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The thermal properties of two-dimensional (2D) materials, like MoS$_2$, are known to be affected by interactions with their environment, but this has primarily been studied only with SiO$_2$ substrates. Here, we compare the thermal…

Materials Science · Physics 2022-05-20 Alexander J. Gabourie , Cagil Koroglu , Eric Pop

It is believed that nanostructuring is an effective way to achieve excellent thermoelectric performance. In the work, by combining the first-principles calculations and semiclassical Boltzmann transport theory, we investigate the…

Materials Science · Physics 2017-06-27 San-Dong Guo , Hui-Chao Li

Recent advances in our understanding of thermal transport in nanocrystalline systems are responsible for the integration of new technologies into advanced energy systems, including thermoelectric refrigeration systems and renewable energy…

Mesoscale and Nanoscale Physics · Physics 2019-08-12 Brian F. Donovan , Ronald J. Warzoha , R. Bharath Venkatesh , Nicholas T. Vu , Jay Wallen , Daeyeon Lee

The ultra-wide bandgap, high breakdown electric field, and large-area affordable substrates make \b{eta}-Ga2O3 promising for applications of next-generation power electronics while its thermal conductivity is at least one order of magnitude…

The thermal transport properties of porous silicon and nano-hybrid "porous silicon/water" systems are presented here. The thermal conductivity was evaluated with equilibrium molecular dynamics technique for porous systems made of spherical…

Mesoscale and Nanoscale Physics · Physics 2020-12-03 Mykola Isaiev , Xiaorui Wang , Konstantinos Termentzidis , David Lacroix

Understanding the thermal properties of two-dimensional (2D) materials and devices is essential for thermal management of 2D applications. Here we perform molecular dynamics simulations to evaluate both the specific heat of $MoS_{2}$ as…

Mesoscale and Nanoscale Physics · Physics 2019-08-02 Saurabh V. Suryavanshi , Alexander J. Gabourie , Amir Barati Farimani , Eric Pop

Thermal boundary resistance (TBR) in semiconductor-on-diamond structure bottlenecks efficient heat dissipation in electronic devices. In this study, to reduce the TBR between GaN and diamond, surface-activated bonding with a hybrid SiOx-Ar…

Materials Science · Physics 2024-04-25 Bin Xu , Fengwen Mu , Yingzhou Liu , Rulei Guo , Shiqian Hu , Junichiro Shiomi

We synthesized monodisperse cobalt-platinum nanoparticles Co(0.14-0.22)Pt(0.86-0.78) of 9 nm in diameter by colloidal chemistry methods and deposited them by the Langmuir-Blodgett technique as highly ordered monolayers onto substrates with…

Materials Science · Physics 2015-07-20 Yuxue Cai , Denis Wolfkuhler , Anton Myalitsin , Jan Perlich , Andreas Meyer , Christian Klinke

Deterministic enhancement of the superconducting (SC) critical temperature $T_c$ is a long-standing goal in material science. One strategy is engineering a material at the nanometer scale such that quantum confinement strengthens the…

Superconductivity · Physics 2016-03-30 Uwe S. Pracht , Nimrod Bachar , Lara Benfatto , Guy Deutscher , Eli Farber , Martin Dressel , Marc Scheffler

Among all materials, mono-crystalline diamond has one of the highest measured thermal conductivities, with values above 2000 W/m/K at room temperature. This stems from momentum-conserving `normal' phonon-phonon scattering processes…

We study magnetic, transport and thermal properties of Cobalt carbide nanocomposite with a mixture of Co2C and Co3C phases in 1:1 ratio, with an average particle diameter of 40$\pm 15$ nm. We show that the behavior of the nanocomposite is…

Strongly Correlated Electrons · Physics 2020-03-31 Nirmal Roy , Arpita Sen , Prasenjit Sen , S. S. Banerjee

Engineering light-matter interactions up to the strong-coupling regime at room temperature is one of the cornerstones of modern nanophotonics. Achieving this goal will enable new platforms for potential applications such as quantum…

Efficient heat dissipation to the substrate is crucial for optimal device performance in nanoelectronics. We develop a theory of electronic thermal boundary conductance (TBC) mediated by remote phonon scattering for the single-layer…

Mesoscale and Nanoscale Physics · Physics 2020-09-28 Zhun-Yong Ong , Gang Zhang , Linyou Cao , Yong-Wei Zhang

Optomechanical devices sensitively transduce and actuate motion of nanomechanical structures using light. Single--crystal diamond promises to improve the performance of optomechanical devices, while also providing opportunities to interface…

Because of its ultrawide bandgap, high breakdown electric field, and large area affordable substrates grown from the melt, beta Ga2O3 has attracted great attention recently for potential applications of power electronics. However, its…

Mesoscale and Nanoscale Physics · Physics 2019-01-11 Zhe Cheng , Luke Yates , Jingjing Shi , Marko J. Tadjer , Karl D. Hobart , Samuel Graham

The ability to probe nanoscale heat flow in a material is often limited by lack of spatial resolution. Here, we use a diamond-nanocrystal-hosted nitrogen-vacancy centre attached to the apex of a silicon thermal tip as a local temperature…

Mesoscale and Nanoscale Physics · Physics 2015-11-24 Abdelghani Laraoui , Halley Aycock-Rizzo , Yang Gao , Xi Lu , Elisa Riedo , Carlos A. Meriles

Enhancement of thermal conductivity via surface electromagnetic waves (SEWs) supported in nanostructures has recently drawn attention as a remedy for issues raised due to the reduction of thermal conductivity in nanoscale confinement. Among…

Applied Physics · Physics 2019-10-03 Mikyung Lim , Jose Ordonez-Miranda , Seung S. Lee , Bong Jae Lee , Sebastian Volz

In this paper, equilibrium molecular dynamics simulations were performed on Au-SAM (self-assembly monolayer)-Au junctions. The SAM consisted of alkanedithiol molecules. The out-of-plane (z-direction) thermal conductance and in-plane (x- and…

Mesoscale and Nanoscale Physics · Physics 2011-11-22 Tengfei Luo , John R. Lloyd

Crystalline two-dimensional (2D) superconductors with low carrier density are an exciting new class of materials in which superconductivity coexists with strong interactions, the effects of complex topology are not obscured by disorder, and…

The integration of high-thermal-conductivity diamond films onto silicon carbide (SiC) substrates offers a promising pathway for thermal management in high-power electronic devices. Here, we investigate the depth-dependent thermal…

Materials Science · Physics 2026-04-15 Kexin Zhang , Xiaosong Han , Ershuai Yin , Xin Qian , Junjun Wei , Puqing Jiang