S
Si Duck Oh
Researcher at Kyung Hee University
Publications - 5
Citations - 83
Si Duck Oh is an academic researcher from Kyung Hee University. The author has contributed to research in topics: Quantum dot & Potential well. The author has an hindex of 3, co-authored 4 publications receiving 67 citations.
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Journal ArticleDOI
Graphene/Si‐Quantum‐Dot Heterojunction Diodes Showing High Photosensitivity Compatible with Quantum Confinement Effect
Dong Hee Shin,Sung Kim,Jong Min Kim,Chan Wook Jang,Ju Hwan Kim,Kyeong Won Lee,Jungkil Kim,Si Duck Oh,Dae Hun Lee,Soo Seok Kang,Chang Oh Kim,Suk-Ho Choi,Kyung Joong Kim +12 more
TL;DR: Graphene/Si quantum dot (QD) heterojunction diodes are reported for the first time and the photoresponse is remarkably enhanced in the near-ultraviolet range compared to commercially available bulk-Si photodetectors.
Journal ArticleDOI
Structural and optical characteristics of graphene quantum dots size-controlled and well-aligned on a large scale by polystyrene-nanosphere lithography
TL;DR: In this paper, a polystyrene (PS)-nanosphere (NS) array is used as an etching mask for a single-layer GQD patterned by reactive ion etching and the size (d) of the GQDs is controlled by varying the etching time.
Journal ArticleDOI
Optical Sensing Properties of ZnO Nanoparticles Prepared by Spray Pyrolysis.
Geon Joon Lee,Eun Ha Choi,Sang-Hun Nam,Jin Su Lee,Jin-Hyo Boo,Si Duck Oh,Suk-Ho Choi,Jun-Haeng Cho,Moon-Young Yoon +8 more
TL;DR: The low-temperature spectra displayed a strong exciton emission peak with multiple sidebands, attributed to the bound exciton and its longitudinal optical phonon sidebands.
Journal ArticleDOI
Sequential structural and optical evolution of MoS 2 by chemical synthesis and exfoliation
TL;DR: In this paper, the authors show that two-dimensional MoS2 allotropes can be obtained by employing only chemical techniques without starting from high-pressure-synthesized bulk MoS 2 crystals.