A5100375099- Magnetic properties of thin films
- Thermal properties of materials
- Magneto-Optical Properties and Applications
- Physics of Superconductivity and Magnetism
- Quantum and electron transport phenomena
- Graphene research and applications
- Thermography and Photoacoustic Techniques
- Conducting polymers and applications
- Magnetic Properties and Applications
- Perovskite Materials and Applications
- Magnetic and transport properties of perovskites and related materials
- Astronomy and Astrophysical Research
- ZnO doping and properties
- Organic Electronics and Photovoltaics
- Metallic Glasses and Amorphous Alloys
- Thermal Radiation and Cooling Technologies
- Heat Transfer and Optimization
- Carbon Nanotubes in Composites
- Image Enhancement Techniques
- Heat Transfer and Boiling Studies
- Heat Transfer Mechanisms
- Ocular and Laser Science Research
- Advanced Thermoelectric Materials and Devices
- Magnetic Properties and Synthesis of Ferrites
- Cold Atom Physics and Bose-Einstein Condensates
Shenzhen Technology University
2020-2024
China Aerodynamics Research and Development Center
2020
University of Groningen
2016-2018
South China University of Technology
2013-2014
Wuhan University of Science and Technology
2011
Hunan Institute of Science and Technology
2010
Tsinghua University
2006
The photothermal phenomenon involves material photon heating in the form of continuous waves, modulated or pulses. resulting temperature rise carries very rich information about material's structures and thermophysical properties. This review is constructed to cover some extended ideas for measuring a properties interface thermal conductance/resistance. For frequency-domain phenomena, photoacoustic (PA) radiation (PT) techniques provide great ways measure coatings suspended samples, which...
We report a novel mechanism for the electrical injection and detection of out-of-plane spin accumulation via anomalous Hall effect (ASHE), where direction can be controlled by manipulating magnetization ferromagnet. This is distinct from (SHE), created along fixed parallel to an interface. demonstrate this unique property ASHE in nanowires made permalloy (Py) inject detect magnetic insulator, yttrium iron garnet (YIG). show that efficiency injection/detection spins up 50% in-plane spins....
Abstract Interfacial thermal resistance plays a crucial role in efficient heat dissipation modern electronic devices. It is critical to understand the interfacial transport from both experiments and underlying physics. This review focused on transient opto-thermal Raman-based techniques for measuring between 2D materials substrate. idea eliminates use of laser absorption absolute temperature rise data, therefore provides some highest level measurement accuracy physics understanding. Physical...
The nonlocal transport of thermally generated magnons not only unveils the underlying mechanism spin Seebeck effect, but also allows for extraction magnon relaxation length ($\lambda_m$) in a magnetic material, average distance over which thermal can propagate. In this study, we experimentally explore yttrium iron garnet (YIG)/platinum systems much further ranges compared with previous investigations. We observe that SSE signals at long distances ($d$) clearly deviate from typical...
Spin–orbit torques (SOTs) in compensated ferrimagnets (FMs) have been widely studied due to their abundant advantages for the application spintronic devices. Recently, SOT FM metals near compensation tuned by composition and temperature has reported. However, insulators (FMIs) still remains elusive. In this work, we report study of FMI temperature. First, Pt/Gd3Fe5O12 (GdIG) bilayer films with high crystallinity perpendicular magnetic anisotropy were fabricated magnetron sputtering. Then,...
Graphene possesses weak electron–phonon interactions, small electron heat capacity, and broad-band absorption, which make it an excellent candidate as a fast sensitive bolometer. This work studies the bolometric performance of fluorinated graphene (FG) films, were synthesized using vacuum filtration-assisted method with FG chitosan. Thermal annealing (200–1000 °C) under Ar atmosphere was used to modulate fluorine density. The electrical resistivity thermal conductivity measured from 320 10...
Developing dopant-free hole-transporting materials (HTMs) with high hole mobilities is essential to achieve efficient and stable inorganic perovskite solar cells (PVSCs). Herein, two linear organic small molecules IDTT-EtCz IDTT-PhCz D–A–D’–A–D configurations are designed synthesized via yield steps, they successfully employed as HTMs effective defect passivation in all-inorganic PVSCs. Notably, the exhibits a deeper highest occupied molecular orbital energy level comparing that of...
Abstract The chemical property of the buried interface plays a crucial role in improving performance and stability perovskite solar cells (PSCs). SnO 2 /perovskite prepared from alkaline hydrogel with high proton affinity triggers directional migration irreversible reactions protons, exacerbating disintegration crystal. In this study, we proposed precompensation strategy to suppress deprotonation effect improve durability devices. By modulating environment surface energy state interface,...
In order to improve aerodynamic efficiency and obtain large lift-drag ratio, unmanned aerial vehicles with high altitude long endurance usually have wing aspect ratio flexibility, resulting in static aeroelastic deformation up 25% of half-extension. Therefore, aerostatic-elastic influencing factors must be included the design objective. development stage aircraft, research mainly relies on wind tunnel test numerical calculation. For tests, elastic model focuses meeting requirements...
Past work has focused on the thermal properties of microscale/nanoscale suspended/supported graphene. However, for design graphene-based devices, giant-scale (~mm) graphene, which reflects effect grains, must also be investigated and are critical. In this work, conductivity variation with temperature chemical vapor decomposition (CVD) graphene supported by poly(methyl methacrylate) (PMMA) is characterized using differential transient electrothermal technique (diff-TET). Compared to commonly...
Organic-inorganic halide perovskites have demonstrated preeminent optoelectronic performance in recent years due to their unique material properties, and shown great potential the field of photodetectors. In this study, a coupled opto-electronic model is constructed reveal hidden mechanism enhancing perovskite photodetectors that are suitable for both inverted regular structure doped p-i-n photodiodes. Upon illumination, generation rate photogenerated carriers calculated followed by carrier...
In magnetic insulators, transport of charge is prohibited due to the large bandgap. Spin can still be transported however by spin waves (magnons), excitations systems. The field that studies properties in insulators known as magnon spintronics [1]. past years, research has been focused on dipolar magnons, which are low-energy waves. We have shown [2] magnons with energy comparable thermal (exchange magnons) also over long distances, characterized a diffusion length λ ≈ 9.5 μm. developed...
Co 2.73 Fe 0.27 O 4 nanoparticles were synthesized using the heat-decomposition method followed by annealing treatment. X-ray diffraction (XRD) analysis shows that most of peaks are close to data for antiferromagnetic 3 , while weak CoFe 2 also detected. It indicates prepared particles can be reckoned as a composite with small size FM embed in large thickness AFM matrix. The magnetic hysteresis loops powders measured at 10 K zero-field cooling (ZFC) and field (FC) procedures show negative...
A novel porous micro heat sink system is presented for dissipating high flux of electronic devices. Numerical model the proposed to describe transfer in metallic wall and liquid flow wick structure, it solved with SIMPLE algorithm as a conjugate problem. The numerical results showed that heated surface temperature low at fluxes. Increasing inlet fluid velocity can greatly decrease temperatures bottom surface. maintain good isothermal characteristic when located sink.