Qi Wang

ORCID: 0000-0002-7002-5065
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About
Contact & Profiles
Research Areas
  • 2D Materials and Applications
  • MXene and MAX Phase Materials
  • Perovskite Materials and Applications
  • Metal-Catalyzed Oxygenation Mechanisms
  • Graphene research and applications
  • Porphyrin and Phthalocyanine Chemistry
  • Transition Metal Oxide Nanomaterials
  • Advanced Memory and Neural Computing
  • Polymer composites and self-healing
  • Geotechnical Engineering and Soil Stabilization
  • Heme Oxygenase-1 and Carbon Monoxide
  • Thermal properties of materials
  • Ga2O3 and related materials
  • Plasmonic and Surface Plasmon Research
  • ZnO doping and properties
  • Nanoplatforms for cancer theranostics
  • Antioxidant Activity and Oxidative Stress
  • Extracellular vesicles in disease
  • Carbon Nanotubes in Composites
  • Advanced biosensing and bioanalysis techniques
  • Electronic and Structural Properties of Oxides
  • Ferroelectric and Negative Capacitance Devices
  • Thin-Film Transistor Technologies
  • Geotechnical and construction materials studies
  • Organic and Molecular Conductors Research

Peking University
2022-2025

South China University of Technology
2009-2023

Henan University of Science and Technology
2022

Shandong University
2022

Xuzhou Medical College
2019-2020

National Center for Nanoscience and Technology
2019-2020

Xuzhou University of Technology
2019

Guangzhou University of Chinese Medicine
2019

Understanding the formation and recombination dynamics between excitons trions is critical for evaluating improving performance of two-dimensional material-based optoelectronic devices. Herein, we have investigated competitive luminescence processes intralayer in WS2/WSe2 heterostructures with different (0°, 30°, 60°) twisted angles. We observed increased photoluminescence (PL) ratio compared to angles 30° 60°. For a angle relatively large PL caused by high probability trion than that...

10.1021/acsphotonics.9b00855 article EN ACS Photonics 2019-11-15

Abstract In 2D transition metal dichalcogenides (TMDs), trions have important applications in fundamental studies of multibody phenomena, novel optoelectronic devices, and valleytronic devices. However, the enhancement trion emission, particular how carrier dynamics is influenced when coupled with plasmonic cavity, for a deep understanding their further utilization. this study, strong emission achieved by coupling monolayer WS 2 nanocavity. Temperature‐dependent photoluminescence, dark‐field...

10.1002/adom.202001147 article EN Advanced Optical Materials 2020-10-28

The advent of graphene and other two-dimensional (2D) materials offers great potential for optoelectronic applications. Various device structures novel mechanisms have been proposed to realize photodetectors with unique detecting properties. In this minireview, we focus on a self-driven photodetector that has low-power or even powerless operation required in the internet things wearable electronics. To address general principle properties, propose elaborate concept symmetry breaking 2D...

10.1039/d0nr01326a article EN Nanoscale 2020-01-01

Both carbon nanotube (CNT) and graphene exhibit excellent properties have many potential applications in integrated circuits, composite materials, thermal management, sensors, energy storage, flexible electronics. However, their superior are confined to one or two dimensions, thus limiting utility interconnects interface materials that require a 3D structure for efficient electron and/or phonon transport. It is conceivable combined CNT-graphene would provide new opportunities realizable...

10.1088/2053-1583/ab41d3 article EN 2D Materials 2019-09-05

Our previous study showed that lycopene reduced the absorption of cholesterol in Caco-2 cells through inhibiting Niemann-Pick C1-Like 1 (NPC1L1) expression. Herein, we aimed to explore whether supplementation can decrease intestine and prevent atherosclerosis progression high-fat diet (HFD)-fed apolipoprotein E knockout (ApoE–/–) mice. Male ApoE–/– mice were fed a with or without for 19 weeks. Supplementation markedly lowered serum total low-density lipoprotein (LDL-C) levels. Additionally,...

10.1021/acs.jafc.1c03160 article EN Journal of Agricultural and Food Chemistry 2021-08-25

Abstract As Moore's law approaches its limit, achieving higher device density necessitates innovative architectures, with monolithic three‐dimensional (M3D) designs emerging as a promising solution. Although numerous top‐down fabrication methods have yielded encouraging results, they often fall short of meeting the demands for large‐scale production, ultimately hindering development more complex, high‐performance devices. Here, novel approach employing all thermally evaporated thin films is...

10.1002/aelm.202400786 article EN cc-by Advanced Electronic Materials 2025-04-02

Abstract The interaction of calf thymus DNA (CT DNA) and water‐soluble manganese corrole, 5,10,15‐tris(4‐carboxyphenyl)corrolatomanganese(III) (Mn III TCPC) has been studied by absorption spectra, fluorescence spectra CD as well viscosity measurements. Results revealed that this corrole binds to CT via an outside groove binding mode with intrinsic constant K b 4.67×10 4 L·mol− 1 . cleavage activities Mn TCPC in the presence various oxidants were also investigated. can cleave supercoiled...

10.1002/cjoc.201300488 article EN Chinese Journal of Chemistry 2013-10-01

The charge-transfer process in transition-metal dichalcogenides (TMDCs) lateral homojunction affects the electron-hole recombination of optoelectronic devices. However, optical properties reflecting has not been observed and studied. In this work, we investigated charge-transfer-induced emission based on monolayer (1L)-bilayer (2L) WSe2 with dozens nanometer region. On one hand, photoluminescence (PL) bilayer from area blue shifts ∼23 ∼31 meV for direct indirect bandgap emission,...

