Influence of coating on the photoluminescence of Tb3+ doped ZnSe/ZnS core-shell quantum dots

被引：11

作者：

Cichos, J. ^{[1
]}

Karbowiak, M. ^{[1
]}

Hreniak, D. ^{[2
]}

Strek, W. ^{[2
]}

机构：

[1] Univ Wroclaw, Fac Chem, Ul F Joliot Curie 14, PL-50383 Wroclaw, Poland

[2] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

来源：

JOURNAL OF RARE EARTHS | 2016年 / 34卷 / 08期

关键词：

quantum dots; lanthanide; ZnSe; terbium; rare earths; NANOCRYSTALS; LUMINESCENCE; LANTHANIDES; YB3+;

D O I：

10.1016/S1002-0721(16)60101-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Tb3+-doped ZnSe and ZnSe/ZnS nanocrystals were synthesized using modified hot-injection method. The observation of the characteristic quantum dots absorption features in a time-gated excitation spectrum was recorded while monitoring Tb3+ emission at 545 nm provided direct evidence for successful incorporation of dopant ions into semiconductor host. Relatively long decay time (similar to 1.5 ms) of Tb3+ emission indicated that dopant ions were well protected from interaction with surface ligands. Emission properties of core ZnSe: Tb3+ nanocrystals were only slightly modified upon growth of ZnS shell.

引用

页码：828 / 832

页数：5

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