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SM ISO690:2012 ZALAMAI, Victor, TIRON, Andrew, CRISTEA, Ecaterina, STAMOV, Ivan. Excitonic States in Brillouin Zone Center of GaSe Layered Crystals. In: IFMBE Proceedings: . 5th International Conference on Nanotechnologies and Biomedical Engineering, Ed. 5, 3-5 noiembrie 2021, Chişinău. Chişinău: Pontos, 2022, Ediția 5, Vol.87, pp. 291-297. ISSN 16800737. DOI: https://doi.org/10.1007/978-3-030-92328-0_39 |
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IFMBE Proceedings Ediția 5, Vol.87, 2022 |
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Conferința "Conference on Nanotechnologies and Biomedical Engineering" 5, Chişinău, Moldova, 3-5 noiembrie 2021 | |||||||
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DOI:https://doi.org/10.1007/978-3-030-92328-0_39 | |||||||
Pag. 291-297 | |||||||
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Optical spectra (absorption and reflection) of GaSe layered crystals were studied at room and low (10 K) temperatures. Contours of measured reflection spectra were fitted by help of dispersion equations. Photoluminescence spectra excited by 448 and 325 nm laser lines were measured at low temperatures. The observed features can be explained in the framework of model of the existence of Frenkel and Wannier-Mott excitons. |
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Cuvinte-cheie absorption, Excitonic states, Frenkel and Wannier-Mott excitons, Gallium monoselenide, optical spectroscopy |
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