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Low temperature route for synthesis of cadmium selenide quantum dots and their application in fabricating a QD-LED

Published online by Cambridge University Press:  25 February 2014

Menaka Jha ,
Michael McCreary ,
Sreeram Vaddiraju  and
Delaina A. Amos
Menaka Jha
Affiliation:
Conn Center for Renewable Energy Research, J.B. Speed School of Engineering, University of Louisville, USA
Michael McCreary
Affiliation:
Department of Chemical Engineering, J.B. Speed School of Engineering, University of Louisville, USA
Sreeram Vaddiraju
Affiliation:
Department of Chemical Engineering, Texas A&M University, USA
Delaina A. Amos*
Affiliation:
Department of Chemical Engineering, J.B. Speed School of Engineering, University of Louisville, USA
*
*Email: delaina.amos@louisville.edu
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Abstract

The present study describes the effect of ageing time during the synthesis of oleic acid capped cadmium selenide quantum dots synthesized by the hot injection route and their use in the fabrication of a hybrid quantum dot light emitting device (QD-LED). This hot injection process has been carried out at the lower synthesis temperature of 140°C compared to the conventional temperature of ∼300°C. Fluorescent monodisperse quantum dots of size 3-5 nm and 8-10 nm have been obtained at an ageing time of 2 and 3 hours respectively. An attempt to fabricate a QD-LED has been carried out. Current versus voltage studies show a turn on voltage at 3.06 V with a current of ∼ 87 nA.

Keywords

chemical synthesisluminescenceoptical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1630: Symposium O – Solution Processing of Inorganic and Hybrid Materials for Electronics and Photonics , 2014 , mrsf13-1630-o04-09
Copyright
Copyright © Materials Research Society 2014 

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References

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