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Emission characteristics of organic light-emitting diodes and organic thin-films with planar and corrugated structures Wei MK; Lin CW; Yang CC; Kiang YW; Lee JH; Lin HYInt J Mol Sci 2010[Apr]; 11 (4): 1527-45In this paper, we review the emission characteristics from organic light-emitting diodes (OLEDs) and organic molecular thin films with planar and corrugated structures. In a planar thin film structure, light emission from OLEDs was strongly influenced by the interference effect. With suitable design of microcavity structure and layer thicknesses adjustment, optical characteristics can be engineered to achieve high optical intensity, suitable emission wavelength, and broad viewing angles. To increase the extraction efficiency from OLEDs and organic thin-films, corrugated structure with micro- and nano-scale were applied. Microstructures can effectively redirects the waveguiding light in the substrate outside the device. For nanostructures, it is also possible to couple out the organic and plasmonic modes, not only the substrate mode.|*Lasers, Semiconductor[MESH]|Electrodes[MESH]|Glass/chemistry[MESH]|Lighting[MESH]|Organic Chemicals/*chemistry[MESH]|Tin Compounds/chemistry[MESH] |
