Highly efficient organic light-emitting device using...

Semiconductor device manufacturing: process – Making device or circuit responsive to nonelectrical signal – Responsive to electromagnetic radiation

Reexamination Certificate

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C438S099000, C257SE51022

Reexamination Certificate

active

07741145

ABSTRACT:
The present invention provides a transparent substance formed with a plurality of continuous half-spherical convexes having a diameter of 25˜1,000 nm on its first main surface; an organic light-emitting device comprising a substrate, a first electrode, an organic material layer(s) and a second electrode, sequentially, characterized by having a plurality of continuous half-spherical convexes having a diameter of 25˜1,000 nm on the underside of the substrate that does not contact the first electrode and/or the upside of the second electrode that does not contact the organic material layer; and a method for preparing same using a porous aluminum oxide layer forming process.

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Alexander V. Kukhta et al., “Porous Alumina Based Cathode for Organic Light-Emitting Devices,” Institute of Molecular and Atomic Physics of the National Academy of Sciences of Belarus, SPIE vol. 4105 (2001), pp. 405-412.

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