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Int. J. Mol. Sci. 2010, 11(4), 1527-1545; doi:10.3390/ijms11041527

Emission Characteristics of Organic Light-Emitting Diodes and Organic Thin-Films with Planar and Corrugated Structures

1,2, 3,4, 3,5, 3,5,6, 3,5,*  and 3,5,*
Received: 1 February 2010 / Revised: 18 March 2010 / Accepted: 6 April 2010 / Published: 12 April 2010
(This article belongs to the Special Issue Conjugated Polymers)
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In 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.
Keywords: OLED; extraction efficiency; microstructure OLED; extraction efficiency; microstructure
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Wei, M.-K.; Lin, C.-W.; Yang, C.-C.; Kiang, Y.-W.; Lee, J.-H.; Lin, H.-Y. Emission Characteristics of Organic Light-Emitting Diodes and Organic Thin-Films with Planar and Corrugated Structures. Int. J. Mol. Sci. 2010, 11, 1527-1545.

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Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert