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Related papers: Site-projected Thermal Conductivity: Application t…

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We develop the theory of heat conductivity in supported graphene, accounting for coherent phonon scattering on disorder induced by an amorphous substrate. We derive spectra for in-plane and out-of-plane phonons in the framework of Green's…

Mesoscale and Nanoscale Physics · Physics 2017-03-03 Sergei Koniakhin , Oleg Utesov , Ivan Terterov , Anton Nalitov

The authors report on synthesis and thermal properties of the electrically-conductive thermal interface materials with the hybrid graphene-metal particle fillers. The thermal conductivity of resulting composites was increased by ~500% in a…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Vivek Goyal , Alexander A. Balandin

Thermal conductivity is a critical material property in numerous applications, such as those related to thermoelectric devices and heat dissipation. Effectively modulating thermal conductivity has become a great concern in the field of heat…

Materials Science · Physics 2023-04-06 Xiao Wan , Dongkai Pan , Jing-Tao Lü , Sebastian Volz , Lifa Zhang , Qing Hao , Yangjun Qin , Zhicheng Zong , Nuo Yang

Thermal energy storage using sensible heating of a solid storage medium is a potential low-cost technology for long-duration energy storage. To effectively get heat in and out of the solid material, channels of heat transfer fluid can be…

Applied Physics · Physics 2024-02-13 Shomik Verma , Colin Kelsall , Kyle Buznitsky , Alina LaPotin , Ashwin Sandeep , Asegun Henry

We review experimental and theoretical results on thermal transport in semiconductor nanostructures (multilayer thin films, core/shell and segmented nanowires), single- and few-layer graphene, hexagonal boron nitride, molybdenum disulfide…

Mesoscale and Nanoscale Physics · Physics 2018-06-13 Alexandr I. Cocemasov , Calina I. Isacova , Denis L. Nika

A theory of transverse electron transport coupled with heat transfer in semiconductor thin films is developed conceptually modeling structures of modern electronics. The transverse currents generate Joule heat with positive feedback through…

Disordered Systems and Neural Networks · Physics 2015-06-05 V. G. Karpov

The vast amount of computational studies on electrical conduction in solid-state electrolytes is not mirrored by comparable efforts addressing thermal conduction, which has been scarcely investigated despite its relevance to thermal…

Materials Science · Physics 2024-06-18 Davide Tisi , Federico Grasselli , Lorenzo Gigli , Michele Ceriotti

We review the Raman shift method as a non-destructive optical tool to investigate the thermal conductivity and demonstrate the possibility to map this quantity with a micrometer resolution by studying thin film and bulk materials for…

Materials Science · Physics 2015-06-22 B. Stoib , S. Filser , J. Stötzel , A. Greppmair , N. Petermann , H. Wiggers , G. Schierning , M. Stutzmann , M. S. Brandt

Recently discovered double gamma/beta ({\gamma}/\b{eta}) polymorph Ga2O3 structures constitute a class of novel materials providing an option to modulate functional properties across interfaces without changing chemical compositions of…

Lattice thermal conductivity (LTC) is a critical parameter for thermal transport properties, playing a pivotal role in advancing thermoelectric materials and thermal management technologies. Traditional computational methods, such as…

Materials Science · Physics 2025-09-22 Yuxuan Zeng , Wei Cao , Yijing Zuo , Tan Peng , Yue Hou , Ling Miao , Ziyu Wang , Jing Shi

In this work, we study the thermal energy transport properties of twin graphene, which has been introduced recently as a new two-dimensional carbon nano structure. The thermal conductivity is investigated using non-equilibrium molecular…

Computational Physics · Physics 2020-12-30 Fatemeh Rezaee , Farrokh Yousefi , Farhad Khoeini

We employ classical molecular dynamics to study the nonlinear thermal transport in graphene nanoribbons (GNRs). For GNRs under large temperature biases beyond linear response regime, we have observed the onset of negative differential…

Mesoscale and Nanoscale Physics · Physics 2016-11-25 Jiuning Hu , Yan Wang , Ajit Vallabhaneni , Xiulin Ruan , Yong P. Chen

This work is aimed at the study and analysis of the heat transport on a metal bar of length $L$ with a solid-solid interface. The process is assumed to be developed along one direction, across two homogeneous and isotropic materials.…

Analysis of PDEs · Mathematics 2021-10-28 Diana Rubio , Domingo A. Tarzia , Guillermo F. Umbricht

We have developed a transient thermoreflectance technique using picosecond pulsed and cw laser to study thermal conductivity and interface conductance in both thin-films and bulk materials. A real time-resolved system observes a thermal…

Materials Science · Physics 2021-08-27 Jihoon Jeong , Xianghai Meng , Ann Kathryn Rockwell , Seth R Bank , Wen-Pin Hsieh , Jung-fu Lin , Yaguo Wang

We use non-equilibrium molecular dynamics simulations to study the adverse role of defects including isotopic impurities on the thermal conductivity of carbon nanotubes, graphene and graphene nanoribbons. We find that even in structurally…

Materials Science · Physics 2015-06-11 Zacharias G. Fthenakis , David Tománek

We developed a combined atomistic-continuum hierarchical multiscale approach to explore the effective thermal conductivity of graphene laminates. To this aim, we first performed molecular dynamics simulations in order to study the heat…

Materials Science · Physics 2017-04-07 B Mortazavi , T Rabczuk

Semiconducting alloys, in particular SiGe, have been employed for several decades as high-temperature thermoelectric materials. Devising strategies to reduce their thermal conductivity may provide a substantial improvement in their…

Materials Science · Physics 2024-08-12 Alfredo Fiorentino , Paolo Pegolo , Stefano Baroni , Davide Donadio

Efficient and precise calculations of thermal transport properties and figure of merit, alongside a deep comprehension of thermal transport mechanisms, are essential for the practical utilization of advanced thermoelectric materials. In…

The discovery of unusual heat conduction properties of graphene has led to a surge of theoretical and experimental studies of phonon transport in two-dimensional material systems. The rapidly developing graphene thermal field spans from…

Materials Science · Physics 2016-02-01 Denis L. Nika , Alexander A. Balandin

Graphene aerogel (GA) is a promising material for thermal management applications across many fields due to its lightweight and thermally insulative properties. However, standard values for important thermal properties, such as thermal…