Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 128, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2937729
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Understanding the electronic structure of organic-organic heterointerfaces is crucial for many device applications of organic semiconductors. Here we have developed a simple analytical model to describe the effect of static dipolar disorder in a polymer dielectric on the density of states of an adjacent organic semiconductor. The degree of energetic disorder varies strongly with distance from the interface. Using a simple mobility model, we have been able to explain quantitatively both the magnitude as well as the gate voltage dependence of the field-effect mobility for polymer gate dielectrics with different dielectric constants. (C) 2008 American Institute of Physics.
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