Effect of Bi3+ Concentration on Photoluminescence Properties of Y2O3:Bi3+ Phosphors

被引：0
作者：
Li Q. [1 ]
Zhang B. [1 ]
Shi Z. [1 ]
Kang Y. [2 ]
机构：
[1] State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an
[2] Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an
来源：
Shi, Zhongqi (zhongqishi@xjtu.edu.cn) | 1600年 / Chinese Ceramic Society卷 / 48期
关键词：
Blue-green; Concentration quenching; Phosphor; Yttrium oxide;
D O I：
10.14062/j.issn.0454-5648.20190719
中图分类号：
学科分类号：
摘要：
Y2O3:xBi3+ (x=0.05-1.0% (mole fraction)) phosphors were synthesized by a solid-phase reaction route. Effect of Bi3+ concentration on the phase composition, microstructure and photoluminescence (PL) performance was investigated. The results show that the lattice parameter and cell volume of Y2O3 host increase with the increase of Bi3+ concentration. In addition, the phosphors are equiaxed grains, and the grain size increases gradually from 250 to 600 nm with the Bi3+ concentration increasing. The emission spectra of Y2O3:Bi3+ phosphors excited by ultraviolet light (λEX=335 nm) are composed of three broadband emission spectra centered at 370 nm, 410 nm and 483 nm. The ultraviolet-emission at 370 nm and blue-light emission at 410 nm appear due to 3Au→1Ag and 3Eu→1Ag electron transitions of S6 sites of Bi3+, respectively. The blue-green emission at 483 nm occurs due to 3B→1A electron transition of C2 sites of Bi3+. The Y2O3:0.25%Bi3+ phosphor shows the optimal PL performance. The concentration quenching occurs when Bi3+ concentration is higher than 0.25% due to the dipole-dipole interaction between Bi3+ ions. The color coordinate of Y2O3:0.25%Bi3+ is (0.159 2, 0.218 1), and the color rendering index Ra is 69.27, indicating that the as-synthesized blue-green phosphors have a broad application prospect in the field of white light-emitting diode. © 2020, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.
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页码：1468 / 1473
页数：5
相关论文
共 23 条
[1]  
YANG Zhiping, LI Xu, LI Xingming, Et al., J Chin Ceram Soc, 8, pp. 966-969, (2006)
[2]  
ZHU Chaofeng, YANG Yunxia, LIANG Xiaoluan, Et al., J Chin Ceram Soc, 10, pp. 1401-1405, (2007)
[3]  
XIA Libing, YE Xingyu, PAN Xixiang, Et al., J Chin Ceram Soc, 45, 3, pp. 410-415, (2017)
[4]  
BACHMANN V, RONDA C, MEIJERINK A., Temperature quenching of yellow Ce<sup>3+</sup> luminescence in YAG: Ce, Chem Mater, 21, pp. 2077-2084, (2009)
[5]  
PAN Zhengwei, HE Hong, SONG Xiufeng, Et al., J Chin Ceram Soc, 37, 9, pp. 1590-1596, (2009)
[6]  
IM W B, BRINKLEY S, HU J, Et al., Sr<sub>2.975-x</sub>Ba<sub>x</sub>Ce<sub>0.025</sub>AlO<sub>4</sub>F: A highly efficient green-emitting oxyfluoride phosphor for solid state white lighting, Chem Mater, 22, pp. 2842-2849, (2010)
[7]  
JUNG K Y, LEE H W., Luminescent properties of (Sr, Zn)Al<sub>2</sub>O<sub>4</sub>: Eu<sup>2+</sup>, B<sup>3+</sup> particles as a potential green phosphor for UV LEDs, Chem Mater, 18, pp. 2249-2255, (2006)
[8]  
ZHANG S, NAKAI Y, TSUBOI T, Et al., The thermal stabilities of luminescence and microstructures of Eu<sup>2+</sup>-doped KBaPO<sub>4</sub> and NaSrPO<sub>4</sub> with β-K<sub>2</sub>SO<sub>4</sub> type structure, Inorg Chem, 50, pp. 2897-2904, (2011)
[9]  
XIA Z, LIU R S., Tunable blue-green color emission and energy transfer of Ca<sub>2</sub>Al<sub>3</sub>O<sub>6</sub>F: Ce<sup>3+</sup>, Tb<sup>3+</sup> phosphors for near-UV white LEDs, J Phys Chem C, 116, pp. 15604-15609, (2012)
[10]  
JIAO M, GUO N, LU W, Et al., Tunable blue-green-emitting Ba<sub>3</sub>LaNa(PO<sub>4</sub>)<sub>3</sub>F: Eu<sup>2+</sup>, Tb<sup>3+</sup> phosphor with energy transfer for near-UV white LEDs, Inorg Chem, 52, pp. 10340-10346, (2013)
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