J
Juwon Lee
Researcher at University of Oxford
Publications - 62
Citations - 3009
Juwon Lee is an academic researcher from University of Oxford. The author has contributed to research in topics: Graphene & Quantum dot. The author has an hindex of 21, co-authored 56 publications receiving 2193 citations. Previous affiliations of Juwon Lee include Lawrence Berkeley National Laboratory & Dongguk University.
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Journal ArticleDOI
Resonantly hybridized excitons in moiré superlattices in van der Waals heterostructures
Evgeny M. Alexeev,David A. Ruiz-Tijerina,David A. Ruiz-Tijerina,Mark Danovich,Matthew J. Hamer,Daniel J. Terry,Pramoda K. Nayak,Pramoda K. Nayak,Seongjoon Ahn,Sangyeon Pak,Juwon Lee,Jung Inn Sohn,Jung Inn Sohn,Maciej R. Molas,Maciej R. Molas,Maciej Koperski,Kenji Watanabe,Takashi Taniguchi,Kostya S. Novoselov,Roman V. Gorbachev,Roman V. Gorbachev,Hyeon Suk Shin,Vladimir I. Fal'ko,Vladimir I. Fal'ko,Alexander I. Tartakovskii +24 more
TL;DR: It is demonstrated that excitonic bands in MoSe2/WS2 heterostructures can hybridize, resulting in a resonant enhancement of moiré superlattice effects, which underpin strategies for band-structure engineering in semiconductor devices based on van der Waals heterostructure.
Journal ArticleDOI
Resonantly hybridised excitons in moir\'e superlattices in van der Waals heterostructures
Evgeny M. Alexeev,David A. Ruiz-Tijerina,Mark Danovich,Matthew J. Hamer,Daniel J. Terry,Pramoda K. Nayak,Seongjoon Ahn,Sangyeon Pak,Juwon Lee,Jung Inn Sohn,Maciej R. Molas,Maciej Koperski,Kenji Watanabe,Takashi Taniguchi,Kostya S. Novoselov,Roman V. Gorbachev,Hyeon Suk Shin,Vladimir I. Fal'ko,Alexander I. Tartakovskii +18 more
TL;DR: In this article, the authors demonstrate that in semiconducting heterostructures built of incommensurate MoSe2 and WS2 monolayers, excitonic bands can hybridise, resulting in the resonant enhancement of the moire superlattice effects.
Journal ArticleDOI
Characterization and manipulation of individual defects in insulating hexagonal boron nitride using scanning tunnelling microscopy
Dillon Wong,Jairo Velasco,Long Ju,Juwon Lee,Salman Kahn,Hsin-Zon Tsai,Takashi Taniguchi,Kenji Watanabe,Alex Zettl,Alex Zettl,Feng Wang,Feng Wang,Michael F. Crommie,Michael F. Crommie +13 more
TL;DR: In this paper, the authors used a graphene/boron nitride heterostructure to enable the visualization of defect phenomena in the underlying bulk boron nano-insulator.
Journal ArticleDOI
Imaging electrostatically confined Dirac fermions in graphene quantum dots
Juwon Lee,Dillon Wong,Jairo Velasco,Jairo Velasco,Joaquin F. Rodriguez-Nieva,Salman Kahn,Hsin-Zon Tsai,Takashi Taniguchi,Kenji Watanabe,Alex Zettl,Alex Zettl,Feng Wang,Feng Wang,Leonid Levitov,Michael F. Crommie,Michael F. Crommie +15 more
TL;DR: In this paper, the authors used scanning tunnelling microscopy to map the electronic structure of Dirac fermions confined in quantum dots defined by circular graphene p-n junctions.
Journal ArticleDOI
Monolayer optical memory cells based on artificial trap-mediated charge storage and release.
Juwon Lee,Sangyeon Pak,Young-Woo Lee,Yuljae Cho,John Hong,Paul Giraud,Hyeon Suk Shin,Stephen M. Morris,Jung Inn Sohn,SeungNam Cha,Jong Min Kim +10 more
TL;DR: These monolayer MoS2 optoelectronic memory devices exhibit excellent photo-responsive memory characteristics with a large linear dynamic range, coupled with a low OFF-state current (<4 pA), and a long storage lifetime of over 104 s.