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.

引用

页码：1 / 4

页数：4

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