The Influence of Boric Acid Content on Luminescent Properties of SrAl2O4
WANG Guang-hui1,LIANG Xiao-ping1*,GU Yu-fen2
1. Tianjin Municipal Key Lab of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160, China 2. School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
Abstract：Long persistence phosphor powder of Eu2+, Dy3+ co-doped SrAl2O4 were prepared by combustion method. The influence of boric acid with different contents on the luminescent properties of Eu2+, Dy3+ co-doped alkaline earth aluminates were studied. To analyze the role of B2O3, phase identification was carried out by X-ray powder diffraction, emission spectra were recorded using a luminescence spectrometer, and luminescence photos were taken in a dark room after being excited by UV. The results indicated that the λem of the sample with content of 0.8 is 518 nm, which is the typical emission of Eu2+ 4f5d→4f and is a wide emission spectrum. There are two peaks in the emission spectra of the sample with content of 2, one is at 518 nm, and the other is at 487 nm, both of which are weak. The whole spectral line is a declining line. With the increase in boric acid content, the luminescence property and appearance character of Eu2+, Dy3+ co-doped strontium aluminates long persistence phosphor were different. In some range, with the increase in boric acid content, luminescence property and luminescence intensity were increased, and the sintering temperature was lowed.
王光辉1,梁小平1*,顾玉芬2. 硼酸掺量对SrAl2O4长余辉发光材料的发光性能影响[J]. 光谱学与光谱分析, 2008, 28(05): 1020-1022.
WANG Guang-hui1,LIANG Xiao-ping1*,GU Yu-fen2. The Influence of Boric Acid Content on Luminescent Properties of SrAl2O4. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(05): 1020-1022.
[1] SUN Jia-yue, DU Hai-yan, HU Wen-xiang(孙家跃, 杜海燕, 胡文祥). Solid Phosphorescence(固体发光材料). Beijing：Chemical Industry Press(北京: 化学工业出版社), 2002. [2] LI Jian-yu(李建宇). Rare Earth Luminescent Materials and Its Application(稀土发光材料及其应用). Beijing：Chemical Industrial Press (北京: 化学工业出版), 2003. [3] REN Xin-guang, MENG Ji-wu(任新光, 孟继武). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2000, 20(3): 268. [4] CHEN Zhong-lin, WAN Ti-zhi, ZHANG Yu-qi(陈仲林, 万体智, 张玉奇, 等). Chinese Lighting(中国照明电器), 1999, (6): 5. [5] WANG Hui-qin, ZHANG Lei, MA Lin, et al(王惠琴, 张 磊, 马 林, 等). Journal of Fudan University (Natural Science)(复旦学报·自然科学版), 1997, 36(1): 65. [6] Chander H, Haranath D, Shanker V, et al. Journal of Crystal Growth, 2004, 271: 307. [7] Nag A，Kutty T R N. Journal of Alloys and Compounds, 2003, 354: 221.
