Thermal conductivity of materials under pressure

Y Zhou, ZY Dong, WP Hsieh, AF Goncharov… - Nature Reviews …, 2022 - nature.com
The thermal conductivities of materials are extremely important for many practical
applications, such as in understanding the thermal balance and history of the Earth, energy …

A review of thermoreflectance techniques for characterizing wide bandgap semiconductors' thermal properties and devices' temperatures

C Yuan, R Hanus, S Graham - Journal of Applied Physics, 2022 - pubs.aip.org
Thermoreflectance-based techniques, such as pump–probe thermoreflectance (pump–
probe TR) and thermoreflectance thermal imaging (TTI), have emerged as the powerful and …

Quantitative study on thermoreflectance linear relation

B Meng, Y Ma, X Wang, C Yuan - Journal of Applied Physics, 2023 - pubs.aip.org
Standard thermoreflectance-based measurements have been routinely taken on thin metal
transducer (Au or Al) deposited samples. This is based on the fundamental hypothesis that …

Transient hydrodynamic lattice cooling by picosecond laser irradiation of graphite

J Jeong, X Li, S Lee, L Shi, Y Wang - Physical Review Letters, 2021 - APS
Recent theories and experiments have suggested hydrodynamic phonon transport features
in graphite at unusually high temperatures. Here, we report a picosecond pump-probe …

Transducer-less thermoreflectance technique for measuring thermal properties of the buried buffer layer and interface in GaN-based HEMTs

C Yuan, B Meng, Y Mao, M Wu, F Jia… - ACS Applied …, 2022 - ACS Publications
Measuring the thermal properties of the buried GaN buffer layer and interface in GaN high-
electron mobility transistor (HEMT) structures is of crucial importance. This remains …

Electrical and thermal characterisation of liquid metal thin-film GaO–SiO heterostructures

A Petkov, A Mishra, M Cattelan, D Field, J Pomeroy… - Scientific Reports, 2023 - nature.com
Heterostructures of Ga 2 O 3 with other materials such as Si, SiC or diamond, are a possible
way of addressing the low thermal conductivity and lack of p-type do** of Ga 2 O 3 for …

Quantum genetic algorithm assisted high speed and precision pump-probe thermoreflectance characterization of micro-/nano-structures

Y Xu, Y He, J Yang, Y Zhou, A Wu, C Yu, Y Zhai… - International Journal of …, 2024 - Elsevier
The rapid and precise extraction of thermophysical properties remains an enormous
challenge in pump-probe thermoreflectance, and quantum algorithms present significant …

Study on thermoreflectance linear relation of gallium nitride epitaxial structures at above-bandgap wavelength

Y Ma, M Wu, H Zhang, H Sun, C Yuan - Materials Today Physics, 2024 - Elsevier
Increasing attention has been paid to the transducer-less thermoreflectance measurements
on gallium-nitride (GaN) semiconductors to reveal their thermal properties as well as …

Thermoreflectance-based thermometry of silicon thin films with resonantly enhanced temperature sensitivity

C Shi, X Wang, Q Zheng, J Maroske, D Thompson - Optics Express, 2023 - opg.optica.org
We demonstrate a thermoreflectance-based thermometry technique with an ultimate
temperature resolution of 60 µK in a 2.6 mHz bandwidth. This temperature resolution was …

Thermal properties of copper nanoparticles at different sintering stages governed by nanoscale heat transfer

J Jeong, Y Wang - Additive Manufacturing Letters, 2023 - Elsevier
Utilizing metal nanoparticles (NPs) in Additive Manufacturing (AM) enables fabricating parts
with sub-micrometer resolution. The thermal properties of metal NPs are drastically different …