Progress of InGaN-Based Red Micro-Light Emitting Diodes

Panpan Li; Hongjian Li; Matthew S. Wong; Philip Chan; Yunxuan Yang; Haojun Zhang; Mike Iza; James S. Speck; Shuji Nakamura; Steven P. Denbaars

doi:10.3390/cryst12040541

Crystals (Apr 2022)

Progress of InGaN-Based Red Micro-Light Emitting Diodes

Panpan Li,
Hongjian Li,
Matthew S. Wong,
Philip Chan,
Yunxuan Yang,
Haojun Zhang,
Mike Iza,
James S. Speck,
Shuji Nakamura,
Steven P. Denbaars

Affiliations

Panpan Li: Materials Department, University of California, Santa Barbara, CA 93106, USA
Hongjian Li: Materials Department, University of California, Santa Barbara, CA 93106, USA
Matthew S. Wong: Materials Department, University of California, Santa Barbara, CA 93106, USA
Philip Chan: Materials Department, University of California, Santa Barbara, CA 93106, USA
Yunxuan Yang: Materials Department, University of California, Santa Barbara, CA 93106, USA
Haojun Zhang: Materials Department, University of California, Santa Barbara, CA 93106, USA
Mike Iza: Materials Department, University of California, Santa Barbara, CA 93106, USA
James S. Speck: Materials Department, University of California, Santa Barbara, CA 93106, USA
Shuji Nakamura: Materials Department, University of California, Santa Barbara, CA 93106, USA
Steven P. Denbaars: Materials Department, University of California, Santa Barbara, CA 93106, USA

DOI: https://doi.org/10.3390/cryst12040541
Journal volume & issue: Vol. 12, no. 4
p. 541

Abstract

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InGaN-based red micro-size light-emitting diodes (μLEDs) have become very attractive. Compared to common AlInGaP-based red µLEDs, the external quantum efficiency (EQE) of InGaN red µLEDs has less influence from the size effect. Moreover, the InGaN red µLEDs exhibit a much more robust device performance even operating at a high temperature of up to 400 K. We review the progress of InGaN red μLEDs. Novel growth methods to relax the strain and increase the growth temperature of InGaN red quantum wells are discussed.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

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