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Researcher Name Resolver ID: 1000030817359

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Employment (2)

EtaMax: Suwon, KR

Employment
Source: Self-asserted source
Joosun Yun

RIKEN: Wako, JP

2017-06-01 to 2021-03-31
Employment
Source: Self-asserted source
Joosun Yun

Education and qualifications (1)

Hanyang University: Seoul, KR

Dr
Education
Source: Self-asserted source
Joosun Yun

Funding (1)

Searching new operation area for QCL by Gain Mapping using NEGF

2018-04-01 to 2021-03-31 | Grant
Japan Society for the Promotion of Science (Tokyo, JP)
URL: https://app.dimensions.ai/details/grant/grant.7531081
GRANT_NUMBER: 18K04251
Source: Self-asserted source
Joosun Yun via DimensionsWizard

Works (21)

Enhanced size-dependent efficiency of InGaN/AlGaN near-ultraviolet micro-LEDs

Applied Physics Letters
2025-01-27 | Journal article
DOI: 10.1063/5.0237557
Contributors: Abu Bashar Mohammad Hamidul Islam; Tae Kyoung Kim; Yu-Jung Cha; Joosun Yun; June-O Song; Dong-Soo Shin; Jong-In Shim; Joon Seop Kwak
Source: check_circle
Crossref

Extracting Time-Constant Spectra by the Subspace Barzilai and Borwei Non-Negative Least Square Algorithm

2024 30th International Workshop on Thermal Investigations of ICs and Systems (THERMINIC)
2024-09-25 | Conference paper
DOI: 10.1109/therminic62015.2024.10732283
Contributors: Joosun Yun; Byongjin Ma; Guesuk Lee; Tae-Hee Jung; Dong-Soo Shin; Youngbeom Kim; Hyundon Jung
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Surface-emitting photonic crystal terahertz quantum cascade laser adopting uniform triangular prism photonic crystal with a double-metal waveguide

Japanese Journal of Applied Physics
2022-06-01 | Journal article
DOI: 10.35848/1347-4065/ac5a00
Contributors: Joosun Yun; Tsung-Tse Lin; Hideki Hirayama
Source: check_circle
Crossref

Achieving 9.6% efficiency in 304 nm p-AlGaN UVB LED via increasing the holes injection and light reflectance

Scientific Reports
2022-02-16 | Journal article
DOI: 10.1038/s41598-022-04876-x
Part of ISSN: 2045-2322
Contributors: M. Ajmal Khan; Noritoshi Maeda; Joosun Yun; Masafumi Jo; Yoichi Yamada; Hideki Hirayama
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Investigation of Light-Extraction Efficiency of Flip-Chip AlGaN-Based Deep-Ultraviolet Light-Emitting Diodes Adopting AlGaN Metasurface

IEEE Photonics Journal
2021-02 | Journal article
DOI: 10.1109/JPHOT.2021.3054914
Contributors: Joosun Yun; Hideki Hirayama
Source: check_circle
Crossref

AlGaN metasurface to increase the light-extraction efficiency of deep ultraviolet light-emitting diodes by perfect transmittance before critical angle

Metamaterials XII
2020-04-01 | Conference paper
DOI: 10.1117/12.2553047
Contributors: Joosun Yun; Hideki Hirayama; Kevin F. MacDonald; Anatoly V. Zayats; Isabelle Staude
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Random electric field induced by interface roughness in GaN/Al<sub>x</sub>Ga<sub>1āˆ’x</sub>N multiple quantum wells

Applied Physics Express
2019-11-21 | Journal article
DOI: 10.7567/1882-0786/ab548a
Part of ISSN: 1882-0786
Contributors: Joosun Yun; Dong-Pyo Han; Hideki Hirayama
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Reflectance of a reflective photonic crystal p-contact layer for improving the light-extraction efficiency of AlGaN-based deep-ultraviolet light-emitting diodes

AIP Advances
2018-12-01 | Journal article
DOI: 10.1063/1.5062603
Part of ISSN: 2158-3226
Contributors: Joosun Yun; Yukio Kashima; Hideki Hirayama
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Broadening mechanisms and self-consistent gain calculations for GaN quantum cascade laser structures

Applied Physics Letters
2018-08-06 | Journal article
DOI: 10.1063/1.5029520
Part of ISSN: 1077-3118
Contributors: Ke Wang; Thomas Grange; Tsung-Tse Lin; Li Wang; ZoltƔn JƩhn; Stefan Birner; Joosun Yun; Wataru Terashima; Hideki Hirayama
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Enhancing the light-extraction efficiency of AlGaN deep-ultraviolet light-emitting diodes using highly reflective Ni/Mg and Rh as p-type electrodes

