Formation of Luminescence Centers in Oxygen-Deficient Cerium Oxide Nanocrystals
Electronic Archive of Sumy State University
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Formation of Luminescence Centers in Oxygen-Deficient Cerium Oxide Nanocrystals
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| Creator |
Maksimchuk, P.
Masalov, A. Seminko, V. Malyukin, Yu. |
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| Subject |
Cerium oxide nanoparticles
Oxygen vacancies High temperature treatment |
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| Description |
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. |
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| Publisher |
Sumy State University
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| Date |
2014-05-29T11:36:27Z
2014-05-29T11:36:27Z 2012 |
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| Type |
Article
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| Identifier |
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
http://essuir.sumdu.edu.ua/handle/123456789/35446 |
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| Language |
en
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