier.citation STAMOV, I. G., ZALAMAI, V. V., … TIRON, A. V. Excitonic spectra and energy band structure of ZnAl2Se4 crystals. In: Optical Materials, 2015, vol. 49, pp. 319-324. ISSN 0925-3467. en_US
dc.identifier.issn 0925-3467
dc.identifier.uri https://doi.org/10.1016/j.optmat.2015.09.035
dc.identifier.uri http://repository.utm.md/handle/5014/26138
dc.description Acces full text - https://doi.org/10.1016/j.optmat.2015.09.035 en_US
dc.description.abstract Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (А, В and С) were determined. The main parameters of excitons and more precise values of energy intervals V1(Γ7)–C1(Γ6), V2(Γ6)–C1(Γ6), and V3(Γ7)–C1(Γ6) were estimated. Values of splitting due to crystal field and spin–orbital interaction were calculated. Effective masses of electrons (mC1∗) and holes (mV1∗, mV2∗, mV3∗) were estimated. Reflection spectra contours in excitonic region were calculated using dispersion equations. Optical functions for E > Eg from measured reflection spectra were assigned on the base of Kramers–Kronig relations. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Optical Materials;2015, vol. 67, nr. 2
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject chalcogenide semiconductors compounds en_US
dc.subject excitons en_US
dc.subject band structures en_US
dc.subject reflection spectra en_US
dc.subject transmission spectra en_US
dc.subject Kramers–Kronig analysis en_US
dc.title Excitonic spectra and energy band structure of ZnAl2Se4 crystals en_US
dc.type Article en_US


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