Transparent low-work-function indium tin oxide electrode obtained by molecular scale interface engineering

Osikowicz, W.; Crispin, X.; Tengstedt, C.; Lindell, L.; Kugler, T.; Salaneck, W. R.
August 2004
Applied Physics Letters;8/30/2004, Vol. 85 Issue 9, p1616
Academic Journal
A redox reaction between a monolayer of electron–donor molecules, tetrakis(dimethylamino)ethylene, and the indium tin oxide (ITO) surface results in a decrease of the ITO work function down to 3.7 eV. The modified ITO surface may be used as electron injecting electrode in polymer light-emitting devices. Photoelectron spectroscopy measurements show that the low-work-function of the modified electrode remains upon exposure to air or gentle annealing; thus, making it a good candidate for inexpensive fabrication of organic/polymeric (opto)electronic devices.


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