A5000165978- Thermal properties of materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- High-pressure geophysics and materials
- Ferroelectric and Piezoelectric Materials
- Advanced Thermoelectric Materials and Devices
- Thermal Radiation and Cooling Technologies
- Electronic and Structural Properties of Oxides
- Higher Education and Teaching Methods
- GaN-based semiconductor devices and materials
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- Electrospun Nanofibers in Biomedical Applications
- Magnetic properties of thin films
- Hydrogels: synthesis, properties, applications
- Perovskite Materials and Applications
- Semiconductor materials and devices
- Wound Healing and Treatments
- Quantum, superfluid, helium dynamics
- Heat Transfer and Optimization
- Cold Atom Physics and Bose-Einstein Condensates
- Topological Materials and Phenomena
- Biotechnology and Related Fields
- Chemical Thermodynamics and Molecular Structure
- Electron and X-Ray Spectroscopy Techniques
Dalian University of Technology
2022-2025
Ocean Energy (Norway)
2025
Shanghai East Hospital
2024
Beijing Institute of Technology
2023
Huazhong University of Science and Technology
2023
GlobalFoundries (Singapore)
2013-2020
Institute of Chemistry
2002
Guangzhou Chemistry (China)
2002
Understanding thermal transport behaviors across dissimilar metal films is essential for optimizing electronic devices' performance and efficiency. However, the effect of interfacial parameters such as thickness on conductance (G) metal/metal remains elusive. In this Letter, G between Al Cu with varying was investigated from 78 to 295 K using time domain thermoreflectance technique combined nonequilibrium molecular dynamics (NEMD) simulations diffuse mismatch model (DMM). The temperature...
Nanofilms (NFs) have been widely used in many emerging applications, such as microelectronic devices, spintronics, and optical instruments. Characterizing the thermal conductivity (k) of NFs, kNFs, is nontrivial for both fundamental science industrial applications. Time-domain thermoreflectance (TDTR) a powerful technique characterizations under nano-to-micro-scales. However, kNFs interface resistance between layers are generally unknown parameters when analyzing TDTR signals. So that an...
Tin telluride (SnTe), a promising mid-temperature thermoelectric material, faces limitations due to inherent vacancies and band characteristics. Low-dimensionalization represents one avenue potentially improve performance. This work explores the SnTe films with varying thicknesses (67–610 nm) Zn doping concentration (0–12.81%) at high temperature. A 224 nm-SnTe-film exhibits optimal ZT values (0.27 600 K), Zn-doped experience impaired properties, electrical conductivity reduction being...
Pressure is an effective way to regulate physical properties of ABO3 perovskites, such as thermal conductivity κ SrTiO3, which can enhance fundamental understanding structure–property relationships. In this Letter, SrTiO3 was investigated up ∼20 GPa using high-pressure time domain thermoreflectance together with Raman spectroscopy and first-principles calculations. Our theoretical predictions effectively explain the measured results. both cubic tetragonal phases, increased compression,...
The thickness of the metal-transducer nano-film is an essential parameter for high-pressure time-domain-thermoreflectance (TDTR) measurements. In this article, accurate method was proposed to determine transducer in conditions using pressure-volume equation state combined with image processing method. Both elastic and plastic deformation sample squeezed diamond anvil cells were considered High-pressure TDTR measurements on thermal conductivity MgO mica further taken comparing influence from...
Abstract Stimuli‐responsive hydrogels have the capability to alter their state in response changes physiological signals within application environment, providing distinct benefits drug delivery applications. Here, acidic pH typically found acutely infected wounds can be effectively managed by incorporating a pH‐responsive Ag + loaded system hydrogel, thereby ensuring efficient use and preventing potential toxicity from sudden release of silver ions. The antimicrobial composite hydrogel...
Two stacks of nanotube arrays are joined together, driven by the nanoscale Kirkendall effect. The background images show elemental mapping copper and oxygen. contrast colors shown in maps represents intensity signals. Such analysis reveals that interface nanotubes is oxide. On page 2546, C. L. Gan co-workers demonstrate transformation from Cu nanowire into oxide can be coupled with joining stacked chips a single step process. By controlling environment, temperature, duration, Cu2O or CuO...
Perpendicular magnetic materials with low damping constant and high thermal stability have great potential for realizing high-density, non-volatile, low-power consumption spintronic devices, which can sustain operation reliability processing temperatures. In this work, we study the Gilbert ({\alpha}) of perpendicularly magnetized W/CoFeB/MgO films a perpendicular anisotropy (PMA) superb stability. The {\alpha} these PMA annealed at different temperatures is determined via an all-optical...
Abstract This work reports the thermal conductivity of RbV 3 Sb 5 and CsV with three-dimensional charge density wave phase transitions from 80 K to 400 measured by pump-probe thermoreflectance techniques. At room temperature, in-plane (basal plane) conductivities are found moderate, i.e., 12 W m -1 8.8 , ultralow cross-plane (stacking direction) observed, 0.72 0.49 at 300 K. A unique glass-like temperature dependence in is discovered, which decreases monotonically even lower than Cahill-Pohl...
The investigation of materials' behavior under high-temperature and high-pressure conditions, such as the correlation with structural characteristics thermal properties, holds significant importance. However, challenges associated experimental implementation have, to a certain extent, constrained research endeavors. We utilized ultrafast laser based non-contact measurement method combined an externally heated moissanite-anvil-cell characterize conductivity [10-10] oriented SiO2 crystals high...
In this paper we demonstrate the analytical method using electron energy-loss spectroscopy (EELS) in defect analysis for semiconductor devices. We discuss limitation of X-ray energy-dispersive (EDS) material characterization and show how EELS can be a good complement to EDS. two case studies utilizing spectrum characterization. both studies, oxygen K-edge chemical shift is used differentiate oxidized metallic layer bulky Si oxide give more accurate defective layers root-cause understanding.