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In this study, OLED using hetero electrode structures have been fabricated to increase luminescence efficiency. Also, the numerical simulation of these fabricated hetero structures has been carried out in order to understand the improvement of efficiency. It was found that numerical analysis about hetero electrode showed an excellent agreement with the experimental result and the presence of a thin...
We have studied contact barrier effects in ITO/MEH-PPV/Al and Au/MEH-PPV/Au structure using band-theory-based bipolar transport model that describes both injection limited and space charge limited current flow and the transition between them. Charge injection into the organic material occurs by thermionic emission and by tunneling. The model calculations show a good description of the measured I-V...
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