Photoluminescence properties and energy transfer of a color tunable phosphor: Dy3+ and Tm3+ co-activated SrCaAl2SiO7
作者： Yang Li , Xicheng Wang , Wenjing Liu , Chuang Wang , Yuhua Wang
DOI: 10.1016/J.MATERRESBULL.2015.12.031
关键词: Luminescence 、 Photoluminescence 、 Optoelectronics 、 Doping 、 Chromaticity 、 Phosphor 、 Materials science 、 Energy transfer 、 Luminescence spectra 、 Crystal structure 、 Analytical chemistry
摘要: Abstract A series of single-phased emission-tunable SrCaAl2SiO7:Dy3+, Tm3+ phosphors were successfully synthesized by solid-state reaction process. By controling the energy transfer, emission colors could be tuned from blue to yellow, including white light region. It was discovered that is transferred Dy3+ luminescence spectra and decay curves. The resonance-type transfer demonstrated via dipole–dipole mechanism. changing doping concentration in SrCaAl2SiO7, sample with corresponding color coordinates close chromaticity (x = 0.33, y = 0.33) realized.
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