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相关论文: Interfacial thermal conductance in graphene/black …

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Low thermal conductance of metal contacts is one of the main challenges in thermal management of nanoscale devices of graphene and other 2D materials. Previous attempts to search for metal contacts with high thermal conductance yielded…

应用物理 · 物理学 2018-12-13 Weidong Zheng , Bin Huang , Hongkun Li , Yee Kan Koh

We investigate the heat current flowing across the interface between graphene and hexagonal boron nitride (so-called white graphene) using both molecular dynamics simulation and nonequilibrium Green's function approaches. These two distinct…

材料科学 · 物理学 2015-03-19 Jin-Wu Jiang , Jian-Sheng Wang

Graphene was recently proposed as a material for heat removal owing to its extremely high thermal conductivity. We simulated heat propagation in silicon-on-insulator circuits with and without graphene lateral heat spreaders. Numerical…

材料科学 · 物理学 2010-02-06 Samia Subrina , Dmitri Kotchetkov , Alexander A. Balandin

The mechanical integrity of composite materials depends primarily on the interface strength and the defect density of the reinforcement which is the provider of enhanced strength and stiffness. In the case of graphene/ polymer…

We have investigated thermal conductivity of graphene laminate films deposited on polyethylene terephthalate substrates. Two types of graphene laminate were studied - as deposited and compressed - in order to determine the physical…

材料科学 · 物理学 2014-11-21 H. Malekpour , K. -H. Chang , J. -C. Chen , C. -Y. Lu , D. L. Nika , K. S. Novoselov , A. A. Balandin

Graphene is an attractive material for microelectronics applications, given such favourable electrical characteristics as high mobility, high operating frequency, and good stability. If graphene is to be implemented in electronic devices on…

材料科学 · 物理学 2019-06-14 B. C. Worley , S. Kim , T. J. Ha , S. Park , R. Haws , P. Rossky , D. Akinwande , A. Dodabalapur

Thermal rectifiers are devices that have different thermal conductivities in opposing directions of heat flow. The realization of practical thermal rectifiers relies significantly on a sound understanding of the underlying mechanisms of…

材料科学 · 物理学 2023-12-22 Simanta Lahkar , Raghavan Ranganathan

Previous researches only reported very small interfacial thermal resistances at room temperature due to limitations in sample combinations and methods. Taking cognizance of the importance of mismatched phonon structures, we report values up…

材料科学 · 物理学 2019-04-30 Yan Yin , Busheng Wang , Jin Chen , Jiyong Yao , Wenlong Wang , Li Wang , Huaizhou Zhao , Wuming Liu , Xuedong Bai

In this work, we demonstrate interfacial charge transfer-driven transport enhancement in few-layer graphene monolayer MoS2 vertical heterostructure field-effect transistor. Raman scattering and Raman intensity mapping results confirm the…

Contact Resistance (RC) is a major limiting factor in the performance of graphene devices. RC is sensitive to the quality of the interface and the composition of the contact, which are affected by the graphene transfer process and contact…

Isolated, atomically thin conducting membranes of graphite, called graphene, have recently been the subject of intense research with the hope that practical applications in fields ranging from electronics to energy science will emerge.…

介观与纳米尺度物理 · 物理学 2010-09-17 S. Garaj , W. Hubbard , A. Reina , J. Kong , D. Branton , J. A. Golovchenko

Negative compressibility generated by many-body effects in 2D electronic systems can enhance gate capacitance. We observe capacitance enhancement in a newly emerged 2D layered material, atomically thin black phosphorus (BP). The…

介观与纳米尺度物理 · 物理学 2016-04-05 Yingying Wu , Xiaolong Chen , Zefei Wu , Shuigang Xu , Tianyi Han , Jiangxiazi Lin , Yuan Cai , Yuheng He , Chun Cheng , Ning Wang

We study the interfacial thermal conductance of grain boundaries (GBs) between monolayer graphene and hexagonal boron nitride (h-BN) sheets using a combined atomistic approach. First, realistic samples containing graphene/h-BN GBs with…

材料科学 · 物理学 2022-01-03 Haikuan Dong , Petri Hirvonen , Zheyong Fan , Ping Qian , Yanjing Su , Tapio Ala-Nissila

The radiative heat transfer between two dielectrics can be strongly enhanced in the near field in the presence of surface phonon-polariton resonances. Nevertheless, the spectral mismatch between the surface modes supported by two dissimilar…

介观与纳米尺度物理 · 物理学 2017-07-07 Riccardo Messina , Philippe Ben-Abdallah , Brahim Guizal , Mauro Antezza

This work is the first step towards understanding thermionic transport properties of graphene/phosphorene/graphene van der Waals heterostructures in contact with gold electrodes by using density functional theory based first principles…

材料科学 · 物理学 2017-06-21 Xiaoming Wang , Mona Zebarjadi , Keivan Esfarjani

Phosphorene, the single- or few-layer form of black phosphorus, was recently rediscovered as a twodimensional layered material holding great promise for applications in electronics and optoelectronics. Research into its fundamental…

材料科学 · 物理学 2015-06-19 Liangzhi Kou , Changfeng Chen , Sean C. Smith

Step junctions are often present in layered materials, i.e. where single-layer regions meet multi-layer regions, yet their effect on thermal transport is not understood to date. Here, we measure heat flow across graphene junctions (GJs)…

Thermal conductance of metal contacts on transferred graphene (trG) could be significantly reduced from the intrinsic value of similar contacts on as-grown graphene (grG), due to additional resistance by increased roughness, residues,…

材料科学 · 物理学 2016-04-07 Bin Huang , Yee Kan Koh

Phosphorene, the single layer counterpart of black phosphorus, is a novel two-dimensional semiconductor with high carrier mobility and a large fundamental direct band gap, which has attracted tremendous interest recently. Its potential…

材料科学 · 物理学 2015-02-06 Guangzhao Qin , Qing-Bo Yan , Zhenzhen Qin , Sheng-Ying Yue , Ming Hu , Gang Su

Atomically thin monolayers of graphene show excellent electronic properties which have led to a great deal of research on their use in nanoscale devices. However, heat management of such nanoscale devices is essential in order to improve…