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
Published in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2016-07, Vol.42 (7), p.594-596
Main Authors: Karbovnyk, I., Bolesta, I., Rovetskyi, I., Lesivtsiv, V., Shmygelsky, Ya, Velgosh, S., Popov, A. I.
Format: Article
Language:English
Subjects:
Cadmium
Crystal growth
Emission analysis
Emission spectra
Iodine
Optical properties
Photoluminescence
Spectrum analysis
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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.
ISSN:1063-777X
1090-6517
DOI:10.1063/1.4959019