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- Title
Hydrothermal Synthesis and Luminescent Properties of BiPO:Eu Phosphors.
- Authors
Zhang, Shujuan; Yang, Yuguo
- Abstract
In this study, BiPO:Eu phosphors were synthesized by a facile hydrothermal route at different temperatures. The BiPO:Eu particles were characterized by x-ray powder diffraction (XRD), infrared spectra, and luminescence spectroscopy. The XRD results reveal that the BiPO:Eu particles present different phases for different hydrothermal temperatures. It is found that a hexagonal phase is formed at 100°C, which transforms to a low-temperature monoclinic phase (MP) when the hydrothermal temperature is increased to 150°C. This low-temperature MP transforms to high-temperature MP when the temperature is increased beyond 200°C. The luminescent properties of the BiPO:Eu particles were studied using an excitation wavelength of 270 nm. The emission spectra display the bands associated with the D → F ( J = 1, 2, 3, and 4) electronic transitions of the Eu cations. The intensity of the emission spectra increases with increasing hydrothermal temperature. These results demonstrate that BiPO:Eu with different phases can be obtained through the hydrothermal method, which may enrich the solution chemistry for preparation of advanced materials with tailored functionality.
- Subjects
PHOSPHORS; BISMUTH compounds; X-ray powder diffraction; LUMINESCENCE spectroscopy; PHASE transitions
- Publication
Journal of Electronic Materials, 2014, Vol 43, Issue 2, p389
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-013-2914-3