Rietveld refinement and photoluminescent properties of a new blue-emitting material: Eu2+ activated SrZnP2O7
作者： Jun-Lin Yuan , Xiao-Yan Zeng , Jing-Tai Zhao , Zhi-Jun Zhang , Hao-Hong Chen
DOI: 10.1016/J.JSSC.2007.09.023
关键词:
摘要: Abstract A new efficient blue phosphor, Eu2+ activated SrZnP2O7, has been synthesized at 1000 °C under reduced atmosphere and the crystal structure photoluminescence properties have investigated. The of SrZnP2O7 was obtained via Rietveld refinement powder X-ray diffraction (XRD) pattern. It found that crystallizes in space group P21/n (no. 14), Z=4, unit cell dimensions are: a=5.30906(2) A, b=8.21392(3) A, c=12.73595(5) A, β=90.1573(3)°, V=555.390(3) A3. Under ultraviolet excitation (200–400 nm), emission peaked 420 nm observed, which luminescent efficiency optimal concentration (4 mol%) estimated to be 96% as BaMgAl10O17:Eu2+. Hence, SrZnP2O7:Eu2+ exhibit great potential a phosphor different applications, such light emitting diode photo-therapy lamps.
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