Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x

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Title	Spectroscopically Detected Formation of Oxygen Vacancies in Nano-Crystalline CeO2 – x
Authors	Maksimchuk, P.O. Masalov, A.A. Malyukin, Yu.V.
ORCID
Keywords	Cerium oxide nanoparticles Oxygen vacancies High temperature treatment
Type	Article
Date of Issue	2013
URI	http://essuir.sumdu.edu.ua/handle/123456789/30940
Publisher	Сумський державний університет
License	Copyright not evaluated
Citation	P.O. Maksimchuk, A.A. Masalov, Yu.V. Malyukin, J. Nano- Electron. Phys. 5 No 1, 01004 (2013)
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/123456789/30940
Appears in Collections:	Журнал нано- та електронної фізики (Journal of nano- and electronic physics)