Tailoring of self-assembled monolayer for polymer light-emitting diodes

Choi, Beomrak; Rhee, Jungsoo; Lee, Hong H.
September 2001
Applied Physics Letters;9/24/2001, Vol. 79 Issue 13
Academic Journal
The choice of a self-assembled monolayer (SAM) is tailored to specifically remove water on an indium-tin oxide electrode and to reduce barrier height for long-term stability of polymer light-emitting diodes. Water, which is a major cause of long-term degradation, is shown to have entirely reversible effects on the power efficiency of the device. It is shown that the use of a SAM for the specific purposes results in a more than an order of magnitude increase in the half lifetime of the device based on poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]. © 2001 American Institute of Physics.


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