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Long-term evolution of luminescent properties in CdI₂ crystals

Fresh and aged melt-grown or gas-phase grown CdI₂ crystals are studied by means of low-temperature photoluminescence spectroscopy. Noticeable transformations of emission spectra are observed after long-term aging. The formation of nanostructures containing cadmium oxide and cadmium hydroxide as well...

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Bibliographic Details
Main Authors: Karbovnyk, I., Bolesta, I., Rovetskyi, I., Lesivtsiv, V., Shmygelsky, Ya., Velgosh, S., Popov, A.I.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2016
Series:Физика низких температур
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Online Access:http://dspace.nbuv.gov.ua/handle/123456789/129196
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Summary:Fresh and aged melt-grown or gas-phase grown CdI₂ crystals are studied by means of low-temperature photoluminescence spectroscopy. Noticeable transformations of emission spectra are observed after long-term aging. The formation of nanostructures containing cadmium oxide and cadmium hydroxide as well as the changes in local surrounding of iodine atoms and the possible growth of polytypic modifications of CdI₂ are taken into account when considering the diversity of optical spectra.