Electron injection into organic semiconductor devices from high work function cathodes.

Proceedings of the National Academy of Sciences of the United States of America
Corey V HovenThuc-Quyen Nguyen

Abstract

We show that polymer light-emitting diodes with high work-function cathodes and conjugated polyelectrolyte injection/transport layers exhibit excellent efficiencies despite large electron-injection barriers. Correlation of device response times with structure provides evidence that the electron-injection mechanism involves redistribution of the ions within the polyelectrolyte electron-transport layer and hole accumulation at the interface between the emissive and electron-transport layers. Both processes lead to screening of the internal electric field and a lowering of the electron-injection barrier. The hole and electron currents are therefore diffusion currents rather than drift currents. The response time and the device performance are influenced by the type of counterion used.

References

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Citations

Dec 22, 2010·Journal of the American Chemical Society·Junfeng FangWilhelm T S Huck
Jun 11, 2011·Journal of the American Chemical Society·Peter ZalarThuc-Quyen Nguyen
May 12, 2011·Journal of the American Chemical Society·Jung Hwa SeoGuillermo C Bazan
May 23, 2009·Journal of the American Chemical Society·Huaping LiGuillermo C Bazan
Aug 15, 2009·Journal of the American Chemical Society·Cheng WangHarald Ade
Dec 9, 2009·Journal of the American Chemical Society·Jung Hwa SeoGuillermo C Bazan
Jan 26, 2013·ACS Nano·Andrew P-Z ClarkSarah H Tolbert
Jun 6, 2013·Nature Communications·Hua ZhengYong Cao
Sep 28, 2010·Chemical Communications : Chem Comm·Toan V PhoFred Wudl
Mar 24, 2017·ACS Applied Materials & Interfaces·Jiang LiuHuaping Li
Jan 29, 2016·Physical Chemistry Chemical Physics : PCCP·Hugh D BurrowsMatti Knaapila
Feb 14, 2015·Advanced Materials·Oleksandr V MikhnenkoThuc-Quyen Nguyen
Feb 21, 2009·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Jung Hwa SeoThuc-Quyen Nguyen
Nov 2, 2019·Physical Chemistry Chemical Physics : PCCP·Samuel D SeddonGavin R Bell
Mar 8, 2011·Advanced Materials·Christopher J BettingerZhenan Bao
Oct 3, 2012·Advanced Materials·Lei YingGuillermo C Bazan
Feb 24, 2011·Advanced Materials·Michele Sessolo, Henk J Bolink
Jun 22, 2012·Advanced Materials·Yuan ZhangThuc-Quyen Nguyen
Nov 28, 2013·Angewandte Chemie·Cheng-Kang MaiGuillermo C Bazan
Apr 10, 2021·The Journal of Chemical Physics·Tammy X LeongIgor V Rubtsov
Feb 9, 2011·Journal of the American Chemical Society·Andres GarciaThuc-Quyen Nguyen
Dec 10, 2014·Journal of the American Chemical Society·Hyunbok LeeAlejandro L Briseno
May 27, 2014·Journal of the American Chemical Society·Daniel TorderaThuc-Quyen Nguyen
Dec 15, 2017·Accounts of Chemical Research·Qiuhong Cui, Guillermo C Bazan
Oct 30, 2021·Chemical Reviews·Samantha R McCuskeyThuc-Quyen Nguyen

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