Comparison of luminescent properties of Y2O3: Eu3+ and LaPO4: Ce3+,Tb3+ phosphors prepared by various synthetic methods

被引：24
|
作者：
Lee, S. -H. [1 ]
Choi, J. I. [2 ]
Kim, Y. J. [2 ]
Han, J. K. [3 ]
Ha, J. [2 ]
Novitskaya, E. [1 ]
Talbot, J. B. [2 ,4 ]
McKittrick, J. [1 ,2 ]
机构：
[1] Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA
[2] Univ Calif San Diego, Mat Sci & Engn Program, La Jolla, CA 92093 USA
[3] Brookhaven Natl Lab, Condensed Matter Phys & Mat Sci Dept, Upton, NY 11973 USA
[4] Univ Calif San Diego, Dept NanoEngn, La Jolla, CA 92093 USA
来源：
MATERIALS CHARACTERIZATION | 2015年 / 103卷
基金：
美国国家科学基金会;
关键词：
Phosphor; Photoluminescence; Crystallite size; Particle size; Morphology; PHOTOLUMINESCENCE PROPERTIES; CRYSTALLITE SIZE; MORPHOLOGY; PARTICLES; NANOPHOSPHORS; EFFICIENCY; EMISSION; LAMPS;
D O I：
10.1016/j.matchar.2015.03.027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crystallite and particle sizes, morphology and corresponding photoluminescence (PL) properties of nanocrystalline phosphors Y2O3+:Eu3+ and LaPO4:Ce3+,Tb3+, produced by combustion synthesis, co-precipitation, hydrothermal reaction, sol-gel, spray pyrolysis, and solid-state reaction protocols, are compared. In general, phosphor particles with a relatively large crystallite size with a spherical and agglomerated morphology are favored for emitting the highest PL intensity. However, spray-pyrolyzed particles with a uniform spherical morphology and narrow size distribution produced the lowest PL emission intensity, which is attributed to the small crystallite size. For both compositions, the PL emission intensity increased with increasing crystallite size, but was not noticeably dependent on the particle size. (C) 2015 Elsevier Inc. All rights reserved.
引用
收藏
页码：162 / 169
页数：8
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