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Employing Photo-Assisted Ligand Exchange Technique in Layered Quantum Dot LEDs

Published online by Cambridge University Press:  08 March 2011

Wenjia Hu ,
Shuai Gao ,
Paras N. Prasad ,
Jingkang Wang  and
Jian Xu
Wenjia Hu
Affiliation:
Engineering Science and Mechanics, the Pennsylvania State University, University Park, Pennsylvania; Chemical Engineering and Technology, Tianjin University, Tianjin, China;
Shuai Gao
Affiliation:
Engineering Science and Mechanics, the Pennsylvania State University, University Park, Pennsylvania; Chemical Engineering and Technology, Tianjin University, Tianjin, China;
Paras N. Prasad
Affiliation:
Institute for Lasers, Photonics and Biophotonics, University at Buffalo, The State University of New York, Buffalo, New York
Jingkang Wang
Affiliation:
Chemical Engineering and Technology, Tianjin University, Tianjin, China;
Jian Xu
Affiliation:
Engineering Science and Mechanics, the Pennsylvania State University, University Park, Pennsylvania;
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Abstract

We presented in this paper a photo-assisted ligand exchange approach whereby light will be introduced to facilitate the replacement of oleic acid (OA) ligand molecules over PbSe quantum dots (QDs). The ligand-exchanged QDs were used to fabricate quantum dot light-emitting-diodes (QD-LEDs), which outperform the devices comprising the QDs without ligand-replacement.

Keywords

thin filmnanostructurenanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1286: Symposium E – Molecular and Hybrid Materials for Electronics and Photonics , 2011 , mrsf10-1286-e03-54
Copyright
Copyright © Materials Research Society 2011

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