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The indium-tin-oxide (ITO) electrode commonly used for hole injection in organic electroluminescent devices is replaced by a crystalline p-type Si electrode in order to improve the injection efficiency. Several conducting/electroluminescent polymers such as poly(9-vinylcarbazole), poly(9,9-dihexylfluorene) and polyhexylcarbazole are deposited via spin-coating onto the Si electrode, and an Al contact...
We demonstrate a new application of photoemission electron microscopy (PEEM) for the investigation of Schottky contacts. As an example we have investigated the changes in contrast in PEEM images when silver is deposited on a lateral p-n diode structure on a Si(100) surface. In agreement with recent studies by other groups, we find three-dimensional island growth in the multilayer regime at low temperatures...
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