Please use this identifier to cite or link to this item:
http://acervodigital.unesp.br/handle/11449/73504
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Oliveira, Larissa H. | - |
dc.contributor.author | De Moura, Ana P. | - |
dc.contributor.author | Cavalcante, Laécio S. | - |
dc.contributor.author | Antonio, Selma G. | - |
dc.contributor.author | Longo, Elson | - |
dc.contributor.author | Varela, José Arana | - |
dc.date.accessioned | 2014-05-27T11:26:56Z | - |
dc.date.accessioned | 2016-10-25T18:37:52Z | - |
dc.date.available | 2014-05-27T11:26:56Z | - |
dc.date.available | 2016-10-25T18:37:52Z | - |
dc.date.issued | 2012-08-20 | - |
dc.identifier | http://www.techconnectworld.com/Nanotech2012/a.html?i=1531 | - |
dc.identifier.citation | Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012, p. 394-397. | - |
dc.identifier.uri | http://hdl.handle.net/11449/73504 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/73504 | - |
dc.description.abstract | In this work, (Ca 1-xCu x)TiO 3 crystals with (x = 0, 0.01 and 0.02), labeled as CTO, CCTO1 and CCTO2, were synthesized by the microwave-hydrothermal method at 140°C for 32 min. XRD patterns (Fig. 1), Rietveld refinement and FT-Raman spectroscopy indicated that these crystals present orthorhombic structure Pbnm. Micro-Raman and XANES spectra suggested that the substitution of Ca by Cu in A-site promoted a displacement of the [TiO6]-[TiO6] clusters adjacent from its symmetric center, which leads distortions on the [CaO 12] clusters neighboring and consequently cause the strains into the CaTiO3 lattice. FE-SEM images showed that these crystals have an irregular shape as cube like probably indicating an Ostwald-ripening and self-assemble as dominant mechanisms to crystals growth. The powders presented an intense PL blue-emission. | en |
dc.format.extent | 394-397 | - |
dc.language.iso | eng | - |
dc.source | Scopus | - |
dc.subject | Chemical synthesis | - |
dc.subject | Luminescence | - |
dc.subject | Microcrystals | - |
dc.subject | Optical materials | - |
dc.subject | XANES | - |
dc.subject | Blue-emission | - |
dc.subject | Dominant mechanism | - |
dc.subject | FT- Raman spectroscopy | - |
dc.subject | Irregular shape | - |
dc.subject | Micro-Raman | - |
dc.subject | Microwave-hydrothermal methods | - |
dc.subject | Orthorhombic structures | - |
dc.subject | Photoluminescence properties | - |
dc.subject | Self-assemble | - |
dc.subject | Structural refinement | - |
dc.subject | TiO | - |
dc.subject | XANES spectra | - |
dc.subject | XRD patterns | - |
dc.subject | Calcium | - |
dc.subject | Crystal growth | - |
dc.subject | Crystal structure | - |
dc.subject | Exhibitions | - |
dc.subject | Films | - |
dc.subject | Nanotechnology | - |
dc.subject | Ostwald ripening | - |
dc.subject | Perovskite | - |
dc.subject | Raman spectroscopy | - |
dc.subject | Rietveld refinement | - |
dc.subject | Nanocomposite films | - |
dc.title | Structural refinement and photoluminescence properties of cube-like (Ca 1-xCu x)TiO 3 crystals synthesized by the microwave-hydrothermal method | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Federal de São Carlos (UFSCar) | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | UFSCar, São Carlos, SP | - |
dc.description.affiliation | Instituto de Química UNESP, Araraquara, SP | - |
dc.description.affiliationUnesp | Instituto de Química UNESP, Araraquara, SP | - |
dc.rights.accessRights | Acesso aberto | - |
dc.relation.ispartof | Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012 | - |
dc.identifier.scopus | 2-s2.0-84865015432 | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.