907 citations
- Agency for Science, Technology and ResearchSG110 papers
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5 papers · 1 filter
Tuning the Threshold Voltage of MoS2 Field-Effect Transistors via Surface Treatment
Wei Sun Leong, Yida Li, Xin Luo +3
Controlling the threshold voltage (Vth) of a field-effect transistor is important for realizing robust logic circuits. Here, we report a facile approach to achieve bidirectional Vt…
Efficiencies of Aloof-Scattered Electron Beam Excitation of Metal and Graphene Plasmons
Kelvin J. A. Ooi, Wee Shing Koh, Hong Son Chu +2
We assessed the efficiencies of surface plasmon excitation by an aloof-scattered electron beam on metals and graphene. Graphene is shown to exhibit high energy transfer efficiencie…
The Electronic Properties of Phosphorene/Graphene and Phosphorene/Hexagonal Boron Nitride Heterostructures
Yongqing Cai, Gang Zhang, Yong-Wei Zhang
Vertical integration of two-dimensional materials has recently emerged as an exciting method for the design of novel electronic and optoelectronic devices. Using density functional…
Large Frequency Change with Thickness in Interlayer Breathing Mode - Significant Interlayer Interactions in Few Layer Black Phosphorus
Xin Luo, Xin Lu, Gavin Kok Wai Koon +4
Bulk black phosphorus (BP) consists of puckered layers of phosphorus atoms. Few-layer BP, obtained from bulk BP by exfoliation, is an emerging candidate as a channel material in po…
Energetics, Charge Transfer and Magnetism of Small Molecules Physisorbed on Phosphorene
Yongqing Cai, Qingqing Ke, Gang Zhang +1
First-principles calculations are performed to investigate the interaction of physisorbed small molecules, including CO, H2, H2O, NH3, NO, NO2, and O2, with phosphorene, and their…