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Thickness-Dependent Polaron Crossover in Tellurene
Kunyan Zhang, Chuliang Fu, Shelly Kelly +12
Polarons, quasiparticles arising from electron-phonon coupling, are crucial in understanding material properties such as high-temperature superconductivity and colossal magnetoresi…
Performance Enhancement of Black Phosphorus Field-Effect Transistors by Chemical Doping
Yuchen Du, Lingming Yang, Hong Zhou +1
In this letter, a new approach to chemically dope black phosphorus (BP) is presented, which significantly enhances the device performance of BP field-effect transistors for an init…
Auxetic Black Phosphorus: A 2D Material with Negative Poisson's Ratio
Yuchen Du, Jesse Maassen, Wangran Wu +3
The Poisson's ratio of a material characterizes its response to uniaxial strain. Materials normally possess a positive Poisson's ratio - they contract laterally when stretched, and…
Semiconducting Black Phosphorus: Synthesis, Transport Properties and Electronic Applications
Han Liu, Yuchen Du, Yexin Deng +1
Phosphorus is one of the most abundant elements preserved in earth, constructing with a fraction of ~0.1% of the earth crust. In general, phosphorus has several allotropes. The two…
Contact Research Strategy for Emerging Molybdenum Disulfide and Other Two-Dimensional Field-effect Transistors
Yuchen Du, Lingming Yang, Han Liu +1
Layered two-dimensional (2D) semiconducting transition metal dichalcogenides (TMD) have been widely isolated, synthesized, and characterized recently. Numerous 2D materials are ide…
High-Performance MoS2 Field-Effect Transistors Enabled by Chloride Doping: Record Low Contact Resistance (0.5 kohm*um) and Record High Drain Current (460 uA/um)
Lingming Yang, Kausik Majumdar, Yuchen Du +8
In this paper, we report a novel chemical doping technique to reduce the contact resistance (Rc) of transition metal dichalcogenides (TMDs) - eliminating two major roadblocks (name…