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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The role of oxygen vacancy in the photoluminescence property at room temperature of the CaTiO3

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Milanez, Juliana [1] ; de Figueiredo, Alberthmeiry T. [2] ; de Lazaro, Sergio [3] ; Longo, Valeria M. [2] ; Erlo, Rafael [1] ; Mastelaro, Valmor R. [4] ; Franco, Roberto W. A. [5] ; Longo, Elson [2] ; Varela, Jose A. [2]
Total Authors: 9
[1] Univ Fed Sao Carlos, Dept Quim, Lab Interdisciplinar Eletroquim & Ceram, BR-13565905 Sao Paulo - Brazil
[2] Univ Estadual Paulista, Inst Quim, Lab Interdisciplinar Eletroquim & Ceram, BR-14801970 Sao Paulo - Brazil
[3] Univ Estadual Ponta Grossa, Dept Quim, BR-84030900 Ponta Grossa, Parana - Brazil
[4] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Paulo - Brazil
[5] Univ Estadual Norte Fluminesce, Ctr Ciencia & Tecnol, BR-28013602 Rio De Janeiro - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Journal of Applied Physics; v. 106, n. 4 AUG 15 2009.
Web of Science Citations: 23

In this paper, electron paramagnetic resonance, photoluminescence (PL) emission, and quantum mechanical calculations were used to observe and understand the structural order-disorder of CaTiO3, paying special attention to the role of oxygen vacancy. The PL phenomenon at room temperature of CaTiO3 is directly influenced by the presence of oxygen vacancies that yield structural order-disorder. These oxygen vacancies bonded at Ti and/or Ca induce new electronic states inside the band gap. Ordered and disordered CaTiO3 was obtained by the polymeric precursor method. (C) 2009 American Institute of Physics. {[}DOI: 10.1063/1.3190524] (AU)

FAPESP's process: 98/14324-0 - Multidisciplinary Center for Development of Ceramic Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC