Authors: Shujuan Zhang Yuguo Yang
Publish Date: 2013/12/06
Volume: 43, Issue: 2, Pages: 389-392
Abstract
In this study BiPO4Eu3+ phosphors were synthesized by a facile hydrothermal route at different temperatures The BiPO4Eu3+ particles were characterized by xray powder diffraction XRD infrared spectra and luminescence spectroscopy The XRD results reveal that the BiPO4Eu3+ particles present different phases for different hydrothermal temperatures It is found that a hexagonal phase is formed at 100°C which transforms to a lowtemperature monoclinic phase MP when the hydrothermal temperature is increased to 150°C This lowtemperature MP transforms to hightemperature MP when the temperature is increased beyond 200°C The luminescent properties of the BiPO4Eu3+ particles were studied using an excitation wavelength of 270 nm The emission spectra display the bands associated with the 5D0 → 7F J J = 1 2 3 and 4 electronic transitions of the Eu3+ cations The intensity of the emission spectra increases with increasing hydrothermal temperature These results demonstrate that BiPO4Eu3+ with different phases can be obtained through the hydrothermal method which may enrich the solution chemistry for preparation of advanced materials with tailored functionality
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