Chinese Optics Letters, 2014, 12 (10): 101602, Published Online: Sep. 23, 2014  

Improved photoluminescence behavior of Eu3+-activated Ca5(PO4)3F red nanophosphor by adding Li+, Au3+, and Bi3+ as co-dopants Download: 814次

Author Affiliations
1 College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
2 Key Laboratory of Advanced Materials of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China
Abstract
A series of Ca4.99(PO4)3F:1%Eu3+, 1%X (X = Li+, Au3+, and Bi3+) nanoparticles are prepared using hydro-thermal method, with an average size of 33–62 nm. We study the improved photoluminescence properties of Ca4.99(PO4)3F:1%Eu3+ by co-doping with Li+, Au3+, and Bi3+ ions, respectively, and the enhancement of the emission intensities of Eu3+ is observed in these samples. The effects of Li+ acting as a charge compensator, Au3+ as a plasma surface sensitizer, and Bi3+ as an energy conversion agent are discussed. The results show Ca4.99(PO4)3F:1%Eu3+, 1%X nanoparticles are a promising candidate as a red component for near-ultraviolet light-emitting diodes.

Yumei Wu, Xuhui Xu, Xue Yu, Buhao Zhang, Qianyue Li, Jianbei Qiu. Improved photoluminescence behavior of Eu3+-activated Ca5(PO4)3F red nanophosphor by adding Li+, Au3+, and Bi3+ as co-dopants[J]. Chinese Optics Letters, 2014, 12(10): 101602.

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