C
Cheolsoo Sone
Researcher at Samsung
Publications - 94
Citations - 5181
Cheolsoo Sone is an academic researcher from Samsung. The author has contributed to research in topics: Light-emitting diode & Layer (electronics). The author has an hindex of 35, co-authored 94 publications receiving 4868 citations. Previous affiliations of Cheolsoo Sone include Rensselaer Polytechnic Institute.
Papers
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Journal ArticleDOI
Anomalous behaviors of visible luminescence from graphene quantum dots: interplay between size and shape.
Sung Kim,Sung Won Hwang,Min Kook Kim,Dong Yeol Shin,Dong Hee Shin,Chang Oh Kim,Seung Bum Yang,Jae Hee Park,Euyheon Hwang,Suk-Ho Choi,Ko Geun-Woo,Sung-hyun Sim,Cheolsoo Sone,Hyoung Joon Choi,Sukang Bae,Byung Hee Hong +15 more
TL;DR: In this paper, size-dependent shape/edge-state variations of GQDs and visible photoluminescence (PL) showing anomalous size dependences were investigated.
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Polarization-matched GaInN∕AlGaInN multi-quantum-well light-emitting diodes with reduced efficiency droop
Martin F. Schubert,Jiuru Xu,Jong Kyu Kim,E. Fred Schubert,Min-Ho Kim,Sukho Yoon,Soo Min Lee,Cheolsoo Sone,T. Sakong,Yongjo Park +9 more
TL;DR: The use of quaternary alloys enables an independent control over interface polarization charges and bandgap and has been suggested as a method to reduce electron leakage from the active region, a carrier loss mechanism that can reduce efficiency at high injection currents as mentioned in this paper.
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Enhanced light extraction from GaN-based light-emitting diodes with holographically generated two-dimensional photonic crystal patterns
Dongho Kim,Chi-O Cho,Yeong-Geun Roh,Heonsu Jeon,Yoon Soo Park,Jaehee Cho,Jin Seo Im,Cheolsoo Sone,Yongjo Park,Wonjun Choi,Q-Han Park +10 more
TL;DR: In this article, two-dimensional square-lattice airhole array patterns with a period that varied from 300 to 700 nm were generated by laser holography, and the resultant PC-LED devices with a pattern period of ∼500nm had more than double the output power, as measured from the top of the device.
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Strongly Enhanced Phosphor Efficiency in GaInN White Light-Emitting Diodes Using Remote Phosphor Configuration and Diffuse Reflector Cup
TL;DR: In this paper, a GaInN-based white light-emitting diodes (LEDs) employing a large separation between the primary LED emitter and the wavelength converter, and a diffuse reflector cup, is reported.
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Visible‐Color‐Tunable Light‐Emitting Diodes
Young Joon Hong,Chul Ho Lee,Chul Ho Lee,Aram Yoon,Miyoung Kim,Han Kyu Seong,Hun Jae Chung,Cheolsoo Sone,Yong Jo Park,Gyu-Chul Yi +9 more
TL;DR: The fabrication and characteristics of monolithic, full-color, tunable LEDs, whose EL color can be tuned continuously from red to blue by adjusting the external electric bias are reported on.