Synthesis and upconversion luminescence of hexagonal-phase NaYF4:Yb, Er3+, phosphors of controlled size and morphology

被引：524
作者：
Zeng, JH
Su, J
Li, ZH
Yan, RX
Li, YD [1 ]
机构：
[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China
[2] Natl Ctr Nanosci & Nanotechnol, Beijing 100084, Peoples R China
来源：
ADVANCED MATERIALS | 2005年 / 17卷 / 17期
关键词：
D O I：
10.1002/adma.200402046
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Green upconversion emission from hexagonal-phase NaYF4:Yb, Er3+ phosphors can be directly observed with the naked eye. Powders with controlled size and morphology can be synthesized in ethanol and show a minimal decrease in luminescence intensity after 24 It (see Figure). The intense upconversion emission suggests good crystallinity of the materials, which may be used in biological labeling.
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页码：2119 / +
页数：6
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