A5007248108- Advanced Photocatalysis Techniques
- Organic Electronics and Photovoltaics
- Nuclear Materials and Properties
- Gas Sensing Nanomaterials and Sensors
- MXene and MAX Phase Materials
- Fusion materials and technologies
- Catalysis for Biomass Conversion
- Thermochemical Biomass Conversion Processes
- 2D Materials and Applications
- Catalysis and Hydrodesulfurization Studies
- Copper-based nanomaterials and applications
- Inorganic Chemistry and Materials
- GaN-based semiconductor devices and materials
- Hydrogen Storage and Materials
- Analytical Chemistry and Sensors
- Metal and Thin Film Mechanics
- Molecular Junctions and Nanostructures
- Ga2O3 and related materials
- Graphene research and applications
- Advanced Chemical Physics Studies
- Electrochemical Analysis and Applications
- Conducting polymers and applications
- Thermal properties of materials
- Perovskite Materials and Applications
- ZnO doping and properties
Jiangxi Science and Technology Normal University
2022-2023
Jiangsu University
2013-2022
Longdong University
2020-2022
Institute of Modern Physics
2016-2020
Academia Sinica
2020
Lanzhou City University
2018-2020
Northwest Normal University
2016-2019
Chinese Academy of Sciences
2016-2019
National Space Science Center
2019
Washington State University
2016
We aim to understand the origins of intrinsic charge carrier traps in organic and polymeric semiconductor materials from a physical chemistry perspective. In crystalline semiconductors, we point out some inadequacies description using language concepts developed for inorganic semiconductors. π-conjugated suggest presence two-tier electronic energy landscape, bimodal majority landscape due two dominant structural motifs minority charged defects. The results combination amorphous domains...
Petacene is one of the most promising organic semiconductors for thin-film transistors. Transport measurements in past have established presence shallow traps but their origins remained a mystery. Here we show that vapor-deposited crystalline pentacene thin films are due to local defects resulting from sliding molecules along long molecular axis, while two-dimensional packing maintained. Electronic structural calculation confirms these shallow-charge with energies ⩽100meV above (below)...
Bi<sub>2</sub>S<sub>3</sub> was synthesized on the surface of g-C<sub>3</sub>N<sub>4</sub> to narrow band gap catalyst for a visible-light response.
Scanning tunneling microscopy with high impedance has been used to image the growth of pentacene thin films on Au(111). Instead herringbone structure in bulk solid, molecules these form a cofacial, π-stacked crystalline phase their molecular planes parallel surface. The this is attributed formation close-packed, monolayer which seeds multilayer film.
Stabilization of excess electrons is studied at crystalline ice−metal interfaces by femtosecond time-resolved two-photon photoelectron spectroscopy and ab initio calculations. Following optical excitation into delocalized image potential states, localize pre-existing defects which are located the ice−vacuum interface. Remarkably, stabilization these trapped monitored continuously from femtoseconds up to minutes. By first principle calculations we identify defect structures, that support in...
Abstract A coupled system for the photocatalytic degradation of rhodamine B (RhB) was realized by a CdS/SL g‐C 3 N 4 (SL = single‐layer graphitic carbon nitride) photocatalyst under visible‐light irradiation. SL fabricated ultrasonic exfoliation bulk . Two series and CdS/g‐C photocatalysts with different CdS content were prepared hydrothermal process. The characterized Fourier transform infrared (FTIR) spectroscopy, X‐ray diffraction (XRD), UV/Vis diffuse reflection spectroscopy (DRS),...
A novel pathway for producing high-density cycloalkanes jet fuels from diverse lignocellulosic biomasses and determining the optimal biomass source <italic>via</italic> catalytic microwave-induced pyrolysis hydrogenation processes.
Pentacene, as well other polyacenes, is known to adsorb on metal surfaces in a lying-down geometry, that is, with the molecular plane parallel surface. Here we show using scanning tunneling microscopy pentacene monolayer seeds growth of multilayer polycrystalline film layer-by-layer fashion, planes substrate Growth submonolayer region characterized by large number ordered structures coverage increases. The saturated structure remains approximately same throughout coverages studied....
Recently, the structural disorder-induced topological phase transitions in periodic systems have attracted much attention. However, aperiodic such as quasicrystalline systems, interplay between disorder and band topology is still unclear. In this work, we investigate effects of on a quantum spin Hall insulator higher-order two-dimensional Amman-Beenker tiling lattice, respectively. We demonstrate that can induce transition from normal to an amorphous phase, which confirmed by bulk gap...
Two-photon photoemission (2PPE) spectroscopy is used to examine the excited electronic structure and dynamics at polyacene/Au(111) interfaces. Image resonances are observed in all cases (benzene, naphthalene, anthrathene, tetracene, pentacene), as evidenced by free-electron like dispersions surface plane dependences of these on adsorption nonane overlayers. The binding energies lifetimes similar for five Adsorption top films pushes electron density image resonance away from metal surface,...
A composite photocatalyst based on silver carbonate (Ag2CO3) loaded activated carbon (AC) was prepared by ion-exchange deposition method. The obtained characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), photoelectron (XPS), UV/Vis diffuse reflection (DRS), N2 adsorption–desorption measurements and transient photocurrent measurements. removal efficiency of Ag2CO3/AC including adsorption photodegradation studied for degrading...
Introducing plasmonic metals into semiconductor materials has been proven to be an attractive strategy for enhancing photocatalytic activity in the visible region. In this work, a novel and efficient Ag/Ag 2 WO 4 /g‐C 3 N (AACN) ternary photocatalyst was successfully synthesized using facile one‐step situ hydrothermal method. The composition, structure, morphology optical absorption properties of AACN were investigated X‐ray diffraction, Fourier transform infrared spectroscopy, scanning...
Hierarchical Ni(OH)2 microstructures with sizes of several micrometers have been synthesized through a polymer mediated self-assembly route. The hierarchical are built sheet-like building blocks, which further composed "side to side" stacking tiny units. influence various experimental parameters on the microstructure was investigated. It is believed that polymer, poly(sodium-4-styrene sulfonate), selectively bonded surface clusters mediates formation microstructures. In addition, chemical...
The beryllide Be12Ti is considered to be the most promising candidate material for advanced plasma facing materials in future fusion reactors because of its excellent performance. In this work, first-principles calculations were conducted gain insight into retention and diffusion behavior transmutation H He atoms Be12Ti. solution energy migration single impurity H/He computed study their diffusion. Among seven stable interstitial sites, preferentially occupy octahedral site, I oct, whereas...
The stability and migration behaviors of impurity H He atoms have been investigated by using first principles calculations in Ti<sub>3</sub>AlC<sub>2</sub>.