Fabrication and optical properties of Mn2+-doped CdS/ZnS core/shell nanocrystals

被引：4

作者：

Takada, Masahiro ^{[1
]}

Ishizumi, Atsushi ^{[1
]}

Yanagi, Hisao ^{[1
]}

机构：

[1] Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300192, Japan

来源：

PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 9, NO 12 | 2012年 / 9卷 / 12期

关键词：

core/shell nanocrystal; Mn doping; photoluminescence; CDSE QUANTUM DOTS; SEMICONDUCTOR CLUSTERS; LUMINESCENCE; PHOTOLUMINESCENCE;

D O I：

10.1002/pssc.201200271

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have fabricated Mn2+-doped CdS/ZnS core/shell nanocrystals (NCs) where Mn ions exist within ZnS shell layer, and have studied optical properties of the samples with different Mn concentrations. The exciton and Mn PL are clearly observed in the Mn2+-doped CdS/ZnS core/shell NCs. The intensity of the exciton PL decreases with the Mn concentration, while that of the Mn PL increases. Furthermore, the Stokes shift of the exciton PL is suppressed by doping of the Mn ions. Our findings reveal that the Mn ions within the ZnS shell is excited by energy transfer from excitons of the CdS cores. (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2469 / 2472

页数：4

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