| dc.contributor | Unifei-Campus Itabira | |
| dc.contributor | Universidade Estadual Paulista (Unesp) | |
| dc.date.accessioned | 2018-12-11T17:26:54Z | |
| dc.date.available | 2018-12-11T17:26:54Z | |
| dc.date.created | 2018-12-11T17:26:54Z | |
| dc.date.issued | 2016-03-01 | |
| dc.identifier | Ceramics International, v. 42, n. 4, p. 4837-4844, 2016. | |
| dc.identifier | 0272-8842 | |
| dc.identifier | http://hdl.handle.net/11449/177743 | |
| dc.identifier | 10.1016/j.ceramint.2015.11.169 | |
| dc.identifier | 2-s2.0-84955587204 | |
| dc.identifier | 2-s2.0-84955587204.pdf | |
| dc.description.abstract | Intense photoluminescence (PL) emission was observed in Zr-doped calcium copper titanate powders. The compounds were synthesized by a soft chemical method and heat treated at temperatures between 300 and 850 °C. The decomposition of the precursors was examined by X-ray diffraction, Fourier transform infrared, Fourier transform Raman, and ultraviolet-visible spectroscopies; as well as PL analysis. Here, we discuss the role of the structural ordering, which facilitates the self-trapping of electrons and charge transfer, and review the mechanism that triggers the PL. The most intense PL emission was obtained for the sample with 5% Zr calcined at 750 °C, which is neither highly disordered nor completely ordered at ∼520 nm. | |
| dc.language | eng | |
| dc.relation | Ceramics International | |
| dc.relation | 0,784 | |
| dc.rights | Acesso aberto | |
| dc.source | Scopus | |
| dc.subject | A. Powders: chemical preparation | |
| dc.subject | B. Electron microscopy | |
| dc.subject | D. Perovskites | |
| dc.title | Photoluminescence emission in zirconium-doped calcium copper titanate powders | |
| dc.type | Artículos de revistas | |
