Ultrasmall colloidal PbS quantum dots

被引：21
|
作者：
Reilly, Nick [1 ]
Wehrung, Michael [1 ]
O'Dell, Ryan Andrew [1 ]
Sun, Liangfeng [1 ,2 ]
机构：
[1] Bowling Green State Univ, Dept Phys & Astron, Bowling Green, OH 43403 USA
[2] Bowling Green State Univ, Ctr Photochem Sci, Bowling Green, OH 43403 USA
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 147卷 / 1-2期
关键词：
Nanostructures; Semiconductors; Chemical synthesis; Photoluminescence spectroscopy; NANOCRYSTALS;
D O I：
10.1016/j.matchemphys.2014.04.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultrasmall colloidal lead sulfide quantum dots can increase the open circuit voltages of quantum-dot-based solar cells because of their large energy gap. Their small size and visible or near infrared light-emitting property make them attractive to the applications of biological fluorescence labeling. Through a modified organometallic route, we can synthesize lead sulfide quantum dots as small as 1.6 nm in diameter. The low reaction temperature and the addition of a chloroalkane cosolvent decrease the reaction rate, making it possible to obtain the ultrasmall quantum dots. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：1 / 4
页数：4
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