A5103398081- ZnO doping and properties
- Ga2O3 and related materials
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Wireless Networks and Protocols
- Cognitive Radio Networks and Spectrum Sensing
- Cooperative Communication and Network Coding
- Millimeter-Wave Propagation and Modeling
- Chalcogenide Semiconductor Thin Films
- GaN-based semiconductor devices and materials
- Luminescence Properties of Advanced Materials
- Multiferroics and related materials
- Indoor and Outdoor Localization Technologies
- Crystallization and Solubility Studies
- Carbon and Quantum Dots Applications
- X-ray Diffraction in Crystallography
- Electronic and Structural Properties of Oxides
- Blind Source Separation Techniques
- Advanced MIMO Systems Optimization
- Advanced Sensor and Energy Harvesting Materials
- Soil Carbon and Nitrogen Dynamics
- Agricultural Science and Fertilization
- Chemical and Physical Properties in Aqueous Solutions
Jiangsu University
2010-2025
Jilin Normal University
2008-2024
Tangshan College
2023
Chongqing Normal University
2019
Materials Science & Engineering
2013
Jilin University
2013
Institute of Chemistry
2013
UNSW Sydney
2013
Linköping University
2008-2011
Chinese Academy of Sciences
1999-2010
We report the correlated d0 ferromagnetism and photoluminescence in undoped single-crystalline ZnO nanowires synthesized by using a vapor transport method. systematically tune oxygen deficiency from 4% to 20% adjusting growth conditions, i.e., selecting different catalyst (Au or Ag) varying temperature. Our study suggests that vacancies induce characteristic significantly boost room-temperature ferromagnetism. Such with tunable magnetic optical properties are promising find applications...
We report on the photoluminescence in perfectly aligned Eu-doped ZnO nanowire arrays that are prepared sapphire substrates using a vapor transport method with doped sol–gel precursor powder as source. Under UV light excitation, Eu3+-related red emission is observed arrays. By carrying out systematic temperature-dependent and time-resolved experiments, we identify defect-mediated energy transfer pathway from host to Eu3+ ions. The time increases ∼9 ∼130 ps after nanowires annealed oxygen...
Abstract Spatial reuse in a mesh network can allow multiple communications to proceed simultaneously, hence proportionally improve the overall throughput. To maximize spatial reuse, MAC protocol must enable simultaneous transmitters maintain minimal separation distance that is sufficient avoid interference. This paper demonstrates physical carrier sensing enhanced with tunable threshold effective at avoiding interference 802.11 networks without requiring use of virtual sensing. We present an...
Ce-doped ZnO nanorods were prepared under mild hydrothermal condition. The microstructures, morphologies and optical properties of as-synthesized investigated by x-ray diffraction (XRD), transmission electron microscope (TEM), photoelectron spectroscopy (XPS), photoluminescence (PL), Raman spectroscopy. XRD XPS results demonstrated that Ce ions successfully incorporated into the lattice position Zn in ZnO. TEM images illustrated average diameter was 8 nm. PL measurements revealed both...
Zn(0.97)Fe(0.03)O nanoparticles were synthesized by the sol-gel method. X-ray diffraction (XRD) and transmission electron microscope (TEM) analysis revealed that samples had pure ZnO wurtzite structure Fe ions well incorporated into crystal lattice. photoelectron spectroscopy (XPS) showed both Fe(2+) Fe(3+) existed in Zn(0.97)Fe(0.03)O. The result of x-ray absorption near-edge (XANES) further testified took place Zn sites our samples. Magnetic measurements indicated was ferromagnetic at room...
Photoelectrochemical nitrate reduction has been a promising method for ammonia (NH3) production under normal temperatures and neutral conditions. However, hydrogenation is key process in the selective of NH3 during reduction; therefore, inducing active hydrogen inhibiting are noteworthy problem. In this study, BiVO4/CuS (BVO/CS) heterostructure constructed photoelectrochemical reaction (PEC NIRR). The introduction CuS optimizes electron-transfer ability enhances surface catalytic kinetics...
Semiconductors are breaking new ground in surface enhanced Raman scattering (SERS) field, but distressed by hard to match noble metal substrates due their limited chemical enhancement deriving from...
60 GHz is considered the most promising technology to deliver gigabit wireless for indoor communications. We propose integrate radio with existing Wi-Fi in 2.4/5 band take advantage of complementary nature these different bands. This integration presents an opportunity provide a unified both Wireless Personal Area Networks (WPAN) and Local (WLAN), thus further reinforcing convergence that already underway widespread adoption technology. Many open research questions remain make this solution...
Spectrum sensing is a key technology in cognitive radio. Result of cooperative spectrum depends on credibility local sensing. But there lack considering it current schemes. In this paper, we think that different nodespsila SNRs lead to reliability each nodepsilas results. Firstly, analyze the effects And propose algorithm based SNR comparison fusion center for Numerical analysis and computer simulation suggest scheme greatly increase probability detection reduce node number participate...