513 citations · 2k across the 20 of their papers we have counts for
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Bridging the gap between atomically thin semiconductors and metal leads
Xiangbin Cai, Zefei Wu, Xu Han +15
Electrically interfacing atomically thin transition metal dichalcogenide semiconductors (TMDSCs) with metal leads is challenging because of undesired interface barriers, which have…
Probing the Electronic States in Black Phosphorus Vertical Heterostructures
Xiaolong Chen, Lin Wang, Yingying Wu +14
Atomically thin black phosphorus (BP) is a promising two-dimensional material for fabricating electronic and optoelectronic nano-devices with high mobility and tunable bandgap stru…
Fast Transfer-free Synthesis of High-quality Monolayer Graphene on Insulating Substrates by Simple Rapid Thermal Treatment
Zefei Wu, Yanqing Guo, Yuzheng Guo +13
The transfer-free synthesis of high-quality, large-area graphene on a given dielectric substrate, which is highly desirable for device applications, remains a significant challenge…
Universal low-temperature Ohmic contacts for quantum transport in transition metal dichalcogenides
Shuigang Xu, Zefei Wu, Huanhuan Lu +14
Low carrier mobility and high electrical contact resistance are two major obstacles prohibiting explorations of quantum transport in TMDCs. Here, we demonstrate an effective method…
High quality sandwiched black phosphorus heterostructure and its quantum oscillations
Xiaolong Chen, Yingying Wu, Zefei Wu +8
Two-dimensional (2D) materials, such as graphene and transition metal dichalcogenides have attracted great attention because of the rich physics and potential applications in next-…
Detection of Interlayer Interaction in Few-layer Graphene through Landau Level Spectroscopy
Zefei Wu, Yu Han, Wei Zhu +12
We demonstrate that surface relaxation, which is insignificant in trilayer graphene, starts to manifest in Bernal-stacked tetralayer graphene. Bernal-stacked few-layer graphene has…
Dense network of one-dimensional mid-gap metallic modes in monolayer MoSe2 and their spatial undulations
Hongjun Liu, Lu Jiao, Fang Yang +9
We report the observation of a dense triangular network of one-dimensional (1D) metallic modes in a continuous and uniform monolayer of MoSe2 grown by molecular-beam epitaxy. High-…
Probing the Electron States and Metal-Insulator Transition Mechanisms in Atomically Thin MoS2 Based on Vertical Heterostructures
Xiaolong Chen, Zefei Wu, Shuigang Xu +12
The metal-insulator transition (MIT) is one of the remarkable electrical transport properties of atomically thin molybdenum disulphide (MoS2). Although the theory of electron-elect…