A5030031692- ZnO doping and properties
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Quantum Dots Synthesis And Properties
- Molecular Junctions and Nanostructures
- Graphene research and applications
- Concrete and Cement Materials Research
- Magnesium Oxide Properties and Applications
- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Ammonia Synthesis and Nitrogen Reduction
- Electronic and Structural Properties of Oxides
- Advanced Materials and Mechanics
- Perovskite Materials and Applications
- Chemical Synthesis and Characterization
- Semiconductor materials and devices
- Advancements in Battery Materials
- MXene and MAX Phase Materials
- Materials Engineering and Processing
- Advanced battery technologies research
- 2D Materials and Applications
- Advanced Memory and Neural Computing
- Chalcogenide Semiconductor Thin Films
- Advanced Battery Materials and Technologies
Anhui Normal University
2025
Nanjing Tech University
2020-2024
Beijing University of Chemical Technology
2018-2023
Zhejiang University of Science and Technology
2015-2023
State Key Laboratory of New Ceramics and Fine Processing
2016-2018
Tsinghua University
2016-2018
University of Science and Technology of China
2003-2017
Hefei National Center for Physical Sciences at Nanoscale
2004-2014
Microscale (United States)
2014
Shandong Normal University
2012
Bismuth (Bi) exhibits a high theoretical capacity, excellent electrical conductivity properties, and remarkable interlayer spacing, making it an ideal electrode material for supercapacitors. However, during the charge discharge processes, Bi is prone to volume expansion pulverization, resulting in decline capacitance. Deposition of nonmetal on its surface considered effective way modulate morphology electronic structure. Herein, we employed chemical vapor deposition technique fabricate...
Aligned high-density ZnO nanorods were successfully synthesized on porous aluminum oxide (PAO) template. The growth process involves carbonthermal reduction of as a Zn vapor source and nucleation the PAO template without metal catalysts. Field-emission scanning electron microscope images revealed that have uniform length distributions hexagon end planes, intense c-axis was also confirmed by X-ray diffraction. Strong ultraviolet emission at 380 nm weak green band 520 room-temperature...
Vertically well-aligned ZnO nanorod arrays with three kinds of tip morphology—abruptly sharpened, tapered and plane—have been controllably fabricated wafer size uniformity by vapor phase transport condensation. Except that the morphology is distinctly different, all these nanorods are single crystalline, growing along their wurtzite ⟨0001⟩ axis, similar diameters, lengths densities. The field emission properties comparatively investigated found to be strongly affected morphology. A abruptly...
It has long been under debate whether the electron transport performance of graphene could be enhanced by possible occurrence van Hove singularities in grain boundaries. Here, we provide direct experimental evidence to confirm existence singularity states close Fermi energy certain ordered boundaries using scanning tunneling microscopy. The intrinsic atomic and electronic structures two boundaries, one with alternative pentagon heptagon rings other pair octagon rings, are determined. is...
Abstract As an emerging earth‐abundant light harvesting material, antimony selenosulfide (Sb 2 (S,Se) 3 ) has received tremendous attention for photovoltaics. Manipulating the carrier separation and recombination processes is critical to achieve high device efficiency. Compared conventional planar heterojunction (PHJ), bulk (BHJ) configuration affords great potential enable efficient charge extraction. In this work, BHJ Sb solar cells are constructed based on CdS nanorod arrays (NRAs)....
Well-aligned ZnO nanorod arrays were synthesized by thermal evaporation of powder on thin films. The nanorods are almost the same length 5.5μm and well-oriented perpendicular to substrates. time-integrated time-resolved photoluminescence spectra revealed existence laser action with excitation threshold 130μJ∕cm2 emission lifetime less than 30 ps. At fluence a little below threshold, decay fits well biexponential function fast component (∼80ps) slower (∼360ps).
