Browse "Dept. of Physics(물리학과)" by Author Yoo, Yang-Seok
Showing results 1 to 19 of 19
| Analysis on the efficiency droop and its solutions in InGaN-based light emitting diodes = InGaN 기반 발광다이오드의 효율 저하 문제 분석 및 극복 방안 연구link Yoo, Yang-Seok; Cho, Yong-Hoon; et al, 한국과학기술원, 2016 |
| Axial Inhomogeneity of Mg-doped GaN Rods: A Strong Correlation Among Componential, Electrical, and Optical Analyses Choi, Sunghan; Song, Hyun Gyu; Yoo, Yang-Seok; Lee, Chulwon; Woo, Kie Young; Lee, Eunhyung; Roh, Sungwon David; et al, ACS PHOTONICS, v.5, no.7, pp.2825 - 2833, 2018-07 |
| Carrier dynamics analysis for efficiency droop in GaN-based light-emitting diodes with different defect densities using time-resolved electroluminescence Yoo, Yang-Seok; Na, Jong-Ho; Son, Sung Jin; Cho, Yong-Hoon, JOURNAL OF PHYSICS D-APPLIED PHYSICS, v.49, no.9, pp.095101, 2016-03 |
| Carrier dynamics study on efficiency droop in light emitting devices by means of time-resolved electroluminescence Cho, Yong-Hoon; Kwon, Bong-Joon; Lee, Song-Mei; Yoo, Yang-Seok, 16th International Conference on Metal Organic Vapor Phase Epitaxy, ICMOVPE, 2012-05-23 |
| Controlling optical properties of Ge-on-Si by thermal annealing and etching process Lee, Chulwon; Ki, Bugeun; Yoo, Yang-Seok; Jang, Minho; Oh, Jungwoo; Cho, Yong-Hoon, 11th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2015, Institute of Electrical and Electronics Engineers Inc., 2015-08 |
Effective suppression of efficiency droop in GaN-based light-emitting diodes: role of significant reduction of carrier density and built-in field Yoo, Yang-Seok; Na, Jong-Ho; Son, Sung Jin; Cho, Yong-Hoon, SCIENTIFIC REPORTS, v.6, pp.34586, 2016-10 |
| Electrically driven, highly efficient three-dimensional GaN-based light emitting diodes fabricated by self-aligned twofold epitaxial lateral overgrowth Yoo, Yang-Seok; Song, Hyun Gyu; Jang, Minho; Lee, Sang-Won; Cho, Yong-Hoon, SCIENTIFIC REPORTS, v.7, pp.9663, 2017-08 |
| Formation of a-plane facets in three-dimensional hexagonal GaN structures for photonic devices Lim, Seung-Hyuk; Sim, Young Chul; Yoo, Yang-Seok; Choi, Sunghan; Lee, Sangwon; Cho, Yong-Hoon, SCIENTIFIC REPORTS, v.7, pp.9356, 2017-08 |
| Inclined angle-controlled growth of GaN nanorods on m-sapphire by metal organic chemical vapor deposition without a catalyst Lee, Kyuseung; Chae, Sooryong; Jang, Jongjin; Min, Daehong; Kim, Jaehwan; Eom, Daeyong; Yoo, Yang-Seok; et al, NANOTECHNOLOGY, v.26, no.33, pp.335601, 2015-08 |
| Influence of defect reduction and strain relaxation on carrier dynamics in InGaN-based light-emitting diodes on cone-shaped patterned sapphire substrates Lee, Kyu-Seung; Isnaeni; Yoo, Yang-Seok; Lee, Jae-Hoon; Kim, Yong-Chun; Cho, Yong-Hoon, JOURNAL OF APPLIED PHYSICS, v.113, no.17, pp.173512-1 - 173512-5, 2013-05 |
| Interplay of strain and intermixing effects on direct-bandgap optical transition in strained Ge-on-Si under thermal annealing Lee, Chulwon; Yoo, Yang-Seok; Ki, Bugeun; Jang, Minho; Lim, Seung-Hyuk; Song, Hyun Gyu; Cho, Jong-Hoi; et al, SCIENTIFIC REPORTS, v.9, pp.11709, 2019-08 |
| (Oral) Comparative investigation of induced electroluminescence in InGaN/GaN light-emitting diodes with open- and short-circuit conditions Cho, Yong-Hoon; Lim, Seung-Hyuk; Yoo, Yang-Seok, SPIE Photonics West 2013, SPIE Photonics West 2013, 2013-02-07 |
| (Oral) Orientation-controlled Growth of Inclined GaN Nanorods on M-sapphire by Metal Organic Chemical Vapor Deposition Without Catalyst Lee, K. S.; Cho, Yong-Hoon; Chae, S. Y.; Jang, J. J.; Min, D. H.; Kim, Je-Hyung; Yoo, Yang-Seok; et al, The 7th Asia-Pacific Workshop on Widegap Semiconductors (APWS 2015), The 7th Asia-Pacific Workshop on Widegap Semiconductors (APWS 2015), 2015-05-20 |
| (Poster) Highly efficient phosphor-free warm white light emission based on InGaN/GaN dodecagonal ring structures Sim, Young Chul; Cho, Yong-Hoon; Lim, Seung-Hyuk; Yoo, Yang-Seok; Jang, Minho, 12th International conference on Niride semiconductors, European materials research society, 2017-07-26 |
| Real-time monitoring and visualization of the multidimensional motion of an anisotropic nanoparticle Go, Gi Hyun; Heo, Seungjin; Cho, Jong-Hoi; Yoo, Yang-Seok; Kim, Min Kwan; Park, Chunghyun; Cho, Yong-Hoon, SCIENTIFIC REPORTS, v.7, pp.44167, 2017-03 |
| Simple analysis method for determining internal quantum efficiency and relative recombination ratios in light emitting diodes Yoo, Yang-Seok; Roh, Tae-Moo; Na, Jong-Ho; Son, Sung Jin; Cho, Yong-Hoon, APPLIED PHYSICS LETTERS, v.102, no.21, pp.211107, 2013-05 |
| Strong correlation between efficiency and carrier recombination processes in efficiency droop of GaN based light-emitting diodes Yoo, Yang-Seok; Na, Jong-Ho; Son, Sung Jin; Cho, Yong-Hoon, 11th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2015, Institute of Electrical and Electronics Engineers Inc., 2015-08 |
| Three-dimensional GaN dodecagonal ring structures for highly efficient phosphor-free warm white light-emitting diodes Sim, Young Chul; Lim, Seung-Hyuk; Yoo, Yang-Seok; Jang, Minho; Choi, Sunghan; Yeo, Hwan-Seop; Woo, Kie Young; et al, NANOSCALE, v.10, no.10, pp.4686 - 4695, 2018-03 |
| Vertically aligned InGaN nanowires with engineered axial In composition for highly efficient visible light emission Ebaid, Mohamed; Kang, Jin-Ho; Yoo, Yang-Seok; Lim, Seung-Hyuk; Cho, Yong-Hoon; Ryu, Sang-Wan, SCIENTIFIC REPORTS, v.5, pp.17003, 2015-11 |
Discover
Type
- 5,713 Article
- 4,334 Conference
- 460 Patent
- 963 Thesis(Master)
- 947 Thesis(Ph.D)
Open Access
Date issued
- 1,217 2020 - 2024
- 3,824 2010 - 2019
- 3,275 2000 - 2009
- 2,723 1990 - 1999
- 1,039 1980 - 1989