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Issue 16, 2008
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Red, green, and blue quantum dot LEDs with solution processable ZnO nanocrystal electron injection layers

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Abstract

ZnO nanocrystals are presented as an electron injection layer for red, green, and blue light-emitting diodes (LEDs) based on core–shell CdSe/ZnS quantum dots (QDs). The deposition of ZnO nanocrystals from isopropanol permits fabricating multilayer QD-LEDs that include both hole and electron transport layers by simple solution processing. The ZnO nanocrystals improve electron injection in the light-emitting QD layer as evidenced from a decreased turn-on voltage and a reduction of emission originating from other layers than the QD layer of the LEDs.

Graphical abstract: Red, green, and blue quantum dot LEDs with solution processable ZnO nanocrystal electron injection layers

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Supplementary files

Article information


Submitted
02 Jan 2008
Accepted
06 Feb 2008
First published
05 Mar 2008

J. Mater. Chem., 2008,18, 1889-1894
Article type
Paper

Red, green, and blue quantum dot LEDs with solution processable ZnO nanocrystal electron injection layers

J. W. Stouwdam and R. A. J. Janssen, J. Mater. Chem., 2008, 18, 1889
DOI: 10.1039/B800028J

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