Investigation of InGaN-based red/green micro-light-emitting diodes

Zhe Zhuang; Daisuke Iida; Kazuhiro Ohkawa

doi:10.1364/ol.422579

Investigation of InGaN-based red/green micro-light-emitting diodes

Zhe Zhuang, Daisuke Iida, Kazuhiro Ohkawa

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

49 Scopus citations

Abstract

We investigated the performance of InGaN-based red/green micro-light-emitting diodes (µLEDs) ranging from 98 × 98 µm2 to 17 × 17 µm. The average forward voltage at 10 A/cm2 was independent of the dimension of µLEDs. Red µLEDs exhibited a larger blueshift of the peak wavelength (∼35 nm) and broader full-width at half maximum (≥50 nm) at 2−50 A/cm2 compared to green µLEDs. We demonstrated that 47 × 47 µm2 red µLEDs had an on-wafer external quantum efficiency of 0.36% at the peak wavelength of 626 nm, close to the red primary color defined in the recommendation 2020 standard.

Original language	English (US)
Pages (from-to)	1912
Journal	Optics Letters
Volume	46
Issue number	8
DOIs	https://doi.org/10.1364/ol.422579
State	Published - Apr 12 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-04-14
Acknowledged KAUST grant number(s): BAS/1/1676-01-01
Acknowledgements: King Abdullah University of Science and Technology (BAS/1/1676-01-01).

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Access to Document

10.1364/ol.422579

https://repository.kaust.edu.sa/bitstream/10754/668715/1/Zhe_green%26red%20microLED_final.pdf

Cite this

@article{33fab8c26767458a9a8e8f893a3d352f,

title = "Investigation of InGaN-based red/green micro-light-emitting diodes",

abstract = "We investigated the performance of InGaN-based red/green micro-light-emitting diodes (µLEDs) ranging from 98 × 98 µm2 to 17 × 17 µm. The average forward voltage at 10 A/cm2 was independent of the dimension of µLEDs. Red µLEDs exhibited a larger blueshift of the peak wavelength (∼35 nm) and broader full-width at half maximum (≥50 nm) at 2−50 A/cm2 compared to green µLEDs. We demonstrated that 47 × 47 µm2 red µLEDs had an on-wafer external quantum efficiency of 0.36% at the peak wavelength of 626 nm, close to the red primary color defined in the recommendation 2020 standard.",

author = "Zhe Zhuang and Daisuke Iida and Kazuhiro Ohkawa",

note = "KAUST Repository Item: Exported on 2021-04-14 Acknowledged KAUST grant number(s): BAS/1/1676-01-01 Acknowledgements: King Abdullah University of Science and Technology (BAS/1/1676-01-01).",

year = "2021",

month = apr,

day = "12",

doi = "10.1364/ol.422579",

language = "English (US)",

volume = "46",

pages = "1912",

journal = "Optics Letters",

issn = "0146-9592",

publisher = "Optical Society of America",

number = "8",

}

TY - JOUR

T1 - Investigation of InGaN-based red/green micro-light-emitting diodes

AU - Zhuang, Zhe

AU - Iida, Daisuke

AU - Ohkawa, Kazuhiro

N1 - KAUST Repository Item: Exported on 2021-04-14 Acknowledged KAUST grant number(s): BAS/1/1676-01-01 Acknowledgements: King Abdullah University of Science and Technology (BAS/1/1676-01-01).

PY - 2021/4/12

Y1 - 2021/4/12

N2 - We investigated the performance of InGaN-based red/green micro-light-emitting diodes (µLEDs) ranging from 98 × 98 µm2 to 17 × 17 µm. The average forward voltage at 10 A/cm2 was independent of the dimension of µLEDs. Red µLEDs exhibited a larger blueshift of the peak wavelength (∼35 nm) and broader full-width at half maximum (≥50 nm) at 2−50 A/cm2 compared to green µLEDs. We demonstrated that 47 × 47 µm2 red µLEDs had an on-wafer external quantum efficiency of 0.36% at the peak wavelength of 626 nm, close to the red primary color defined in the recommendation 2020 standard.

AB - We investigated the performance of InGaN-based red/green micro-light-emitting diodes (µLEDs) ranging from 98 × 98 µm2 to 17 × 17 µm. The average forward voltage at 10 A/cm2 was independent of the dimension of µLEDs. Red µLEDs exhibited a larger blueshift of the peak wavelength (∼35 nm) and broader full-width at half maximum (≥50 nm) at 2−50 A/cm2 compared to green µLEDs. We demonstrated that 47 × 47 µm2 red µLEDs had an on-wafer external quantum efficiency of 0.36% at the peak wavelength of 626 nm, close to the red primary color defined in the recommendation 2020 standard.

UR - http://hdl.handle.net/10754/668715

UR - https://www.osapublishing.org/abstract.cfm?URI=ol-46-8-1912

U2 - 10.1364/ol.422579

DO - 10.1364/ol.422579

M3 - Article

SN - 0146-9592

VL - 46

SP - 1912

JO - Optics Letters

JF - Optics Letters

IS - 8

ER -

Investigation of InGaN-based red/green micro-light-emitting diodes

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this