Improved current spreading in 370nm AlGaN microring light emitting diodes

H.W. Choi; M.D. Dawson

doi:10.1063/1.1861130

Improved current spreading in 370nm AlGaN microring light emitting diodes

H.W. Choi, M.D. Dawson

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The electrical and optical characteristics of a 370 nm AlGaN light-emitting diode based on a microring geometry is presented. By structuring the light emission area into an interconnected array of microscale rings, 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. As a result, optical output power from the microring light-emitting diode is improved compared to a conventional device of broad area geometry.

Original language	English
Journal	Applied Physics Letters
Volume	86
Issue number	053504
DOIs	https://doi.org/10.1063/1.1861130
Publication status	Published - 2005

Keywords

photonics
optics
diodes
geometry
applied physics

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10.1063/1.1861130

Cite this

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title = "Improved current spreading in 370nm AlGaN microring light emitting diodes",

abstract = "The electrical and optical characteristics of a 370 nm AlGaN light-emitting diode based on a microring geometry is presented. By structuring the light emission area into an interconnected array of microscale rings, 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. As a result, optical output power from the microring light-emitting diode is improved compared to a conventional device of broad area geometry.",

keywords = "photonics, optics, diodes, geometry, applied physics",

author = "H.W. Choi and M.D. Dawson",

year = "2005",

doi = "10.1063/1.1861130",

language = "English",

volume = "86",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Inc.",

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T1 - Improved current spreading in 370nm AlGaN microring light emitting diodes

AU - Choi, H.W.

AU - Dawson, M.D.

PY - 2005

Y1 - 2005

N2 - The electrical and optical characteristics of a 370 nm AlGaN light-emitting diode based on a microring geometry is presented. By structuring the light emission area into an interconnected array of microscale rings, 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. As a result, optical output power from the microring light-emitting diode is improved compared to a conventional device of broad area geometry.

AB - The electrical and optical characteristics of a 370 nm AlGaN light-emitting diode based on a microring geometry is presented. By structuring the light emission area into an interconnected array of microscale rings, 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. As a result, optical output power from the microring light-emitting diode is improved compared to a conventional device of broad area geometry.

KW - photonics

KW - optics

KW - diodes

KW - geometry

KW - applied physics

UR - http://dx.doi.org/10.1063/1.1861130

U2 - 10.1063/1.1861130

DO - 10.1063/1.1861130

M3 - Article

SN - 0003-6951

VL - 86

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 053504

ER -

Improved current spreading in 370nm AlGaN microring light emitting diodes

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Keywords

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