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http://hdl.handle.net/1843/57263| Type: | Artigo de Periódico |
| Title: | Thermal, vibrational and optical properties of PrLuO3 interlanthanides from hydrothermally-derived precursors |
| Authors: | Júlia Cristina Soares Kisla Prislen Félix Siqueira Paulo César de Sousa Filho Roberto Luiz Moreira Anderson Dias |
| Abstract: | PrLuO3 interlanthanides were prepared at temperatures ranging from 800 °C to 1600 °C using hydrothermally-derived precursors. The chemical reactions observed include the conversion and segregation of Pr(OH)3 and LuO(OH), respectively, into PrO2 and Lu2O3 cubic oxides below 1200 °C, followed by the production of a mixture of hexagonal P63/mmc and orthorhombic Pnma PrLuO3 phases at 1400 °C. Phase-pure orthorhombic PrLuO3 was obtained at 1600 °C, which was corroborated by Raman and micro far-infrared spectroscopic analyses. Photoluminescence, colorimetric and lifetime measurements were carried out in PrLuO3 samples. Dominant emission verified in samples calcined at 1400 °C corresponds to the hypersensitive 3P0 → 3F2 transition with a color purity of 97% (decay times of 12 μs and 3 μs), while emissions for the phase-pure samples correspond to the 3P0 → 3H6 and 3P0 → 3H5 transitions with a color purity of 94% (a single luminescence lifetime of 12 μs). The optical properties of PrLuO3 interlanthanides thereby suggest that they can be used as luminescent materials in both structural arrangements. |
| Subject: | Metais de terras raras Espectroscopia de infravermelho Raman, Espectroscopia de Fotoluminescência |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE QUÍMICA |
| Rights: | Acesso Restrito |
| metadata.dc.identifier.doi: | DOI https://doi.org/10.1039/C6DT03857C |
| URI: | http://hdl.handle.net/1843/57263 |
| Issue Date: | 2017 |
| metadata.dc.url.externa: | https://pubs.rsc.org/en/content/articlelanding/2017/dt/c6dt03857c#! |
| metadata.dc.relation.ispartof: | Dalton Transactions |
| Appears in Collections: | Artigo de Periódico |
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