Synthesis of Hexagonal-Phase Core-Shell NaYF4 Nanocrystals with Tunable Upconversion Fluorescence

被引：352

作者：

Qian, Hai-Sheng ^{[1
]}

Zhang, Yong ^{[1
,2
]}

机构：

[1] Natl Univ Singapore, Fac Engn, Div Bioengn, Singapore 117574, Singapore

[2] Natl Univ Singapore, Nanosci & Nanotechnol Inst, Singapore 117576, Singapore

来源：

LANGMUIR | 2008年 / 24卷 / 21期

关键词：

D O I：

10.1021/la802343f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hexagonal-phasecore-shell-structured NaYF4:Yb,Tm@beta-NaYF4:Yb,Er and beta-NaYF4:Yb,Tm@-NaYF4:Yb,Er@#NaYF4:Yb,Tm nanocrystals were synthesized by a seeded growth approach. beta-NaYF4:Yb,Tm nanocrystals with 20 nm diameter were used as seed crystals to induce the growth of beta-NaYF4:Yb,Er and then beta-NaYF4:Yb,Tm crystals, resulting in the formation of core-shell-structured nanocrystals with upconverting lanthanide ions Tm and Er doped in the core and shell, respectively.

引用

页码：12123 / 12125

页数：3

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