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Dawei Zhai
Researcher at Ohio University
Publications - 28
Citations - 416
Dawei Zhai is an academic researcher from Ohio University. The author has contributed to research in topics: Graphene & Medicine. The author has an hindex of 10, co-authored 18 publications receiving 322 citations. Previous affiliations of Dawei Zhai include Beijing Institute of Technology & University of Hong Kong.
Papers
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Journal ArticleDOI
Tuning the Pseudospin Polarization of Graphene by a Pseudomagnetic Field
A. Georgi,Péter Nemes-Incze,Ramon Carrillo-Bastos,Ramon Carrillo-Bastos,Daiara Faria,Daiara Faria,Silvia Viola Kusminskiy,Silvia Viola Kusminskiy,Dawei Zhai,Martin Schneider,D. Subramaniam,T. Mashoff,Nils M. Freitag,Marcus Liebmann,Marco Pratzer,Ludger Wirtz,Colin R. Woods,Roman V. Gorbachev,Yang Cao,Kostya S. Novoselov,Nancy Sandler,Markus Morgenstern +21 more
TL;DR: It is shown that a signature of the pseudomagnetic field is a local sublattice symmetry breaking observable as a redistribution of the local density of states in graphene, which can be interpreted as a polarization of graphene's pseudospin due to a strain induced pseudom magnetic field.
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Experimental Observation of Giant Chiroptical Amplification of Small Chiral Molecules by Gold Nanosphere Clusters
Rongyao Wang,Peng Wang,Yineng Liu,Wenjing Zhao,Dawei Zhai,Xuhai Hong,Yinglu Ji,Xiaochun Wu,Feng Wang,Duan Zhang,Wensheng Zhang,Ruibin Liu,Xiangdong Zhang +12 more
TL;DR: In this article, the authors experimentally observed around 2 orders of magnitude circular dichroism (CD) enhancement in the visible region for cysteine molecules located in the hotspots of gold nanosphere clusters.
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Local versus extended deformed graphene geometries for valley filtering
Dawei Zhai,Nancy Sandler +1 more
TL;DR: In this paper, a comprehensive comparison of two typical deformations commonly found in graphene samples: local centrosymmetric bubbles and extended folds/wrinkles is presented, while numerical transmission matrix methods are used for the foldlike deformations.
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Quantum Wires and Waveguides Formed in Graphene by Strain.
Yong Wu,Dawei Zhai,Cheng Pan,Bin Cheng,Takashi Taniguchi,Kenji Watanabe,Nancy Sandler,Marc Bockrath +7 more
TL;DR: The results show that graphene folds can act as straintronic quantum wires, and transport studies of nanowires created by linearly-shaped strained regions resulting from individual folds formed by layer transfer onto hexagonal boron nitride are reported.
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Plasmonic polymers with strong chiroptical response for sensing molecular chirality
Dawei Zhai,Peng Wang,Rongyao Wang,Xiaorui Tian,Yinglu Ji,Wenjing Zhao,Luming Wang,Hong Wei,Xiaochun Wu,Xiangdong Zhang +9 more
TL;DR: It is shown that by regulating the bond angles between adjacent nanorods and the degree of polymerization in the linear plasmonic polymer, weak molecular chirality in the ultraviolet spectral region can be amplified by more than two orders of magnitude via the induced CD response in the visible/near infrared region.