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相关论文: Electrical and optical properties of MoS$_{2}$,MoO…

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Graphene/MoS$_2$ van der Waals (vdW) heterostructures have promising technological applications due to their unique properties and functionalities. Many experimental and theoretical research groups across the globe have made outstanding…

材料科学 · 物理学 2018-10-17 Sobhit Singh , Camilo Espejo , Aldo H. Romero

We performed detailed studies of the current-voltage characteristics in graphene/MoS2/metal vertical field-effect transistors. Owing to its low density of states, the Fermi level in graphene is very sensitive to its carrier density and thus…

介观与纳米尺度物理 · 物理学 2015-06-03 Rai Moriya , Takehiro Yamaguchi , Yoshihisa Inoue , Yohta Sata , Sei Morikawa , Satoru Masubuchi , Tomoki Machida

Due to its high carrier mobility, broadband absorption, and fast response time, graphene is attractive for optoelectronics and photodetection applications. However, the extraction of photoelectrons in conventional metal-graphene junction…

In Bernal stacked bilayer graphene interlayer coupling significantly affects the electronic bandstructure compared to monolayer graphene. Here we present magnetotransport experiments on high-quality $n$-doped bilayer MoS$_{2}$. By measuring…

介观与纳米尺度物理 · 物理学 2019-09-18 Riccardo Pisoni , Tim Davatz , Kenji Watanabe , Takashi Taniguchi , Thomas Ihn , Klaus Ensslin

We propose the design of low strained and energetically favourable mono and bilayer graphene overlayer on anatase TiO$_2$ (001) surface and examined the electronic structure of the interface with the aid of first principle calculations. In…

材料科学 · 物理学 2020-12-22 Shashi B. Mishra , Somnath C. Roy , B. R. K. Nanda

In this paper, density functional theory calculations are used to explore the electronic and atomic reconstruction at interfaces between III-III/I-V oxides. In particular, at these interfaces, two dimensional electron gases (2DEGs) with…

材料科学 · 物理学 2012-06-06 Valentino R. Cooper

By fabricating and characterizing multi-layered MoS$_2$-based field-effect transistors (FETs) in a four terminal configuration, we demonstrate that the two terminal-configurations tend to underestimate the carrier mobility $\mu$ due to the…

介观与纳米尺度物理 · 物理学 2015-06-12 N. R. Pradhan , D. Rhodes , Q. Zhang , S. Talapatra , M. Terrones , P. M. Ajayan , L. Balicas

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 theory, we investigatethe structural and electronic…

材料科学 · 物理学 2015-06-25 Yongqing Cai , Gang Zhang , Yong-Wei Zhang

The dynamic covalent properties of graphene oxide (GO) are of fundamental interest to a broad range of scientific areas and technological applications. It remains a challenge to access the feasible dynamic reactions for reversibly…

材料科学 · 物理学 2022-08-24 Zihan Yan , Wenjie Yang , Hao Yang , Chengao Ji , Shuming Zeng , Xiuyun Zhang , Liang Zhao , Yusong Tu

We systematically study the effect of high pressure on the structure, electronic structure and transport properties of 2H-MoS$_2$, based on first-principles density functional calculations and the Boltzmann transport theory. Our calculation…

材料科学 · 物理学 2013-09-18 Huaihong Guo , Teng Yang , Peng Tao , Yong Wang , Zhidong Zhang

We propose an effective lattice Hamiltonian for monolayer MoS$_2$ in order to describe the low-energy band structure and investigate the effect of perpendicular electric and magnetic fields on its electronic structure. We derive a…

介观与纳米尺度物理 · 物理学 2013-09-04 Habib Rostami , Ali G. Moghaddam , Reza Asgari

The thickness-dependent band structure of MoS2 implies that discontinuities in energy bands exist at the interface of monolayer (1L) and multilayer (ML) thin films. The characteristics of such heterojunctions are analyzed here using current…

We have studied the transport properties of LaTiO3/SrTiO3 (LTO/STO) heterostructures. In spite of 2D growth observed in reflection high energy electron diffraction, Transmission Electron Microscopy images revealed that the samples tend to…

介观与纳米尺度物理 · 物理学 2020-12-30 N. Lebedev , M. Stehno , A. Rana , N. Gauquelin , J. Verbeeck , A. Brinkman , J. Aarts

Integration of semiconducting transition metal dichalcogenides (TMDs) into functional optoelectronic circuitries requires an understanding of the charge transfer across the interface between the TMD and the contacting material. Here, we use…

We investigate electromechanical properties of two-dimensional MoS$_2$ monolayers in the 1H, 1T, and 1T$^\prime$ structures as a function of charge doping by using density functional theory. We find isotropic elastic moduli in the 1H and 1T…

材料科学 · 物理学 2018-02-14 Nguyen T. Hung , Ahmad R. T. Nugraha , Riichiro Saito

The type and distribution of oxygen functional groups in graphene oxide (GO) and reduced graphene oxide (RGO) remain still a subject of great debate. Local analytic techniques are required to access the chemistry of these materials at a…

材料科学 · 物理学 2016-12-13 Anna Tararan , Alberto Zobelli , Ana M. Benito , Wolfgang K. Maser , Odile Stéphan

The ability to perform efficient electrical spin injection from ferromagnetic metals into two-dimensional semiconductor crystals based on transition metal dichalcogenide monolayers is a prerequisite for spintronic and valleytronic devices…

材料科学 · 物理学 2018-03-29 Thomas Garandel , Rémi Arras , Xavier Marie , Pierre Renucci , Lionel Calmels

We have measured both the current-voltage ($I_\mathrm{SD}$-$V_\mathrm{GS}$) and capacitance-voltage ($C$-$V_\mathrm{GS}$) characteristics of a $\mathrm{MoS_2-LiNbO_3}$ field effect transistor. From the measured capacitance we calculate the…

介观与纳米尺度物理 · 物理学 2017-06-23 W. Michailow , F. J. R. Schülein , B. Möller , E. Preciado , A. E. Nguyen , G. v. Son , J. Mann , A. L. Hörner , A. Wixforth , L. Bartels , H. J. Krenner

Electronic and dielectric properties of vapor-phase grown MoS_{2} have been investigated in metal/MoS_{2}/silicon capacitor structures by capacitance-voltage and conductancevoltage techniques. Analytical methods confirm the MoS_{2} layered…

材料科学 · 物理学 2019-07-19 M. Belete , S. Kataria , U. Koch , M. Kruth , C. Engelhard , J. Mayer , O. Engström , M. C. Lemme

We demonstrate a graphene-MoS2 architecture integrating multiple field-effect transistors and we independently probe and correlate the conducting properties of van der Waals coupled graphene-MoS2 contacts with the ones of the MoS2 channels.…