A5023180656- Magnetic confinement fusion research
- Fusion materials and technologies
- Thermal properties of materials
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Orbital Angular Momentum in Optics
- Nuclear reactor physics and engineering
- Atmospheric Ozone and Climate
- Semiconductor materials and devices
- Atmospheric chemistry and aerosols
- Advanced materials and composites
- GaN-based semiconductor devices and materials
- Laser-Plasma Interactions and Diagnostics
- Superconducting Materials and Applications
- Luminescence Properties of Advanced Materials
- Plasma Diagnostics and Applications
- Heat Transfer and Boiling Studies
- Advanced ceramic materials synthesis
- Plasmonic and Surface Plasmon Research
- Air Quality and Health Impacts
- Radiation Detection and Scintillator Technologies
- Thermal Radiation and Cooling Technologies
- Photochemistry and Electron Transfer Studies
- Electrocatalysts for Energy Conversion
- Metamaterials and Metasurfaces Applications
Chinese Academy of Sciences
2007-2024
Second Artillery General Hospital of Chinese People's Liberation Army
2020-2024
BOE Technology Group (China)
2024
Institute of Semiconductors
2020-2024
University of Chinese Academy of Sciences
2020-2024
Nanjing University of Aeronautics and Astronautics
2002-2023
Ministry of Industry and Information Technology
2018-2023
Hebei Normal University
2020-2022
Chinese Academy of Medical Sciences & Peking Union Medical College
2022
Xiyuan Hospital
2022
The synthesis of materials with well-controlled composition and structure improves our understanding their intrinsic electrical transport properties. Recent developments in atomically controlled growth have been shown to be crucial enabling the study new physical phenomena epitaxial oxide heterostructures. Nevertheless, these can influenced by presence defects that act as extrinsic sources both doping impurity scattering. Control over nature density such is therefore necessary, are we fully...
Owing to the miniaturization, portability and wearable of electronic devices, demand for advanced thermal management materials has increased significantly, especially highly thermally conductive materials. In this paper, a simple effective strategy synthesizing high conductivity copper-graphene (Cu-rGO) was proposed. The microstructure, properties capabilities composite film were studied. It found that obtained Cu-rGO exhibits excellent flexibility (637.7 W m−1 K−1). indicates introduction...
A concise, efficient, and practical direct-view scheme is presented to generate arbitrary cylindrical vector (CV) beams, including CV vortex (CVV) by a half-wave plate (VHP). Six kinds of first-order other high-order such as azimuthally polarized (AP) antivortex radial polarization mode three-order AP are formed simply rotating plate. The Stokes parameters double-slit interference multitype beams investigated in detail. parameters, degree polarization, azimuth, ellipticity, obtained, which...
By the end of September 2006, engineering commissioning Experimental Advanced Superconducting Tokamak (EAST) was completed and first H2 plasma achieved with stainless steel as plasma-facing material (PFM). In following phases, gradual increase in heating power, EAST divertor targets have to handle expected heat loads up ∼10 MW m−2. The PFMs be employed include doped graphite W coatings. former will used cover whole surface phase, then latter applied replace tiles gradually second finally a...
Abstract. Environmental temperature plays a vital role in controlling chemical transformations that lead to the formation of secondary organic aerosol (SOA) and ultimately impact composition optical properties particles. In this study, we investigated n-dodecane SOA under two conditions: 5 25 ∘C. It was shown low-temperature conditions could enhance real part refractive index (RI) at wavelengths 532 375 nm. Mass spectrometry analysis revealed molecular significantly modified by temperature:...
Beyond traditional heteroepitaxy, 2D-materials-assisted epitaxy opens opportunities to revolutionize future material integration methods. However, basic principles in 2D-material-assisted nitrides' remain unclear, which impedes understanding the essence, thus hindering its progress. Here, crystallographic information of nitrides/2D interface is theoretically established, further confirmed experimentally. It found that atomic interaction at related nature underlying substrates. For...
We measured thermal conductivity and electrical in organic/inorganic composites with Ag nanowires (NWs) embedded a poly(vinylidene fluoride) matrix. High conductivities of 8.43 W/(mK) 1.02 ×106 S/m are achieved, respectively, when the volume fraction NWs reaches 28.34%. Both obey universal power law commonly described percolation theory. The behaviors clearly observed is above critical (2.25%), due to formation spanning cluster. Further calculations on Lorenz number as function NW also...
