A5100622102- Spectroscopy and Laser Applications
- GaN-based semiconductor devices and materials
- Atmospheric Ozone and Climate
- Complex Network Analysis Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Combustion and flame dynamics
- Semiconductor materials and devices
- Advanced Optical Sensing Technologies
- Ga2O3 and related materials
- Mass Spectrometry Techniques and Applications
- Gas Dynamics and Kinetic Theory
- Opinion Dynamics and Social Influence
- Atomic and Molecular Physics
- Laser Design and Applications
- Plasma Diagnostics and Applications
- Laser-Plasma Interactions and Diagnostics
- Spectroscopy Techniques in Biomedical and Chemical Research
- Plasmonic and Surface Plasmon Research
- Advanced Combustion Engine Technologies
- ZnO doping and properties
- Laser-Matter Interactions and Applications
- Atmospheric chemistry and aerosols
- Analytical Chemistry and Sensors
- Atomic and Subatomic Physics Research
- Supercapacitor Materials and Fabrication
University of Tennessee at Knoxville
2016-2025
Tongren Hospital
2024
Knoxville College
2022-2024
Shandong University
2024
Guizhou University
2024
Wuhan Third Hospital
2024
Wuhan University
2005-2024
Qilu University of Technology
2019-2023
Shandong Academy of Sciences
2022-2023
Jiangnan University
2019-2023
Supercapacitors with the advantages of high power density and fast discharging rate have full applications in energy storage. However, low restricts their development. Conventional methods for improving are mainly confined to doping atoms hybridizing other active materials. Herein, a Co3O4/g-C3N4 p-n junction excellent capacity is developed its application an all-solid-state flexible device demonstrated, whose considerably enhanced by simulated solar light irradiation. Under...
This paper investigates the performance of AlGaN/gallium nitride (GaN) MIS high electron mobility transistors (MIS-HEMTs). The gate dielectric layer and surface passivation are formed by low-pressure chemical vapor deposition (LPCVD) Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> . LPCVD-Si MIS-HEMTs exhibit a breakdown voltage (BV) 1162 V at I...
In this letter, we report a method by introducing hydrogen plasma treatment to realize normally-off p-GaN/AlGaN/GaN HEMT devices. Instead of using etching technology, was adopted compensate holes in the p-GaN above two dimensional electron gas (2DEG) channel release electrons 2DEG and form high-resistivity area reduce leakage current increase gate control capability. The fabricated exhibits operation with threshold voltage 1.75 V, subthreshold swing 90 mV/dec, maximum transconductance 73.1...
In the present work, a ZnO nanowire array/reduced graphene oxide film hybrid nanostructure was realized, and photovoltaic responses from visible to near-infrared range were investigated. Compared with pure array rGO thin film, composite exhibited fast greatly enhanced broadband response that resulted formation of interfacial Schottky junctions between rGO.
ABSTRACT. A Y‐tube olfactometer was used to test the reactions of hymenopteran cereal aphid parasitoids Aphidius uzbekistanicus Luzhetski and A. ervi Haliday odours from aphids their host plants. Only females responded but both sexes plant odours. Sitobion avenae (F.) Metopolophium dirhodum (Walker) whilst , which has a broad range, M. pea aphid, Acyrthosiphon pisum. Female wheat leaves only males range material. Both male female bean leaves. The failure respond either nettle aphids,...
Multiphoton ionization and electron recombination processes are studied in argon using coherent microwave Rayleigh scattering from a localized, resonance-enhanced multiphoton produced plasma. A time dependent one-dimensional plasma dynamic model is developed to predict the evolution of Experimental results spectrum rates good agreement with predictions.
Abstract Background Over the last decade safety concerns have arisen about use of metal-based nanoparticles in cosmetics field. Metal-based been linked to both environmental and animal toxicity a variety studies. Perhaps greatest concern involves large amounts TiO 2 that are used commercial sunscreens. As an alternative using these potentially hazardous nanoparticles, we isolated organic from English ivy ( Hedera helix ). In this study, were evaluated for their potential sunscreens based on...
A facile method to synthesize flower-like gold nanostructures showing multiple tips with dendritic structures is developed through a one-step reduction of HAuCl4 dopamine at room temperature. The nanoflowers clearly increase the surface enhanced Raman scattering (SERS) effect, demonstrate promising biocompatibility, and could be internalized by cancer cells, indicating their potential for biomedical applications.
In this letter, we report an in-situ predeposition plasma nitridation process, which is adopted to remove the GaN surface oxygen-related bonds and reduce dangling by forming Ga-N prior low-pressure chemical vapor deposition (LPCVD)Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> deposition. It demonstrates that Vth hysteresis current collapse of device were dramatically improved due...
We report, in this paper, several findings about the swimming and attachment mechanisms of Giardia lamblia trophozoites. These data were collected using a combination high-contrast CytoViva imaging system particle image velocimetry camera, which can capture images at speeds greater than 800 frames/s. Using system, we discovered that, during rapid trophozoites, undulations caudal region contributed to forward propulsion combined with beating flagella pairs. It was also discovered, contrast...
This letter presents a fabrication technology of enhancement-mode (E-mode) AlGaN/GaN metal-insulator- semiconductor high-electron mobility transistors (MIS-HEMTs) using 10 keV fluorine ion implantation. An 8 nm low-pressure chemical vapor deposition silicon nitride layer was deposited on the AlGaN as gate dielectric and energy-absorbing that slows down high energy (10 keV) ions to reduce implantation damage. The E-mode MIS-HEMTs exhibit threshold voltage +3.3 V with maximum drain current...
Abstract Bonding and anti-bonding modes of plasmon coupling effects are numerically investigated in TiO 2 -Ag core-shell nano dimers. First, splitting phenomena the coupled observed under longitudinal polarization when distance between monomers decreases to a certain level. Second, one split resonance is identified be formed by dipole mode from charge density distribution patterns. Those have similar redshift behaviors as bonding same situations. Furthermore, intensities those weaken with...
A fundamental regulatory framework to elucidate the role of electrical stimulation (ES) in reducing long production cycles, enhancing protein utilization, and boosting product quality dry-cured ham is essential. However, how mitochondria enzymes meat fibers are altered by ES during post-processing, curing, fermentation procedures remains elusive. This study sought explore impact on regulation heat shock proteins (HSP27, HSP70), apoptotic pathways, subsequent influences pork loin quality. The...
We report the direct measurements of methyl radicals (CH(3)) in methane/air flames at atmospheric pressure by using coherent microwave Rayleigh scattering (Radar) from Resonance Enhanced Multi-Photon Ionization (REMPI), also known as Radar REMPI technique. A tunable dye laser was used to selectively induce (2 + 1) ionization (CH(3), 3p(2)A(2)('')0(0)(0) band) a near adiabatic and premixed laminar flame, generated Hencken burner. In situ electrons were made non-intrusively homodyne...
Detailed characterizations of picosecond laser electronic excitation tagging (PLEET) in pure nitrogen ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msub> <mml:mi mathvariant="normal">N</mml:mi> </mml:mrow> <mml:mn>2</mml:mn> </mml:msub> </mml:math> ) and air with a 24 ps burst-mode system have been conducted. The is seeded 200 fs broadband seeding to achieve short pulse duration. As non-intrusive molecular velocimetry...