Luminescence in colloidal Mn2+-doped semiconductor nanocrystals

被引:160
作者
Beaulac, Remi [1 ]
Archer, Paul I. [1 ]
Gamelin, Daniel R. [1 ]
机构
[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA
基金
加拿大自然科学与工程研究理事会;
关键词
nanocrystals; colloids; luminescence spectroscopy; Mn2+; diluted magnetic semiconductors; quantum dots;
D O I
10.1016/j.jssc.2008.05.001
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Recent advances in nanocrystal doping chemistries have substantially broadened the variety of photophysical properties that can be observed in colloidal Mn2+-doped semiconductor nanocrystals. A brief overview is Provided, focusing on Mn2+-doped II-VI semiconductor nanocrystals prepared by direct chemical synthesis and capped with coordinating surface ligands. These Mn2+-doped semiconductor nanocrystals are organized into three major groups according to the location of various Mn2+-related excited states relative to the energy gap of the host semiconductor nanocrystals. The positioning of these excited states gives rise to three distinct relaxation scenarios following photoexcitation. A brief Outlook on future research directions is provided. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:1582 / 1589
页数:8
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