Japanese Journal of Applied Physics
2018-03-15 | Journal article
DOI: 10.7567/jjap.57.04fh08
Part of ISSN: 1347-4065
Contributors: Noritoshi Maeda; Joosun Yun; Masafumi Jo; Hideki Hirayama
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Investigation of the light-extraction efficiency in 280 nm AlGaN-based light-emitting diodes having a highly transparent p-AlGaN layer

Journal of Applied Physics
2017-01-07 | Journal article
DOI: 10.1063/1.4973493
Contributors: Joosun Yun; Hideki Hirayama
Source: check_circle
Crossref

Analysis of efficiency droop in 280-nm AlGaN multiple-quantum-well light-emitting diodes based on carrier rate equation

Applied Physics Express
2015-01-22 | Journal article
DOI: 10.7567/apex.8.022104
Part of ISSN: 1882-0786
Contributors: Joosun Yun; Jong-In Shim; Hideki Hirayama
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Graphene interlayer for current spreading enhancement by engineering of barrier height in GaN-based light-emitting diodes

Optics Express
2014-05-23 | Journal article
DOI: 10.1364/oe.22.0a1040
Part of ISSN: 1094-4087
Contributors: Jung-Hong Min; Myungwoo Son; Si-Young Bae; Jun-Yeob Lee; Joosun Yun; Min-Jae Maeng; Dae-Gyeon Kwon; Yongsup Park; Jong-In Shim; Moon-Ho Ham et al.
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Correlation between the efficiency droop and the blueshift of the electroluminescence in InGaN/GaN multiple-quantum-well blue light-emitting diodes

Journal of the Korean Physical Society
2013-09 | Journal article
DOI: 10.3938/jkps.63.1218
Part of ISSN: 1976-8524
Contributors: Joosun Yun; Hye-Seung Yeom; Jong-In Shim; Dong-Soo Shin
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Current, voltage and temperature distribution modeling of light-emitting diodes based on electrical and thermal circuit analysis

Semiconductor Science and Technology
2013-05-31 | Journal article
DOI: 10.1088/0268-1242/28/8/085001
Part of ISSN: 1361-6641
Contributors: J Yun; J-I Shim; D-S Shin
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Investigation of Dominant Nonradiative Mechanisms as a Function of Current in InGaN/GaN Light-Emitting Diodes

Applied Physics Express
2013-05-01 | Journal article
DOI: 10.7567/apex.6.052105
Part of ISSN: 1882-0786
Contributors: Il-Gyun Choi; Dong-Pyo Han; Joosun Yun; Kyu Sang Kim; Dong-Soo Shin; Jong-In Shim
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Three-Dimensional Analysis of Temperature Distributions Based on Circuit Modeling of Light-Emitting Diodes

IEEE Transactions on Electron Devices
2012-06 | Journal article
DOI: 10.1109/ted.2012.2189571
Part of ISSN: 1557-9646
Contributors: Joosun Yun; Dong-Pyo Han; Jong-In Shim; Dong-Soo Shin
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Optical and Electrical Characteristics of GaN-based Blue LEDs after Low-current Stress

Korean Journal of Optics and Photonics
2012-04-25 | Journal article
DOI: 10.3807/kjop.2012.23.2.064
Part of ISSN: 1225-6285
Contributors: Seo-Hee Kim; Joo-Sun Yun; Dong-Soo Shin; Jong-In Shim
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Enhancing current spreading by simple electrode pattern design methodology in lateral GaN/InGaN LEDs

Electronics Letters
2009-06-18 | Journal article
DOI: 10.1049/el.2009.0803
Part of ISSN: 1350-911X
Contributors: J.S. Yun; J.I. Shim; D.S. Shin
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Current spreading and its related issues in GaN-based light emitting diodes

SPIE Proceedings
2009-02-12 | Conference paper
DOI: 10.1117/12.808393
Part of ISSN: 0277-786X
Contributors: Jong-In Shim; Joosun Yun; Hyunsung Kim; Hadis MorkoƧ; Cole W. Litton; Jen-Inn Chyi; Yasushi Nanishi; Joachim Piprek; Euijoon Yoon
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Current spreading analysis in vertical electrode GaN-based blue LEDs

SPIE Proceedings
2007-11-29 | Conference paper
DOI: 10.1117/12.756517
Part of ISSN: 0277-786X
Contributors: Joo Sun Yun; Sung Min Hwang; Jong In Shim; Yuwen Zhao; Nuofu Chen; Vladimir M. Andreev; Jai Singh; Jinmin Li; Ling Wu; Yubo Fan et al.
Source: Self-asserted source
Joosun Yun via Crossref Metadata Search

Peer review (2 reviews for 2 publications/grants)

Review activity for AIP advances. (1)
Review activity for Langmuir : (1)
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