Synthesis and luminescence characteristics of Li2Y4-xSmx(MoO4)7 red-emitting phosphors

被引：0
作者：
Department of Chemistry, Fujian Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde [1 ]
Fujian
352100, China
不详 [2 ]
350108, China
机构：
[1] Department of Chemistry, Fujian Province University Key Laboratory of Green Energy and Environment Catalysis, Ningde Normal University, Ningde, 352100, Fujian
[2] College of Chemistry, Fuzhou University, Fuzhou
来源：
Kuei Suan Jen Hsueh Pao | / 11卷 / 1631-1635期
关键词：
Concentration quenching; Luminescence characteristic; Phosphor; White light-emitting diode;
D O I：
10.14062/j.issn.0454-5648.2015.11.17
中图分类号：
学科分类号：
摘要：
A series of red light-emitting phosphors of Li2Y4-xSmx(MoO47 were synthesized via solid-state reaction at a high temperature. The optimum synthesis conditions of these phosphors are sintered at 700℃ for 2 h, the mass content of flux H3BO3 of 3%, and the doping content of Sm3+ of 6% in mole. The reason of the concentration quenching was also discussed. The results show that the phosphors can be excited by ultraviolet light of 405 nm effectively, exhibiting the intense red emission lines at 646 nm, corresponding to the 4G5/2→6H9/2 transition of Sm3+. © 2015, Chinese Ceramic Society. All right reserved.
引用
收藏
页码：1631 / 1635
页数：4
相关论文
共 22 条
[1]  
Ekambaram S., Maaza M., Combustion synthesis and luminescent properties of Eu<sup>3+</sup>-activated cheap red phosphors, J Alloy Compd, 395, 1, pp. 132-134, (2005)
[2]  
Hu Y.S., Zhuang W.D., Ye H.Q., Preparation and luminescent properties of (Ca<sub>1-x</sub>Sr<sub>x</sub>)S:Eu<sup>2+</sup> red-emitting phosphor for white LED, J Lumin, 111, 3, pp. 139-145, (2005)
[3]  
Thiyagarajan P., Kottaisamy M., Ramachandra Rao M.S., Luminescent properties of near UV excitable Ba<sub>2</sub>ZnS<sub>3</sub>:Mn red emitting phosphor blend for white LED and display applications, J Phys D: Appl Phys, 39, 13, pp. 2701-2706, (2006)
[4]  
Suna X., Zhang J., Zhang X., A white light phosphor suitable for near ultraviolet excitation, J Lumin, 122, pp. 955-957, (2007)
[5]  
Smet P.F., Korthout K., Van Haecke J.E., Using rare earth doped thiosilicate phosphors in while light emitting LEDs: Towards low colour temperature and high colour rendering, Mater Sci Eng B, 146, pp. 264-268, (2008)
[6]  
Mueller A.H., Petruska M.A., Achermann M., Et al., Multicolor light-emitting diodes based on semiconductor nanocrystals encapsulated in GaN charge injection layers, Nano Lett, 5, 6, pp. 1039-1044, (2005)
[7]  
Narendran N., Gu Y., Freyssinier-Nova J.P., Et al., Extracting phosphor-scattered photons to improve white LED efficiency, Physica Status Solidi(a), 202, 6, pp. R60-R62, (2005)
[8]  
Guo C.F., Yang H.K., Jeong J.H., Preparation and luminescent properties of phosphor MGd<sub>2</sub>(MoO<sub>4</sub>)<sub>4</sub>:Eu<sup>3+</sup>(M=Ca, Sr and Ba), J Lumin, 130, pp. 1390-1393, (2010)
[9]  
Li L.L., Zhang J.J., Zi W.W., Et al., Synthesis and luminescent properties of high brightness MRE(MoO<sub>4</sub>)<sub>2</sub>:Eu<sup>3+</sup> (M=Li, Na, K
[10]  
RE=Gd, Y, Lu) red phosphors for white LEDs, Solid State Sci, 29, pp. 58-65, (2014)
123