Broadband light extraction from white organic light-emitting devices by employing corrugated metallic electrodes with dual periodicity.
basic_science · Level V
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- Record sourced from PubMed, PMID 24352984.
- Also identified by DOI 10.1002/adma.201302367.
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Abstract
A dual-periodic corrugation consisting of two sets of gratings with different periods to realize a broadband light extraction in white organic light-emitting diodes (WOLEDs) is shown. A 37% enhancement in current efficiency and 48% enhancement in the external quantum efficiency compared to those of the conventional planar devices have been obtained. Besides the much improved efficiency, the dual-periodic corrugated WOLEDs exhibit satisfying viewing characteristics.