Abstract
In this work, the synthesis and photoluminescence characteristics of two new phosphors Pr3+: CaYAlO4 (CYA) and Pr3+/Tb3+: CYA for light emitting diodes (LEDs) are investigated. 0.5% (atom percentage) Pr3+: CYA exhibits the largest bright yellow emission by varying the Pr3+ concentration, owing to the cross-relaxation process of 3P0+3H4 → 1G4+1G4. The energy level diagram in Pr3+: CYA, especially the positions of 4f5d level and 1S0 level, is discussed. By co-doping Tb3+ ions, the color coordinates of Pr3+/Tb3+: CYA phosphor can be tuned from yellow to white region. Finally, the strongest luminescence emission with color coordinates of (0.339, 0.364) located in the white region can be obtained in 0.3%Tb3+/0.5%Pr3+: CYA phosphor.
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References
Kavita Mishra, Y. Dwivedi, A. Rai and S. B. Rai, Phys. B 109, 663 (2012).
Han-Yu Lin, Fu-Chang Wei and Yuan-Chu Sheng, Journal of Luminescence 133, 194 (2013).
Su Zhang, Hongbin Liang and Chunmeng Liu, J. Phys. Chem. C 117, 2216 (2013).
A. Toncelli, L. Bonelli, R. Faoro, D. Parisi and M. Tonelli, Optical Materials 31, 1205 (2009).
Xiao-ding Qi, Chieh-Min Liu and Chung-Chiang Kuo, Journal of Alloys and Compounds 492, 61 (2010).
Yuexia Ji, Jiafeng Cao and Zhaojie zhu, Materials Express 1, 231 (2011).
Z. Kotan, M. Ayvacikli, Y. Karabulut, J. Garcia-Guinea, L. Tormo, A. Canimoglu, T. Karali and N. Can, Journal of Alloys and Compounds 581, 101 (2013).
D.Z. Li, X.D. Xu, S.S. Cheng, D.H. Zhou, F. Wu, Z.W. Zhao, C.T. Xia, J. Xu, J. Zhang, H.M. Zhu and X.Y. Chen, Appl. Phys. B 101, 199 (2010).
Dongzhen Li, Xiaodong Xu, Yan Cheng, Shishu Cheng, Dahua Zhou, Feng Wua, Changtai Xia, Jun Xu and Jian Zhang, Journal of Crystal Growth 312, 2117 (2010).
P.O. Petit, J. Petit, Ph. Goldner and B. Viana, Optical Materials 30, 1093 (2008).
R. Moncorge, N. Garnier, Ph. Kerbrat, Ch. Wyon and C. Borel, Optical Communications 141, 29 (1997).
Horacio R, Verdun and Leonard M, Thomas, Appl. Phys. Lett. 56, 7 (1990).
J.C. Souriau, C. Borel, Ch. Wyon, C. Li and R. Moncorge, Journal of Luminescence 59, 349 (1994).
J. Andrew Hutchinson, Horacio R. Verdun, Bruce H.T. Chai, Bahram Zandi and Larry D. Merkle, Optical Materials 3, 287 (1994).
Myung Sub Kim and Jae Su Yu, Phys. Status Solidi B 250, 374 (2013).
Geng Dongling, Li Guogang and Shang Mengmeng, Dalton Transactions 41, 3078 (2012).
Kim Myung Sub, Bharat L. Krishna and Yu Jae Su, Journal of Luminescence 142, 92 (2013).
Fangtian You, Shihua Huang, Chunxia Meng, Dawei Wang, Jianhua Xu, Yan Huang and Guobin Zhang, Journal of Luminescence 122–123, 58 (2007).
G. Ozen, O. Forte and B. Di Bartolo, Journal of Applied Physics 97, 013510 (2005).
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This work has been supported by the Natural Science Foundation of Fujian University of Technology (No.4Y-Z15001).
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Chen, Ql., Lü, Sz. White light emission in Pr3+, Tb3+:CaYAlO4 phosphor. Optoelectron. Lett. 11, 370–374 (2015). https://doi.org/10.1007/s11801-015-5137-4
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DOI: https://doi.org/10.1007/s11801-015-5137-4