D
Dong Hee Park
Researcher at Korea Institute of Science and Technology
Publications - 51
Citations - 1485
Dong Hee Park is an academic researcher from Korea Institute of Science and Technology. The author has contributed to research in topics: Quantum dot & Thin film. The author has an hindex of 14, co-authored 50 publications receiving 1348 citations. Previous affiliations of Dong Hee Park include University of Illinois at Urbana–Champaign.
Papers
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Journal ArticleDOI
Emissive ZnO–graphene quantum dots for white-light-emitting diodes
Dong Ick Son,Byoung Wook Kwon,Dong Hee Park,Won Seon Seo,Yeonjin Yi,Basavaraj Angadi,Chang-Lyoul Lee,Won Kook Choi +7 more
TL;DR: A simple solution method is used to prepare emissive hybrid quantum dots consisting of a ZnO core wrapped in a shell of single-layer graphene to make a white-light-emitting diode, and two additional blue emission peaks are observed in the luminescent spectrum of the quantum dot.
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Carrier transport in flexible organic bistable devices of ZnO nanoparticles embedded in an insulating poly(methyl methacrylate) polymer layer.
TL;DR: Current-voltage measurement on the Al/ZnO nanoparticles embedded in an insulating PMMA polymer layer/ITO/PET structures at 300 K showed a nonvolatile electrical bistability behavior with a flat-band voltage shift due to the existence of the ZnO nano- nanoparticles, indicative of trapping, storing, and emission of charges in the electronic states of theZnN nanoparticles.
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Bistable Organic Memory Device with Gold Nanoparticles Embedded in a Conducting Poly(N-vinylcarbazole) Colloids Hybrid
Dong Ick Son,Dong Ick Son,Dong Hee Park,Jong Bin Kim,Ji-Won Choi,Tae Whan Kim,Basavaraj Angadi,Yeonjin Yi,Won Kook Choi +8 more
TL;DR: In this paper, hole-mediated bistable organic memory (BOM) devices with Au nanoparticles (NPs) embedded in a conducting poly(N-vinylcarbazole) (PVK) colloids hybrid layer deposited on flexible poly(ethyleneterephthalate) (PET) substrates were investigated.
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Nonvolatile flexible organic bistable devices fabricated utilizing CdSe/ZnS nanoparticles embedded in a conducting poly N-vinylcarbazole polymer layer
TL;DR: Results indicate that OBDs fabricated by embedding inorganic CdSe/ZnS nanoparticles in a conducting polymer matrix on flexible substrates are prospects for potential applications in flexible nonvolatile flash memory devices.
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Cu-doped ZnO-based p–n hetero-junction light emitting diode
Jongtae Kim,Dongjin Byun,Sangyub Ie,Dong Hee Park,Won Kook Choi,Ji-Won Choi,Basavaraj Angadi +6 more
TL;DR: In this article, a p-n hetero-junction with p-Cu:ZnO/n-6H:SiC was successfully fabricated and demonstrated as a greenish-blue light emitting diode (LED).