Abstract
The process of charge injection plays an important role in organic semiconductor devices. We studied the behavior of metal contacts with a host-guest organic semiconductor using a variety of techniques. These studies helped determine the dependence of the charge injection efficiency on parameters such as the energy barriet at the interface, the mobility of the organic semiconductor, its carrier density (doping level) and thickness. The implications of our findings on the performance of organic light emitting diodes and thin film transistors will be discussed and guidelines for forming Ohmic contacts will be presented.
© 2003 Optical Society of America
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