Abstract. Secondary organic aerosol (SOA) has great impacts on air quality, climate change and human health. The composition physicochemical properties of SOA differ greatly because they form under different atmospheric conditions from various precursors as well differing oxidation. In this work, photooxidation experiments toluene were performed four (dry, dry with SO2, wet SO2) to investigate the effect SO2 relative humidities optical at wavelengths 375 532 nm. According our results,...
We present an optical method of simultaneous measurement liquid surface tension, contact angle, and the curved shape, which uses light reflection from this due to wettability. When expanded collimated laser beam is incident upon surfaces vertically, special pattern, includes a dark central region bright field outside, was observed. A critical spot on found, distribution related both width incidence spot. In our experiment, different patterns were recorded when changed. The shape measured...
A practical direct-view scheme for generating arbitrary high-order cylindrical vector (HCV) beams by cascading vortex half-wave plates (VHPs) is presented. The combination of odd number 2n-1 VHPs n≥1 can realize ( m -m 2n-2 +…+m 1 )-order CV beams, in which the order VHP and corresponding subscript represents arrangement VHPs, even 2n ones obtain 2 beams. All 1-12 including anti-vortex (ACV) are generated only selectively with =1, 3 8. polarization properties HCV investigated measuring...
Data security is a major concern in digital age, which generally relies on algorithm-based mathematical encryption. Recently, encryption techniques based physical principles are emerging and being developed, leading to the new generation of moving from mathematics intersection physics. Here, device-level with ideal ingeniously achieved using modulation electron-hole radiative recombination GaN-light-emitting diode (LED). When nano-LED driven non-carrier injection mode, oscillation confined...
To analyze the outcomes of Supera stent deployment in Chinese patients with atherosclerotic femoropopliteal artery (FPA) disease a real-world setting.This retrospective cohort study collected and analyzed medical records 246 consecutive who received stents for FPA at China Academy Medical Sciences Xiyuan Hospital between February 2017 December 2019. All underwent balloon angioplasty were treated (Abbott Vascular, Santa Clara, CA, USA). The primary outcome was rate patency 12 months after...
Interfacial thermal conductance between dissimilar materials plays an important role in solving the overheating problem and thus improving performance of photonic electronic devices, especially those at micro- nano-scale. However, conclusive heat transfer mechanism across interfaces is absent, metal–nonmetal interfaces. Heat a interface determined by interplay among different carriers. In metal, both electrons phonons carry heat, while nonmetal, only are dominant The interactions these...
The preparation of various aza‐heteroaromatic dithiocarbamates from bromides and tetraalkylthiuram disulfides is reported. transformation provides a convenient procedure, with good yields functional group tolerance to important nitrogen‐containing heteroaromatic such as benzothiazole, quinoline, pyridine, pyrazine motifs. This protocol allows the facile synthesis some potential biologically active compounds.
A two-channel, time–wavelength interleaved photonic analog-to-digital converter (PADC) system with a sampling rate of 10.4 GSa/s was established, and concise method for measuring data correcting the channel timing walk-off PADCs signal recovery proposed. The measurements show that two RF signals f1 = 100 MHz f2 200 MHz, 12 periods, which results in an ENOB −0.1051 bits directly synthesized signal, while improved up to 4.0136 using shift synthesis. In addition, peak limit (PLM) normalization...
The majority of dislocations in nitride epilayers are edge threading (TDs), which diminish the performance devices. However, it is extremely difficult to reduce TDs due lack available slip systems. Here, we systematically investigate formation mechanism and find that besides originating at coalescence boundaries, these also closely related geometrical misfit interface. Based on this understanding, propose a novel strategy TD density GaN epilayer by nearly 1 order magnitude via...
A detailed examination of the intrinsic stress development within and mechanical properties Ti containing hydrocarbon (Ti–C:H) coatings deposited in an inductively coupled plasma assisted hybrid chemical vapor deposition/physical deposition environment has been carried out, combining situ substrate curvature measurements with probe measurements, ex electrical resistivity instrumented nanoindentation measurements. Intrinsic stresses Ti–C:H have found to be compressive over wide ranging...