Enhanced areal efficiency from 370nm AlGaN micro-ring light emitting diodes

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Choi, H.W. and Dawson, M.D. (2005) Enhanced areal efficiency from 370nm AlGaN micro-ring light emitting diodes. Physica Status Solidi C, 2 (7). pp. 2854-2857. ISSN 1610-1642 (http://dx.doi.org/10.1002/pssc.200461339)

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Abstract

The electrical and optical characteristics of a 370 nm AlGaN light-emitting diode device based on a microring-array geometry are presented. By structuring the light emission area into an interconnected array of micro-scale rings, the directed light extraction efficiency is enhanced, and current spreading in the n-type cladding layers is improved. A reduction of differential series resistance is observed, and the device saturates at a higher current as the carriers are injected efficiently and uniformly across the junction areas.

ORCID iDs

Choi, H.W. and Dawson, M.D. ORCID logoORCID: https://orcid.org/0000-0002-6639-2989;
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