B
Beo Deul Ryu
Researcher at Chonbuk National University
Publications - 51
Citations - 737
Beo Deul Ryu is an academic researcher from Chonbuk National University. The author has contributed to research in topics: Light-emitting diode & Graphene. The author has an hindex of 13, co-authored 50 publications receiving 617 citations.
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Journal ArticleDOI
Improved heat dissipation in gallium nitride light-emitting diodes with embedded graphene oxide pattern
Nam Han,Tran Viet Cuong,Min Han,Beo Deul Ryu,S. Chandramohan,Jong Bae Park,Ji Hye Kang,Young Jae Park,Kang Bok Ko,Hee Yun Kim,Hyun Kyu Kim,Jae Hyoung Ryu,Y. S. Katharria,Chel-Jong Choi,Chang-Hee Hong +14 more
TL;DR: It is demonstrated that the embedded graphene oxide in a gallium nitride light-emitting diode alleviates the self-heating issues by virtue of its heat-spreading ability and reducing the thermal boundary resistance.
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Rapid synthesis of sphere-like Cu2ZnSnS4 microparticles by microwave irradiation
TL;DR: In this article, a pioneering attempt has been made for the rapid synthesis of Cu2ZnSnS4 (CZTS) microspheres by the microwave-assisted solution method.
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Impact of interlayer processing conditions on the performance of GaN light-emitting diode with specific NiOx/graphene electrode.
S. Chandramohan,Ji Hye Kang,Beo Deul Ryu,Jong Han Yang,Seongjun Kim,Hynsoo Kim,Jong Bae Park,Taek Kim,Byung Jin Cho,Eun-Kyung Suh,Chang-Hee Hong +10 more
TL;DR: New insights are provided into the behavior of different interlayers under processing conditions that will be useful for the future development of opto-electronic devices with graphene-based electrodes.
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Chemically modified multilayer graphene with metal interlayer as an efficient current spreading electrode for InGaN/GaN blue light-emitting diodes
S. Chandramohan,Ji Hye Kang,Y. S. Katharria,Nam Han,Yun Seon Beak,Kang Bok Ko,Jong Bae Park,Beo Deul Ryu,Hyun Kyu Kim,Eun-Kyung Suh,Chang-Hee Hong +10 more
TL;DR: In this paper, the fabrication and performance of InGaN/GaN blue light-emitting diodes (LEDs) with multilayer graphene film as a current spreading electrode is described.
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Trap-state-assisted white light emission from a CdSe nanocrystal integrated hybrid light-emitting diode
TL;DR: This Letter reports on the fabrication of hybrid white-light-emitting diodes made of semiconductor nanocrystals (NCs) integrated on InGaN/GaN LEDs using core type and core/shell type CdSe NCs, the white light properties are systematically engineered for white light generation with high color rendering index (CRI).