Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2006 Mar;6(3):463-7.
doi: 10.1021/nl052417e.

Efficient CdSe/CdS quantum dot light-emitting diodes using a thermally polymerized hole transport layer

Jialong Zhao  1 , Julie A Bardecker, Andrea M Munro, Michelle S Liu, Yuhua Niu, I-Kang Ding, Jingdong Luo, Baoquan Chen, Alex K-Y Jen, David S Ginger
Affiliations

Efficient CdSe/CdS quantum dot light-emitting diodes using a thermally polymerized hole transport layer

Jialong Zhao et al. Nano Lett. 2006 Mar.

Abstract

We report multilayer nanocrystal quantum dot light-emitting diodes (QD-LEDs) fabricated by spin-coating a monolayer of colloidal CdSe/CdS nanocrystals on top of thermally polymerized solvent-resistant hole-transport layers (HTLs). We obtain high-quality QD layers of controlled thickness (down to submonolayer) simply by spin-coating QD solutions directly onto the HTL. The resulting QD-LEDs exhibit narrow ( approximately 30 nm, fwhm) electroluminescence from the QDs with virtually no emission from the organic matrix at any voltage. Using multiple spin-on HTLs improves the external quantum efficiency of the QD-LEDs to approximately 0.8% at a brightness of 100 cd/m(2) (with a maximum brightness over 1,000 cd/m(2)). We conclude that QD-LEDs could be made more efficient by further optimization of the organic semiconductors.

PubMed Disclaimer

LinkOut - more resources