Luminescent properties of SrBPO5:Dy3+ and effect of Co-doping with Tm3+ |
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Authors: | Bing Han Jie Zhang Yinhua Lü Yan Liu Qiao Cui |
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Institution: | 1. School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, 450002, People’s Republic of China
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Abstract: | A series of phosphors SrBPO5:Dy3+ and SrBPO5:Dy3+,Tm3+ was synthesized by traditional solid-state high-temperature method and was characterized by X-ray diffraction (XRD) and fluorescence spectrophotometry. For SrBPO5:Dy3+ material, the f-f transitions of Dy3+ ions were assigned and discussed, and the optimal doping concentration of Dy3+ was found. As a result of co-doping SrBPO5:Dy3+ with Tm3+, the phosphors SrBPO5:Dy3+,Tm3+ can be effectively excited by 360 nm ultraviolet (UV), and exhibit color-tunable emission from blue to yellowish-white region with different doping concentration. The present study can pave the way for the creation of efficient UV phosphors using Dy3+,Tm3+ co-doped systems for near-UV InGaN-based light emitting diodes (LEDs). |
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