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The accurate determination of electronic temperatures in metallic nanostructures is essential for many technological applications, like plasmon-enhanced catalysis or lithographic nanofabrication procedures. In this Letter we demonstrate…

Two-dimensional materials such as graphene and transition metal dichalcogenides (TMDs) are ideal candidates to create ultra-thin electronics suitable for flexible substrates. Although optoelectronic devices based on TMDs have demonstrated…

Mesoscale and Nanoscale Physics · Physics 2018-03-15 Peize Han , Luke St. Marie , Qing X. Wang , Nicholas Quirk , Abdel El Fatimy , Masahiro Ishigami , Paola Barbara

Molybdenum ditelluride, MoTe2, is a versatile material where the topological phase can be readily tuned by manipulating the associated structural phase transition. The fine details of the band structure of MoTe2, key to understanding its…

Materials Science · Physics 2020-02-19 D. Santos-Cottin , E. Martino , F. Le Mardele , C. Witteveen , F. O. von Rohr , C. C. Homes , Z. Rukelj , Ana Akrap

Two-dimensional (2D) materials, such as molybdenum disulfide (MoS2), have been shown to exhibit excellent electrical and optical properties. The semiconducting nature of MoS2 allows it to overcome the shortcomings of zero-bandgap graphene,…

Mesoscale and Nanoscale Physics · Physics 2012-09-17 Han Wang , Lili Yu , Yi-Hsien Lee , Yumeng Shi , Allen Hsu , Matthew Chin , Lain-Jong Li , Madan Dubey , Jing Kong , Tomas Palacios

We present an analytical investigation of the optical absorption spectrum of monolayer molybdenumdisulfide. Based on the density matrix formalism, our approach gives insights into the microscopic origin of excitonic transitions, their…

Materials Science · Physics 2014-03-24 Gunnar Berghäuser , Ermin Malic

The discovery of graphene has put the spotlight on other layered materials including transition metal dichalcogenites (TMD) as building blocks for novel heterostructures assembled from stacked atomic layers. Molybdenum disulfide, MoS2, a…

Mesoscale and Nanoscale Physics · Physics 2014-09-19 Chih-Pin Lu , Guohong Li , Jinhai Mao , Li-Min Wang , Eva Y. Andrei

State-of-the-art fabrication and characterization techniques have been employed to measure the thermal conductivity of suspended, single-crystalline MoS2 and MoS2/hBN heterostructures. Two-laser Raman scattering thermometry was used…

Molybdenum disulfide (MoS2) is a highly attractive 2D material due to its interesting electronic properties. Recent experimental advances confirm the possibility of further tuning the electronic properties of MoS2 through the fabrication of…

Materials Science · Physics 2017-04-17 B Mortazavi , A Ostadhossein , T Rabczuk , ACT van Duin

We simulate the electronic and transport properties of metal/two-dimensional material/metal vertical heterostructures, with a focus on graphene, hexagonal boron nitride and two phases of molybdenum diselenide. Using density functional…

Mesoscale and Nanoscale Physics · Physics 2025-02-06 Gaëlle Bigeard , Zineb Kerrami , François Triozon , Alessandro Cresti

The thermal transport in partially trenched silicon nitride membranes has been studied in the temperature range from 0.3 to 0.6 K, with the transition edge sensor (TES), the sole source of membrane heating. The test configuration consisted…

Instrumentation and Detectors · Physics 2010-11-02 V. Yefremenko , G. Wang , V. Novosad , A. Datesman , J. Pearson , R. Divan , C. Chang , T. Downes , J. McMahon , L. Bleem , A. Crites , S. S. Meyer , J. E. Carlstrom

We measure transport through a Ga[Al]As heterostructure at temperatures between 0.1 K and 30 K. Increasing the temperature enhances the electron-electron scattering rate and viscous effects in the two-dimensional electron gas arise. To…

Electrical and optical characterization of two-dimensional/three-dimensional (2D/3D) p-molybdenum disulfide/n-gallium nitride (p-MoS2/n-GaN) heterojunction diodes are reported. Devices were fabricated on high-quality, large-area p-MoS2…

The presence of a direct band gap and an ultrathin form factor has caused a considerable interest in two-dimensional (2D) semiconductors from the transition metal dichalcogenides (TMD) family with molybdenum disulphide (MoS2) being the most…

Mesoscale and Nanoscale Physics · Physics 2014-09-24 Daria Krasnozhon , Dominik Lembke , Clemens Nyffeler , Yusuf Leblebici , Andras Kis

Molybdenum disulfide (MoS2) is a layered semiconductor which has become very important recently as an emerging electronic device material. Being an intrinsic semiconductor the two-dimensional MoS2 has major advantages as the channel…

Mesoscale and Nanoscale Physics · Physics 2013-04-02 Ferdows Zahid , Lei Liu , Yu Zhu , Jian Wang , Hong Guo

Recently emerging large-area single-layer MoS2 grown by chemical vapor deposition has triggered great interest due to its exciting potential for applications in advanced electronic and optoelectronic devices. Unlike gapless graphene, MoS2…

The coupling of optical and electronic degrees of freedom together with quantum confinement in low-dimensional electron systems is particularly interesting for achieving exotic functionalities in strongly correlated oxide electronics.…

The interface between two-dimensional semiconductors and metal contacts is an important topic of research of nanoelectronic devices based on two-dimensional semiconducting materials such as molybdenum disulfide (MoS2). We report transport…

Mesoscale and Nanoscale Physics · Physics 2017-12-18 Y. Shimazu , K. Arai , T. Iwabuchi

We report low temperature scanning tunneling microscopy characterization of MoSe2 crystals, and the fabrication and electrical characterization of MoSe2 field-effect transistors on both SiO2 and parylene-C substrates. We find that the…

Due to high surface to volume ratio and tunable band gap, 2 Dimensional (2D) layered materials such as MoS2, is good candidate for gas sensing applications. This research mainly focuses on variation of Density of States (DOS) of MoS2…

Mesoscale and Nanoscale Physics · Physics 2018-02-16 Seyed Ali Hosseini , Azam Irajizad , Masud Berahman , Farzaneh Aghakhani Mahyari , Seyed Hossein Hosseini Shokouh

We present a detailed study of thermal and electrical transport behavior of single crystal Titanium disulphide flakes, which belongs to the two dimensional, transition metal dichalcogenide class of materials. In-plane Seebeck effect…

Mesoscale and Nanoscale Physics · Physics 2018-01-16 Dhavala Suri , Vantari Siva , Shalikram Joshi , Kartik Senapati , P. K. Sahoo , Shikha Varma , R. S. Patel