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1. 南京工业大学 材料化学工程国家重点实验室
2. 南京工业大学 电光源材料研究所, 江苏 南京 210015
收稿:2009-07-11,
修回:1900-1-2,
网络首发:2010-06-30,
纸质出版:2010-06-30
移动端阅览
张瑞西;王海波;黄如喜;谢 晔;林海凤. LED红色发光粉的制备及封装性能[J]. 发光学报, 2010,31(3): 305-310
ZHANG Rui-xi;WANG Hai-bo;HUANG Ru-xi;XIE Ye;LIN Hai-feng. Preparation and Package Performances of Red Phosphor for LED[J]. 发光学报, 2010,31(3): 305-310
实验采用碳酸锂、氧化钨、氧化铕制备了LiEuW
2
O
8
发光粉
通过扫描电镜和光谱仪分别研究了它的形貌与光谱特征。结果显示:LiEuW
2
O
8
发光粉的激发光谱较宽
非常适合于近紫外、蓝光及绿光芯片
发射光谱峰值位于615 nm
色坐标为(
x=0.666
y
=0.331);球磨对它的形貌影响非常明显。为了比较硫化物发光粉和LiEuW
2
O
8
发光粉的性能
分别对他们进行了封装实验
结果显示:LiEuW
2
O
8
发光粉能够有效降低色温
更重要的是
它对光效影响较小
4 000 K时
光效可以保持在60 lm/W以上。
paper
. Jing Yanjun, Wang Haibo, Huang Ruxi, et al. Red phosphor LiEu(SiO2)1/6(WO4)2 particles prepared by spray pyrolysis[J]. Chin. J. Lumin.(发光学报), 2007, 28 (5):715-719 (in Chinese).
. Yang Shuijin, Yu Xinwu, Sun Jutang, et al. Synthesis of Eu3+ doped Li2WO4 and its luminescence properties and ionic conductivity [J]. Chemical Research and Application, 2000, 12 (5):465-470.
. Yang Shuijin, Sun Jutang. Synthesis and luminescent properties of Eu3+ doped Li2WO4[J]. Chin. Rare Earth (稀土), 2004, 25 (1):17-19 (in Chinese).
. Lee Gwan Hyoung, Tae Hyung Kim, Chulsoo Yoon, et al. Effect of local environment and Sm3+-codoping on the luminescence properties in the Eu3+-doped potassium tungstate phosphor for white LEDs[J]. J. Lumin., 2008, 128 (12):1922-1926.
. Wang Zhengliang, Liang Hongbin, Gong Menglian, et al. Novel red phosphor of Bi3+, Sm3+ co-activated NaEu(MoO4)2[J]. Optical Materials, 2007, 29 (7):896-900.
. Jiaguo Wang, Xiping Jing, Yan Chunhua, et al.Influence of fluoride on f-f transitions of Eu3+ in LiEuM2O8 (M=Mo, W) [J]. J. Lumin., 2006, 121 (1):57-61.
. Zhang Guoyou, Zhao Xiaoxia, Meng Qingyu, et al. Preparation and properties of red emitting phospor Gd2Mo2O9 ∶ Eu3+ for white LEDs [J]. Chin. J. Lumin.(发光学报), 2007, 28 (1):57-61 (in Chinese).
. Li Xu, Yang Yong, Yang Zhiping, et al. Fabrication and properties of Eu3+ doped La2Mo2O9 red phosphor [J]. Chin. J. Lumin.(发光学报), 2008, 29 (7):93-96 (in Chinese).
. Gao Fei, Liang Lifang, Guo Chongfeng. Preparation and luminescence of red ligth-emitting phosphors based on Li3Ba2Ln3-x- (MoO4)8 by sol-gel method [J]. Chin. J. Lumin.(发光学报), 2009, 30 (5):610-616 (in Chinese).
. Qi Faxin, Wang Haibo, Zhu Xianzhong. Spherical YAG ∶ Ce3+ phosphor particles prepared by spray pyrolysis [J]. J. Rare Earth, 2005, 23 (4):892-895.
. Hu Yunsheng, Ye Hongqi, Zhuang Weidong, et al. Influence of Sr/Ca ratio on red phosphor Ca1-xSr<em>xS ∶ Eu2+ [J]. J. Chin. Rare Earth Soc. (中国稀土学报), 2004, 22 (6):854-858 (in Chinese).
. Teng Xiaoming, Zhuang Weidong, Hu Yunsheng, et al. Luminescence properties of nitride red phosphor for LED [J]. J. Rare Earth, 2008, 26 (5):652-655.
. Oliver Oeckler, Florian Stadler, Tobias Rosenthal, et al. Real structure of SrSi2O2N2 [J]. Solid State Sciences, 2007, 9 (2):205-212.
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