Flexible and durable electrode materials are of vital importance to developing advanced energy storage devices for emerging wearable electronics. Most current strategies adopt chemical modifications or binders improve the interface interaction between flexible components, which inevitably lowers cyclic lifetime increases production cost. Here, we report an in situ, scalable sol–gel method fabricate free-standing TiO2/superaligned carbon nanotube (SACNT) hybrid films as anodes Li-ion...
We describe a new synthetic approach to fabricate Ni/Cu nanocable arrays by co-depositing nickel and copper atoms into the pores of anodic alumina membranes Ni nanotube selectively etching Cu cores from arrays. The formation Ni-shelled nanocables is attributed ions adsorbed on pore walls chemical complexation through hydroxyl groups. By varying electrodepositon parameters in this technique, we can control lengths nanotubes, shell thickness nanocables, wall surface morphology nanotubes.
Yes or no? Mayenite without the clathrated oxygen can be classified as an inorganic electride based on combined charge-density (see picture, A) and electron-localization-function (ELF) analysis (B). Ionic chemical bonds are found to form between extra electrons positively charged crystal framework in this material.
Novel ZnO cone arrays with controllable morphologies have been synthesized on silicon (100) substrates by thermal evaporation of metal Zn powder at a low temperature 570 degrees C without catalyst. Clear structure evolutions were observed using scanning electron microscopy: well-aligned nanocones, double-cones growing head cones attached stem cones, and straight hexagonal pillar obtained as the distance between source was increased. X-ray diffraction shows that all grow along c-axis. Raman...
The atomic thickness and flatness allow properties of 2D semiconductors to be modulated with influence from the substrate. Reversible modulation these requires an “active,” reconfigurable substrate, i.e., a substrate switchable functionalities that interacts strongly overlayer. In this work, photoluminescence (PL) monolayer molybdenum disulfide (MoS 2 ) is by interfacing it phase transition material, vanadium dioxide (VO ). MoS PL intensity enhanced factor up three when underlying VO...
Photo-driven actuators are highly desirable in various smart systems owing to the advantages of wireless control and possible actuation by solar energy.
Nanocomposites that combine porous materials and a continuous conductive skeleton as sulfur host can improve the performance of lithium–sulfur (Li-S) batteries. Herein, carbon nanotubes (CNTs) anchoring small-size (~40 nm) N-doped polyhedrons (S-NCPs/CNTs) are designed synthesized via annealing precursor zeolitic imidazolate framework-8 grown in situ on CNTs (ZIF-8/CNTs). In nanocomposite, S-NCPs serve an efficient for immobilizing polysulfides through physical adsorption chemical bonding,...
We demonstrate a preferential nucleation, epitaxial growth, and self-attraction of crystal orientation-ordered ZnO nanorod bundles on (0001) plane single-crystal microcones.
High-density, well aligned, -oriented wurtzite ZnO nanorod arrays with significantly different tip shapes were controllably fabricated by evaporating zinc powders at temperatures varying from 450 to 600 °C. It is found that the shape depends not only on substrate but also direction relative auxiliary gas flow, and radius of curvature these tips can be less than 2 nm. These nanorods exhibit good rectification characteristics in conductive atomic force microscopy (CAFM) measurements; current...
Lanthanide niobate is an excellent nonlinear optical and high dielectric constant material. However, development application of these novel properties depend on understanding its structural stability. In this work, Raman luminescence spectra GdNbO4 with different Eu3+ ions doping concentrations under pressure low temperature were obtained. The evolution indicated that irreversible phase transition from monoclinic to M′-fergusonite occurred at 6.2 GPa, the was completed about 13.1 GPa. An...
Slow or noticeably delayed wound healing is frequently intimately linked to bacterial infection and excessive reactive oxygen species (ROS), while the inappropriate usage of antibiotics fuels rise resistance. The innovative materials are desperately needed eliminate bacteria effectively accelerate healing. In this work, a curcumin-loaded silver-based metal-organic framework (Cur/Ag-MOF) composite nanomaterial was developed, which exhibited good antimicrobial activity, biocompatibility, drug...