Quantum confinement in silver selenide semiconductor nanocrystals

被引：100
作者：
Sahu, Ayaskanta [1 ,2 ]
Khare, Ankur [2 ]
Deng, Donna D. [2 ]
Norris, David J. [1 ]
机构：
[1] ETH Zentrum, Opt Mat Engn Lab, CH-8092 Zurich, Switzerland
[2] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA
来源：
CHEMICAL COMMUNICATIONS | 2012年 / 48卷 / 44期
基金：
美国国家科学基金会;
关键词：
AG2SE NANOCRYSTALS; THIN-FILMS; DOTS; TEMPERATURE; TRANSITION; BETA-AG2SE; DEPENDENCE; INTERBAND; EMISSION; CARRIERS;
D O I：
10.1039/c2cc30539a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We prepare Ag2Se nanocrystals with average diameters between 2.7 and 10.4 nm that exhibit narrow optical absorption features in the near to mid infrared. We demonstrate that these features are broadly tunable due to quantum confinement. They provide the longest wavelength absorption peaks (6.5 mu m) yet reported for colloidal nanocrystals.
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页码：5458 / 5460
页数：3
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