Improved luminescent properties of novel nanostructured Eu3+ doped yttrium borate synthesized with carbon nanotube templates

被引:7
|
作者
Zou, D. [1 ]
Ma, Y. Q. [1 ]
Qian, S. B. [1 ]
Huang, B. T. [1 ]
Zheng, G. H. [1 ]
Dai, Z. X. [1 ]
机构
[1] Anhui Univ, Sch Phys & Mat Sci, Anhui Key Lab Informat Mat & Devices, Hefei 230039, Peoples R China
基金
中国国家自然科学基金;
关键词
Luminescence; Carbon nanotube template; Color purity; PHOTOLUMINESCENCE PROPERTIES; RED PHOTOLUMINESCENCE; COLOR PURITY; PHOSPHORS; NANOCRYSTALS; MORPHOLOGY; SPECTRA; BI3+;
D O I
10.1016/j.jallcom.2013.09.065
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Eu3+-doped yttrium borate samples were prepared via a hydrothermal method using borate or tributyl borate as B3+ sources, with and without carbon nanotubes as templates. The morphology of the samples is easily altered by varying the carbon nanotube template, B3+ source and post-annealing treatment. Photoluminescence measurements indicate that the color purity of samples is clearly improved by template-assisted synthesis. Furthermore, with tributyl borate as the B3+ source, CIE coordinates of (0.67, 0.33), very similar to the (0.665, 0.334) coordinates for the commercial red phosphor Y2O2S:Eu3+, can be obtained. Finally, an extra Eu3+-O-2 excitation band is observed for samples made by template-assisted synthesis. The underlying mechanism is discussed in detail. (c) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:471 / 476
页数:6
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