Formation of Luminescence Centers in Oxygen-Deficient Cerium Oxide Nanocrystals

Maksimchuk, P.; Masalov, A.; Seminko, V.; Malyukin, Yu.

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Title	Formation of Luminescence Centers in Oxygen-Deficient Cerium Oxide Nanocrystals
Authors	Maksimchuk, P. Masalov, A. Seminko, V. Malyukin, Yu.
ORCID
Keywords	Cerium oxide nanoparticles Oxygen vacancies High temperature treatment
Type	Conference Papers
Date of Issue	2012
URI	http://essuir.sumdu.edu.ua/handle/123456789/35446
Publisher	Sumy State University
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Citation	Formation of Luminescence Centers in Oxygen-Deficient Cerium Oxide Nanocrystals / P. Maksimchuk, A. Masalov, V. Seminko, Y. Malyukin // Nanomaterials: Applications & Properties (NAP-2012) : 2-nd International conference, Alushta, the Crimea, September 17-22, 2012 / Edited by: A. Pogrebnjak. - Sumy : Sumy State University, 2012. - V. 1, No4. - 04RES06
Abstract	In this work the peculiarities of oxygen vacancies formation in cerium oxide nanoparticles for different external influences have been investigated by spectroscopic methods. The features of oxygen vacancies and therefore non-stoichiometric cerium oxide formation in CeO2 nanocrystals depending on the atmosphere of high temperature treatment were investigated. Stimulation of oxygen vacancies formation in reducing and neutral atmospheres was revealed. Occurrence of two different luminescence centers (viz. the charge-transfer complexes formed by Ce4+ and O2- ions, and Ce3+ ions stabilized by vacancies) after cerium oxide nanoparticles annealing in a neutral atmosphere has been observed. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35446
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