Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs

Dae Hyun Kim, Tae Yeon Seong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In summary, we have systematically investigated size dependent light output, spectra shift in 520 nm InGaN based-uLEDs. Our experimental results confirm that smaller uLEDs can deliver higher power densities and sustain higher current densities. Current density dependence of the EL properties of different-size uLEDs exhibited that the spectral shift was dependent on not only current density but also chip size. The band-combined effects of filling effect and self-heating-induced bandgap shrinkage are responsible for the complicated phenomenon.

Original languageEnglish
Title of host publicationECS Transactions
PublisherElectrochemical Society Inc.
Pages13-18
Number of pages6
Volume85
Edition7
ISBN (Electronic)9781607685395
Publication statusPublished - 2018 Jan 1
EventSymposium on Wide Bandgap Semiconductor Materials and Devices 19 - 233rd ECS Meeting - Seattle, United States
Duration: 2018 May 132018 May 17

Other

OtherSymposium on Wide Bandgap Semiconductor Materials and Devices 19 - 233rd ECS Meeting
CountryUnited States
CitySeattle
Period18/5/1318/5/17

Fingerprint

Nitrides
Light emitting diodes
Current density
Energy gap
Heating

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kim, D. H., & Seong, T. Y. (2018). Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs. In ECS Transactions (7 ed., Vol. 85, pp. 13-18). Electrochemical Society Inc..

Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs. / Kim, Dae Hyun; Seong, Tae Yeon.

ECS Transactions. Vol. 85 7. ed. Electrochemical Society Inc., 2018. p. 13-18.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kim, DH & Seong, TY 2018, Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs. in ECS Transactions. 7 edn, vol. 85, Electrochemical Society Inc., pp. 13-18, Symposium on Wide Bandgap Semiconductor Materials and Devices 19 - 233rd ECS Meeting, Seattle, United States, 18/5/13.
Kim DH, Seong TY. Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs. In ECS Transactions. 7 ed. Vol. 85. Electrochemical Society Inc. 2018. p. 13-18
Kim, Dae Hyun ; Seong, Tae Yeon. / Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs. ECS Transactions. Vol. 85 7. ed. Electrochemical Society Inc., 2018. pp. 13-18
@inproceedings{98456f9991ec4a88be97be3685b338f4,
title = "Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs",
abstract = "In summary, we have systematically investigated size dependent light output, spectra shift in 520 nm InGaN based-uLEDs. Our experimental results confirm that smaller uLEDs can deliver higher power densities and sustain higher current densities. Current density dependence of the EL properties of different-size uLEDs exhibited that the spectral shift was dependent on not only current density but also chip size. The band-combined effects of filling effect and self-heating-induced bandgap shrinkage are responsible for the complicated phenomenon.",
author = "Kim, {Dae Hyun} and Seong, {Tae Yeon}",
year = "2018",
month = "1",
day = "1",
language = "English",
volume = "85",
pages = "13--18",
booktitle = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
edition = "7",

}

TY - GEN

T1 - Influence of size reduction and current density on the optoelectrical properties of green ill-nitride Micro-LEDs

AU - Kim, Dae Hyun

AU - Seong, Tae Yeon

PY - 2018/1/1

Y1 - 2018/1/1

N2 - In summary, we have systematically investigated size dependent light output, spectra shift in 520 nm InGaN based-uLEDs. Our experimental results confirm that smaller uLEDs can deliver higher power densities and sustain higher current densities. Current density dependence of the EL properties of different-size uLEDs exhibited that the spectral shift was dependent on not only current density but also chip size. The band-combined effects of filling effect and self-heating-induced bandgap shrinkage are responsible for the complicated phenomenon.

AB - In summary, we have systematically investigated size dependent light output, spectra shift in 520 nm InGaN based-uLEDs. Our experimental results confirm that smaller uLEDs can deliver higher power densities and sustain higher current densities. Current density dependence of the EL properties of different-size uLEDs exhibited that the spectral shift was dependent on not only current density but also chip size. The band-combined effects of filling effect and self-heating-induced bandgap shrinkage are responsible for the complicated phenomenon.

UR - http://www.scopus.com/inward/record.url?scp=85050206398&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85050206398&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85050206398

VL - 85

SP - 13

EP - 18

BT - ECS Transactions

PB - Electrochemical Society Inc.

ER -