10.1021/acsami.9b06017 article EN ACS Applied Materials & Interfaces 2019-05-13

Four Mn ( III ) corroles that differ in their electronic environments based on meso-substitution by pentafluorophenyl and phenyl groups were synthesized characterized spectroscopic techniques. Utilization of these for styrene oxidation using iodosylbenzene (PhIO) as oxygen source toluene, dichloromethane (DCM), DMF, DMAc, THF DMSO revealed a remarkable effect solvent the catalytic activity. Furthermore, transformation into corresponding V )-oxo corroles, subsequent treatment with also...

10.1142/s1088424614500059 article EN Journal of Porphyrins and Phthalocyanines 2014-02-24

The aqueous polyurethane hybrid dispersion modified by the epoxy resin were synthesized using 1,4-butanediol ( BDO ) and dimethylolpropionic(DMPA) as chain extenders. A kind of automobile interior decoration adhesive was made dispersions. Effects content kinds epoxide on properties dispersions dispersion-cast films such appearance, pot life, viscosity, particle size, molecular mass, hardness, swelling in water, contact angle, strength stress, elongation at break, other mechanical studied. At...

10.1080/01932690802598507 article EN Journal of Dispersion Science and Technology 2009-04-13

Transition-metal dichalcogenides (TMDCs) have attracted a lot of attention due to their electronic, optical, mechanical, and catalytic properties. In addition, TMDCs possess rich redox chemistry that enables the decoration metal nanoparticles directly on surfaces. this paper, MnO2/MoS2 nanocomplexes were obtained by spontaneous reduction KMnO4 with MoS2 QDs as reductive agent. The formed exhibited activated fluorescence MR imaging signal in presence glutathione (GSH). After conjugation an...

10.1039/c9an02239b article EN The Analyst 2019-11-28

Vertically aligned carbon nanotube (VACNT) arrays have been explored as an absorber of thermal-type photodetectors. A long and dense VACNT array absorbs a wide spectral range incident light with high absorption rate, but has thermal mass that results in low response speed. To achieve small mass, shorter less is needed. In addition, the temperature needed to grow VACNTs detrimental functional sensing materials photodetector. The height, density, growth need be optimized working rate this...

10.1088/1361-6528/ac28dc article EN Nanotechnology 2021-09-21

The strain effect on the magnetic response of 2D materials as spintronic devices is always important in actual applications. Due to intriguing electronic and properties two-dimensional (2D) vanadium porphyrin (V-PP) sheets, we studied strain-induced coupling changes V-PP sheets by using density functional theory method found variation characters. calculated results indicate that biaxial can modulate moments central transition metal atoms more importantly induce phase transitions among three...

10.1039/d1cp04597k article EN Physical Chemistry Chemical Physics 2022-01-01

Black phosphorus (BP) or phosphorene, a new superstar among two-dimensional (2D) materials, has sparked huge scientific interest since its discovery in 2014. BP offers unique characteristics including high drug loading efficiency, excellent photodynamic and photothermal properties good biocompatibility. These expand versatility of nanomedicine. Although the outlook seems promising, practical biomedical applications are still at very initial stage especially comparison to other thoroughly...

10.2139/ssrn.3464628 article EN SSRN Electronic Journal 2019-01-01

Two-dimensional (2D) 2H-MoTe2 is an emerging semiconductor with promising electronic and optoelectronic properties. Meanwhile, the in-plane 2D epitaxy mechanism via 1T′ to 2H phase transition allows synthesis of on arbitrary surfaces. Here, we demonstrate two routes for tier-by-tier growth one-step synthesize multitier isolated by atomic layer deposition aluminum oxide (Al2O3). Raman, scanning transmission electron microscopy, other characterizations show that periodic 2H-MoTe2/Al2O3...

10.1021/acsaelm.2c01260 article EN ACS Applied Electronic Materials 2022-11-30

Abstract Two‐dimensional (2D) coplanar heterostructure enables high‐performance optoelectronic devices, such as p–n heterojunctions. However, realizing site‐controllable and shape‐specific 2D heterojunctions composed of two semiconductors with the same crystal orientation still requires development new growth methods. Here, a route to fabricate MoS 2 –MoTe is reported by exploiting properties phase transition atomic rearrangement during 2H‐MoTe . Raman spectroscopy electron microscopy...

10.1002/smll.202308635 article EN Small 2023-12-29

Two-dimensional materials have a wide range of applications in many aspects due to their unique properties. Here we carry out detailed structural search and design the BP 2 using first principles method, find new PMM2 sheet. The analysis phonon dispersive curves shows that 2D is dynamic stable. study molecular dynamics can be stable under high temperature, even at 600 K. Most importantly, when suitable strain applied, structure exhibit other electronic properties such as direct band gap...

10.1088/1674-1056/ac5a40 article EN Chinese Physics B 2022-03-03

This paper reports the effect of padeye offset ratio on keying behaviours and capacity square plate anchors in clay. The investigation is conducted through three-dimensional large deformation finite element analyses using Remeshing Interpolation Technique with Small Strain ABAQUS. rate dependency undrained shear strength soil remoulding are accounted for adopting an extended Tresca model. results from LDFE compared existing analytical solutions, centrifuge test data, numerical results;...

10.2139/ssrn.4616070 preprint EN 2023-01-01

The quasi-one-dimensional material PdTeI exhibits unusual electronic transport properties at ambient pressure. Here, we systematically investigate both the structural and responses of to external pressure, through a combination electrical transport, synchrotron x-ray diffraction (XRD), Raman spectroscopy measurements. charge density wave (CDW) order in is fragile transition temperature TCDW decreases rapidly with application resistivity hump indiscernible when pressure increased 1 GPa. Upon...

10.48550/arxiv.2211.10294 preprint EN cc-by-nc-nd arXiv (Cornell University) 2022-01-01
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