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Atomic vacancies, such as chalcogen vacancies in 2D TMDs, are important in changing the host material's electronic structure and transport properties. We present a straightforward one-step method for growing monolayer MoS2 utilizing…

介观与纳米尺度物理 · 物理学 2024-05-28 Sudipta Majumder , Vaibhav Walve , Rahul Chand , Gokul M. A. , Sooyeon Hwang , G. V. Pavan Kumar , Aparna Deshpande , Atikur Rahman

Heat dissipation issues are the emerging challenges in the field of flexible electronics. Thermal management of flexible electronics creates a demand for flexible materials with highly anisotropic thermal conductivity, which work as heat…

介观与纳米尺度物理 · 物理学 2016-09-30 Zhe Cheng , Meng Han , Pengyu Yuan , Shen Xu , Baratunde A. Cola , Xinwei Wang

The development of two-dimensional (2D) room temperature magnets is of great significance to the practical application of spintronic devices. However, the number of synthesized intrinsic 2D magnets is limited and the performances of them…

材料科学 · 物理学 2023-10-24 Jing Wu , Ruyi Guo , Daoxiong Wu , Xiuling Li , Xiaojun Wu

With the continuous advancement of nanotechnology, nanodevices have become crucial components in computing, sensing and energy conversion applications. However, the structures of nanodevices typically possess sub-wavelength dimensions and…

Here we report mid infrared (mid-IR) photothermal response of multi layer MoS2 thin film grown on crystalline (p-type silicon and c-axis oriented single crystal sapphire) and amorphous substrates (Si/SiO2 and Si/SiN) by pulsed laser…

We compute atomistically the heat conductance for ultra-thin pristine silicon nanowires (SiNWs) with diameters ranging from 1 to 5 nm. The room temperature thermal conductance is found to be highly anisotropic: wires oriented along the…

材料科学 · 物理学 2009-01-09 Troels Markussen , Antti-Pekka Jauho , Mads Brandbyge

We report the observation of electric-field-induced superconductivity on the surface of bulk polycrystalline MoS2 using electric double-layer doping. A gate voltage applied in an ionic liquid environment systematically increased carrier…

超导电性 · 物理学 2025-09-04 Yoshihiro Shimazu , Tomonori Miyatake , Kento Ueno , Masatomo Uehara

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,…

介观与纳米尺度物理 · 物理学 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

The thermal conductivity study on the pyrochlore structured ceramics is important for utilization of these materials as an inert matrix fuel, electrolytes for oxide fuel cell and thermal barrier coating. The impact of porosity, structural…

材料科学 · 物理学 2022-11-01 Yogendar Singh , Vivek Kumar , Saurabh Kumar Sharma , Pawan Kumar Kulriya

The deposition of a thin oxide layer at metal/semiconductor interfaces has been previously reported as a means of reducing contact resistance in 2D electronics. Using X-ray photoelectron spectroscopy with in-situ Ti deposition, we fabricate…

材料科学 · 物理学 2019-10-10 Keren M. Freedy , David H. Olson , Patrick E. Hopkins , Stephen J. McDonnell

Recent theoretical works on two-dimensional molybdenum disulfide, MoS$_2$, with sulfur vacancies predict that the suppression of thermal transport in MoS$_2$ by point defects is more prominent in monolayers and becomes negligible as layer…

材料科学 · 物理学 2023-12-08 Ranjuna M K , Jayakumar Balakrishnan

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…

材料科学 · 物理学 2017-04-17 B Mortazavi , A Ostadhossein , T Rabczuk , ACT van Duin

To stabilize the working temperature of an equipment, a solid-state thermal resistor is usually a requisite, which could adjust its heat conductance continuously according to the temperature. In this work, the thermal conductivity and the…

介观与纳米尺度物理 · 物理学 2025-01-14 Congliang Huang , Changkang Du , Qiangqiang Huang , Xiaodong Wang

Ultra-thin MoS2 has recently emerged as a promising two-dimensional semiconductor for electronic and optoelectronic applications. Here, we report high mobility (>60 cm2/Vs at room temperature) field-effect transistors that employ…

2D MoS2 attracts increasing attention for its application in flexible electronics and photonic devices. For 2D material optoelectronic devices, light absorption of the molecularly thin 2D absorber would be one of the key limiting factors in…

介观与纳米尺度物理 · 物理学 2023-01-04 Xiaoxue Gao , Sidan Fu , Tao Fang , Xiaobai Yu , Haozhe Wang , Qingqing Ji , Jing Kong , Xiaoxin Wang , Jifeng Liu

Layering two-dimensional van der Waals materials provides unprecedented control over atomic placement, which could enable tailoring of vibrational spectra and heat flow at the sub-nanometer scale. Here, using spatially-resolved ultrafast…

Chemical vapor deposition has been most recently employed to fabricate centimeter-scale high-quality single-layer MoSi2N4 (Science; 2020;369; 670). Motivated by this exciting experimental advance, herein we conduct extensive…

As silicon transistors scale toward future technology nodes, three-dimensional architectures -- including gate-all-around (GAA) nanoribbon and complementary field-effect transistors (CFETs) -- require channel widths in the tens of…

A comprehensive rational thermal material design paradigm requires the ability to reduce and enhance the thermal conductivities of nanomaterials. In contrast to the existing ability to reduce the thermal conductivity, methods that allow to…

介观与纳米尺度物理 · 物理学 2017-10-09 Abhinav Malhotra , Kartik Kothari , Martin Maldovan

The effect of electron irradiation on 2D materials is an important topic, both for the correct interpretation of electron microscopy experiments and for possible applications in electron lithography. After the importance of including…

材料科学 · 物理学 2025-01-16 Carsten Speckmann , Kimmo Mustonen , Diana Propst , Clemens Mangler , Jani Kotakoski