21 Result(s)
within
Feng** Yang
Characterization and Evaluation of Materials
Materials Science, general
-
Article
Methods for the reduction of the micropipe density in SiC single crystals
Micropipes are very harmful for SiC devices. Even one micropipe in the active area can destroy a high-voltage SiC device. Therefore, it is necessary to reduce the density of micropipes in SiC single crystals. ...
-
Article
Do** of Al-catalyzed Vapor-liquid-solid Grown Si Nnanowires
We successfully synthesized high quality single crystal Si nanowires using Al catalyst via vapor-liquid-solid (VLS) mechanism, having diameters ranging from 10 to 200 nm with 10∽20 § of length. Characterizati...
-
Article
Developments of lithium-ion batteries and challenges of LiFePO4 as one promising cathode material
Developments and develo** trends of lithium-ion batteries (LIBs) are summarized first: it is proposed that solid thin film microbatteries and large-scale all-solid-state rechargeable LIBs are the two main de...
-
Article
A novel method for preparation of organic resins reinforced geopolymer composites
A novel method for preparation of alkali-activated metakaolin/granulated blast furnace slag (GBFS)-based geopolymer reinforced by organic resins (OR) was reported. The geopolymer composites by do** an amount...
-
Article
Microstructural evolution in electroformed nickel shaped-charge liners with nano-sized grains undergone deformation at ultrahigh strain rate
Nickel shaped-charge liners with nano-sized grains were prepared by the electroforming technique, and the deformation at ultrahigh strain rate was performed by explosive detonation. The as-formed and post-defo...
-
Article
Restraint of nucleation of SiC polycrystals surrounding the seed during SiC single crystal growth
The nucleation and growth of SiC polycrystals around seed crystals restrain the growth of SiC single crystals in the radial direction fabricated by physical vapor transport method in which the ordinary graphit...
-
Article
Bi2S3-modified TiO2 nanotube arrays: easy fabrication of heterostructure and effective enhancement of photoelectrochemical property
A novel heterostructure of Bi2S3 nanoparticles (NPs) and TiO2 nanotube arrays (NAs) was fabricated by a conventional hydrothermal method. The morphological features and the X-ray diffractogram of the obtained Bi2
-
Article
Solvothermal synthesis of oxygen/nitrogen functionalized graphene-like materials with diversified morphology from different carbon sources and their fluorescence properties
Do** nanocarbon with heteroatoms provides an attractive way to tune their intrinsic properties effectively and exploits advanced applications. We adopted a simple, one-step solvothermal method with sulfonitr...
-
Article
A green method for preparation of CNT/CS/AgNP composites and evaluation of their catalytic performance
In this work, a green method was employed to prepare CNT/CS/AgNP composites, and the catalytic performance of the composites was evaluated. Firstly, carbon nanotubes were modified by chitosan molecules to gene...
-
Article
Phase- and size-controllable synthesis with efficient photocatalytic activity of ZnS nanoparticles
We report a simple solution-based method to synthesize phase- and size-controllable ZnS nanoparticles at low temperature. Cubic ZnS (c-ZnS) and hexagonal ZnS nanoparticles (h-ZnS) were obtained by heating an ...
-
Article
Surface photovoltage inversion and photocatalytic properties of PbI2 microcrystals under sub-bandgap illumination
Surface photovoltage inversion was found in PbI2 microcrystals, manifested as a significant increase in the absolute value of surface barrier height under sub-bandgap illumination. The corresponding surface state...
-
Article
Wool fiber-derived nitrogen-doped porous carbon prepared from molten salt carbonization method for supercapacitor application
Transformation of biomass into nitrogen-doped carbon materials has been considered as effective and affordable route for energy generation and conversion. Wool fiber, as an abundant renewable biomass, contains...
-
Article
A facile room-temperature synthesis of three-dimensional coral-like Ag2S nanostructure with enhanced photocatalytic activity
Morphology is a crucial factor in determining the chemical, optical, and electrical properties of nanoscale materials. In this work, we utilized a facile room-temperature deposition method to synthesize three-...
-
Article
Full-color carbon dots with multiple red-emission tuning: on/off sensors, in vitro and in vivo multicolor bioimaging
Carbon-based luminescent materials have attracted much attention of many researchers in recent years for its better optical properties and biological applications. In this paper, we report the full-color CDs (...
-
Article
Effect of amorphous carbon on the tensile behavior of polyacrylonitrile (PAN)-based carbon fibers
The effects of the microstructure evolution of amorphous carbon on the tensile behavior of polyacrylonitrile (PAN)-based carbon fibers were investigated. The microstructure as a function of heat treatment temp...
-
Article
A strong multilayered transparent wood with natural wood color and texture
This experiment aims to study the performance of multilayered transparent wood (MLTW) under the condition of partial delignification, including the effect of lamination structure between layers and delignifica...
-
Article
A wood textile fiber made from natural wood
Synthetic textile fibers have always had bright application prospects in the textile field due to their good physical properties, but their development has been restricted by the shortage of petrochemical reso...
-
Article
Graphene–MCN pn-junction for ultrafast flexible ultraviolet detector
We venture to design and fabricate thermosensitive flexible ultraviolet (UV) detector, and the response time of the MCN–graphene composite is decreased 7500 times, while the quantum efficiency of MCN is increa...
-
Article
Chitosan-derived graphitic carbon@Fe3C as anode materials for lithium ion battery
Chitosan-based carbon materials have attracted great attention in electrochemical energy storage. Introducing iron metal or iron compounds into carbon materials favors to boost their electrochemical performanc...
-
Article
Treatment with Na2SO3 alkaline reductant to restore luminescence intensity and improve the moisture resistance of deteriorated Mn4+-doped fluoride phosphors
Enhancing the moisture resistance of Mn4+-doped fluoride phosphors is crucial for solid-state lighting (SSL) and liquid crystal display (LCD). Herein, the deteriorated K2AF6:Mn4+ (A = Ti, Si) phosphors were resto...
