183 citations · 735 across the 13 of their papers we have counts for
13 papers
Experimental Observation of Localized Interfacial Phonon Modes
Zhe Cheng, Ruiyang Li, Xingxu Yan +12
Interfaces impede heat flow in micro/nanostructured systems. Conventional theories for interfacial thermal transport were derived based on bulk phonon properties of the materials m…
Phonon heat conduction in Al1-xScxN thin films
Chao Yuan, Mingyo Park, Yue Zheng +4
Aluminum scandium nitride alloy (Al1-xScxN) is regarded as a promising material for high-performance acoustic devices used in wireless communication systems. Phonon scattering and…
Quasi-Ballistic Thermal Conduction in 6H-SiC
Zhe Cheng, Weifang Lu, Jingjing Shi +9
The minimization of electronics makes heat dissipation of related devices an increasing challenge. When the size of materials is smaller than the phonon mean free paths, phonons tr…
Experimental Observation of High Intrinsic Thermal Conductivity of AlN
Zhe Cheng, Yee Rui Koh, Abdullah Mamun +17
AlN is an ultra-wide bandgap semiconductor which has been developed for applications including power electronics and optoelectronics. Thermal management of these applications is th…
Integration of Atomic Layer Epitaxy Crystalline Ga2O3 on Diamond for Thermal Management
Zhe Cheng, Virginia D. Wheeler, Tingyu Bai +6
Ga2O3 has attracted great attention for electronic device applications due to its ultra-wide bandgap, high breakdown electric field, and large-area affordable substrates grown from…
Thermal boundary resistance predictions with non-equilibrium Green's function and molecular dynamics simulations
Yuanchen Chu, Jingjing Shi, Kai Miao +6
The non-equilibrium Green's function (NEGF) method with Büttiker probe scattering self-energies is assessed by comparing its predictions for the thermal boundary resistance with mo…
Thermal Conductance Across Harmonic-matched Epitaxial Al-sapphire Heterointerfaces
Zhe Cheng, Yee Rui Koh, Habib Ahmad +17
A unified understanding of interfacial thermal transport is missing due to the complicated nature of interfaces which involves complex factors such as interfacial bonding, interfac…
High Thermal Boundary Conductance across Bonded Heterogeneous GaN-SiC Interfaces
Fengwen Mu, Zhe Cheng, Jingjing Shi +5
GaN-based HEMTs have the potential to be widely used in high-power and high-frequency electronics while their maximum output powers are limited by high channel temperature induced…
Significantly Reduced Thermal Conductivity in Beta-(Al0.1Ga0.9)2O3/Ga2O3 Superlattices
Zhe Cheng, Nicholas Tanen, Celesta Chang +6
Beta-Ga2O3 has emerged as a promising candidate for electronic device applications because of its ultra-wide bandgap, high breakdown electric field, and large-area affordable subst…
Thermal Conductance across beta-Ga2O3-diamond Van der Waals Heterogeneous Interfaces
Zhe Cheng, Luke Yates, Jingjing Shi +3
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 pot…
Dramatic increase in the thermal boundary conductance and radiation limit from a Nonequilibrium Landauer Approach
Jingjing Shi, Xiaolong Yang, Timothy S. Fisher +1
Thermal boundary conductance (TBC) is critical in many thermal and energy applications. A decades-old puzzle has been that many of the measured TBCs, such as those well characteriz…
Tunable Thermal Energy Transport across Diamond Membranes and Diamond-Si Interfaces by Nanoscale Graphoepitaxy
Zhe Cheng, Tingyu Bai, Jingjing Shi +14
The development of electronic devices, especially those that involve heterogeneous integration of materials, has led to increased challenges in addressing their thermal operational…
Spectral analysis of non-equilibrium molecular dynamics: spectral phonon temperature and phonon local non-equilibrium in thin films and across interfaces
Tianli Feng, Wenjun Yao, Zuyuan Wang +4
Although extensive experimental and theoretical works have been conducted to understand the ballistic and diffusive phonon transport in nanomaterials recently, direct observation o…