English
Related papers

Related papers: Decoding the DC and optical conductivities of diso…

200 papers

Despite the concerted effort of several research groups, a detailed experimental account of defect dynamics in high-quality single- and few-layer transition metal dichalcogenides remain elusive. In this paper we report an experimental study…

Mesoscale and Nanoscale Physics · Physics 2019-07-04 Suman Sarkar , K. Lakshmi Ganapathi , Sangeneni Mohan , Aveek Bid

Conductive and paintable inks of 2D layered MoS2 with aspect ratio-dependent conductivity are demonstrated. Using ultrasonically assisted solvent-exfoliation of MoS2, high concentration 2D and few-layer suspensions become inks that provide…

Applied Physics · Physics 2020-10-19 Elaine Carroll , Darragh Buckley , David McNulty , Colm O'Dwyer

Coherent diffractive imaging is a technique that recovers the sample image by numerically inverting its diffraction pattern. We propose a generalization of this method for the inversion of multi-wavelength data. Using this approach, we show…

Optics · Physics 2020-05-08 Erik Malm , Edwin Fohtung , Anders Mikkelsen

Energy band realignment at the interfaces between materials in heterostructures can give rise to unique electronic characteristics and non-trivial low-dimensional charge states. In a homojunction of monolayer and multilayer MoS$_2$, the…

Materials Science · Physics 2017-07-21 Ying Jia , Teodor K. Stanev , Erik J. Lenferink , Nathaniel P. Stern

Random networks of carbon nanotubes and metallic nanowires have shown to be very useful in the production of transparent, conducting films. The electronic transport on the film depends considerably on the network properties, and on the…

Mesoscale and Nanoscale Physics · Physics 2010-12-13 Luiz F. C. Pereira , C. G. Rocha , A. Latge , M. S. Ferreira

In this work, we investigated the electronic structure and the quantum capacitance of the functionalized MoS$_2$ monolayer. The functionalizations have been done by using different ad-atom adsorption on Mo$S_2$ monolayer. Density functional…

Materials Science · Physics 2020-11-25 Sruthi T , Nayana Devaraj , Kartick Tarafder

Solution-processed two-dimensional (2D) materials hold promise for their scalable applications. However, the random, fragmented nature of the solution-processed nanoflakes and the poor percolative conduction through their discrete networks…

The conductance of a disordered finite-size electron system is calculated by reducing the initial dynamic problem of arbitrary dimensionality to strictly one-dimensional problems for one-particle mode propagators. The metallic ground state…

Disordered Systems and Neural Networks · Physics 2007-05-23 Yu. V. Tarasov

Two-dimensional (2D) superconductivity is a fascinating phenomenon packed with rich physics and wide technological application. The vortices and their dynamics arising from classical and quantum fluctuations give rise to…

Mesoscale and Nanoscale Physics · Physics 2018-12-17 Chithra H. Sharma , Ananthu P. Surendran , Sangeeth S. Varma , Madhu Thalakulam

The research field of two dimensional (2D) materials strongly relies on optical microscopy characterization tools to identify atomically thin materials and to determine their number of layers. Moreover, optical microscopy-based techniques…

Magneto-acousto-electrical tomography (MAET), a combination of ultrasound imaging and electrical impedance tomography (EIT), offers both high resolution (in comparison to EIT) and high contrast (in comparison to ultrasound imaging). It is…

Quantum conductance calculations on the mechanically deformed monolayers of MoS$_2$ and WS$_2$ were performed using the non-equlibrium Green's functions method combined with the Landauer-B\"{u}ttiker approach for ballistic transport…

Materials Science · Physics 2014-03-04 Mahdi Ghorbani-Asl , Stefano Borini , Agnieszka Kuc , Thomas Heine

We study conductivity of strongly disordered amorphous antimony films under high bias voltages. We observe non-linear current-voltage characteristic, where the conductivity value at zero bias is one of two distinct values, being determined…

Mesoscale and Nanoscale Physics · Physics 2020-05-11 N. N. Orlova , S. I. Bozhko , E. V. Deviatov

Strain can efficiently modulate the bandgap and carrier mobilities in two-dimensional (2D) materials. Conventional mechanical strain-application methodologies that rely on flexible, patterned or nano-indented substrates are severely limited…

The optical response of a system of two-dimensional Bose condensate droplets with an internal charge structure interacting with impurities is considered within the mode-coupling theory. It is found, that the glass transition in the system…

Strongly Correlated Electrons · Physics 2009-11-11 E. V. Zenkov

Two-dimensional (2D) compounds provide unique building blocks for novel layered devices and hybrid photonic structures. However, large surface-to-volume ratio in thin films enhances the significance of surface interactions and charging…

The application of two-dimensional (2D) semiconductors, such as monolayer MoS2, is limited by the high contact resistance commonly attributed to interfacial barriers at metal contacts. Furthermore, the dependence of electrical conductivity…

By extracting the permittivity of monolayer MoS2 from experiments, the optical absorption of monolayer MoS2 prepared on top of one-dimensional photonic crystal (1DPC) or metal films is investigated theoretically. The 1DPC and metal films…

Optics · Physics 2016-02-01 Jiang-Tao Liu , Tong-Biao Wang , Xiao-Jing Li , Nian-Hua Liu

Two dimensional (2D) materials such as graphene and transition metal dichalcogenides (TMDC) have received extensive research interests and investigations in the past decade. In this research, we report the first experimental measurement of…

Materials Science · Physics 2024-12-10 Jun Liu , Mengqi Fang , Eui-Hyeok Yang , Xian Zhang

A method for assessing the quality of electronic material properties of thin-film metal oxide semiconductor field-effect transistors (MOSFETs) is presented. By investigating samples with MOCVD-grown MoS${_2}$ channels exposed to atmospheric…

Applied Physics · Physics 2025-04-03 Eros Reato , Ardeshir Esteki , Benny Ku , Zhenxing Wang , Michael Heuken , Max C. Lemme , Olof Engström