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Yongwoo Kwon
Researcher at Hongik University
Publications - 40
Citations - 1015
Yongwoo Kwon is an academic researcher from Hongik University. The author has contributed to research in topics: Resistive random-access memory & Electrochemistry. The author has an hindex of 13, co-authored 33 publications receiving 859 citations. Previous affiliations of Yongwoo Kwon include Samsung & Northwestern University.
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Journal ArticleDOI
Over 40 cd/A efficient green quantum dot electroluminescent device comprising uniquely large-sized quantum dots.
Ki-Heon Lee,Jeong-Hoon Lee,Hee-Don Kang,Byoungnam Park,Yongwoo Kwon,Hee-Joo Ko,Chang-Ho Lee,Jong-hyuk Lee,Heesun Yang +8 more
TL;DR: It is found that the presence of an additional ZnS shell makes a profound impact on device performances such as luminance and efficiencies, specifically showing unprecedented values of peak current efficiency of 46.4 cd/A and external quantum efficiency of 12.6%.
Journal ArticleDOI
Enhanced Endurance Organolead Halide Perovskite Resistive Switching Memories Operable under an Extremely Low Bending Radius
Jaeho Choi,Quyet Van Le,Kootak Hong,Cheon Woo Moon,Ji Su Han,Ki Chang Kwon,Pil-Ryung Cha,Yongwoo Kwon,Soo Young Kim,Ho Won Jang +9 more
TL;DR: A performance-enhanced OHP resistive switching device that shows an excellent performance as insulating layers in Ag/CH3NH3PbI3/Pt cells, with an endurance of over 103 cycles, a high on/off ratio of 106, and an operation speed of 640 μs and without electroforming is reported.
Proceedings ArticleDOI
PRAM cell technology and characterization in 20nm node size
Myung-Gil Kang,Tai-su Park,Yongwoo Kwon,Dong-ho Ahn,Youn-Seon Kang,H.S. Jeong,S.J. Ahn,Yoon-Jong Song,Byeung-Chul Kim,S.W. Nam,H. K. Kang,Gitae Jeong,Chilhee Chung +12 more
TL;DR: In this paper, the authors reported characteristics of 20nm PRAM cell with optimized diode integration process and improved implantation technology to satisfy the required diode on current (Ion) with low off-current (Ioff).
Journal ArticleDOI
Additive-Free Hollow-Structured Co3O4 Nanoparticle Li-Ion Battery: The Origins of Irreversible Capacity Loss
Youngjun Kim,Jung Hyun Lee,Sungeun Cho,Yongwoo Kwon,Insik In,Ji-Hoon Lee,Nam Ho You,Elsa Reichmanis,Hyungduk Ko,Kyu-Tae Lee,Kyu-Tae Lee,Hyun Keun Kwon,Hyun Keun Kwon,Doo-Hyun Ko,Heesun Yang,Byoungnam Park +15 more
TL;DR: The origin of the initial irreversible capacity loss from the first lithiation process was addressed through probing changes in the electronic and structural properties of hollow-structured Co3O4 nanoparticles (NPs) during lithiation and delithiation using electrochemical Co 3O4 transistor devices that function as a Co3 O4 Li-ion battery.
Journal ArticleDOI
Remote-type, high-color gamut white light-emitting diode based on InP quantum dot color converters
TL;DR: In this article, a color-pure green-and red-emitting non-Cd InP/ZnS core/shell quantum dots (QDs) and their utilization as color converters for the fabrication of display backlighting QD-based white light emitting diode (LED) was reported.