Journal
CHEMICAL PHYSICS LETTERS
Volume 433, Issue 1-3, Pages 110-114Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2006.11.007
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All-plastic light emitting diodes require the design and fabrication of low work function plastic electrodes. Here, we show that the work function of poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid (PEDOT-PSS) can be decreased from 4.8 eV to 3.9 eV by surface reaction with the strong electron-donor tetrakis(dimethylamino)ethylene JDAE). The surface modification was characterized by photoelectron spectroscopy and optical spectroscopy. The low work function plastic electrode was used in a first prototype for all-plastic light emitting diodes. (c) 2006 Elsevier B.V. All rights reserved.
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