A5041073545- Luminescence Properties of Advanced Materials
- Radiation Detection and Scintillator Technologies
- Perovskite Materials and Applications
- X-ray Diffraction in Crystallography
- Nuclear materials and radiation effects
- Crystallization and Solubility Studies
- Inorganic Fluorides and Related Compounds
- Advanced Photocatalysis Techniques
- Luminescence and Fluorescent Materials
- Ga2O3 and related materials
- Glass properties and applications
- Gas Sensing Nanomaterials and Sensors
- Electrocatalysts for Energy Conversion
- Advanced Condensed Matter Physics
- Crystal Structures and Properties
- Lanthanide and Transition Metal Complexes
- Advanced battery technologies research
- Adsorption and biosorption for pollutant removal
- Metal-Organic Frameworks: Synthesis and Applications
- Thermal Expansion and Ionic Conductivity
- Coal and Its By-products
- Microwave Dielectric Ceramics Synthesis
- Silicon Nanostructures and Photoluminescence
- Boron and Carbon Nanomaterials Research
- Photochromic and Fluorescence Chemistry
Foshan University
2021-2025
Sun Yat-sen University
2017-2021
State Key Laboratory of Optoelectronic Materials and Technology
2017
Guangzhou University
2013
Hefei National Center for Physical Sciences at Nanoscale
2008
University of Science and Technology of China
2007-2008
Hefei University of Technology
2007-2008
Institute of Physics
1981
Abstract Optical multiplexing based on luminescent materials with tunable color/lifetime has potential applications in information storage and security. However, the available reported so far still suffer from several drawbacks of low efficiency or poor stability, thus restraining their further applications. Herein, we demonstrate a strategy to develop efficient stable lanthanide coordination polymers (LCPs) luminescence as new option for optical multiplexing. Their multicolor emission green...
Abstract Near‐infrared (NIR) phosphor‐converted light‐emitting diodes (pc‐LEDs) have sparked tremendous interest in NIR spectroscopy. However, conventional pc‐LEDs with a narrow full‐width at half‐maximum (FWHM) and single‐emission block the detection scope accuracy for spectroscopy analysis. Herein, multicenter strategy is developed preparation of blue‐light‐excitable Mg 2 SnO 4 :Cr 3+ ,Ni 2+ phosphors dual‐emission (λ em = 830/1480 nm, total FWHM 532 nm). Benefiting from unique...
A single-phase intense white-light-emission is achieved in LuNbO<sub>4</sub>:Dy<sup>3+</sup> phosphors.
Development of efficient, stable, and robust bifunctional electrodes is important for the practical industrial application water electrolysis technologies renewable hydrogen production. Here, we report fabrication heterostructured Ni(OH)2 nanosheets/Ni3S2 nanoneedles grown on Ni foam, Ni(OH)2/Ni3S2/NF, as a highly active mechanically strong electrode overall splitting. The results indicate that Ni(OH)2/Ni3S2 interfaces are reactive center oxygen evolution reaction (OER) (HER). redistribution...
Knowledge of site occupation activators in phosphors is essential importance for understanding and tailoring their luminescence properties by modifying the host composition. Relative preference Eu2+ two distinct types alkaline earth (AE) sites Ba1.9995–xSrxEu0.0005SiO4 (x = 0–1.9) investigated based on photoluminescence measurements at low temperature. We found that prefers to be 9-coordinated AE2 x 0, 0.5, 1.0, while 1.5 1.9, it also occupies 10-coordinated AE1 with comparable preference,...
Materials with near-infrared (NIR) persistent luminescence (PersL) and NIR-to-NIR photostimulated (PSL) properties are attractive platforms for photonic energy harvesting release. In this work, we develop Mg2SnO4:Cr as a broadband NIR PersL PSL material (luminescence maxima at ∼800 nm) reveal the origin of properties. The has an inverse spinel structure Mg2+ Sn4+ disorder Wyckoff 16d site based on Rietveld refinement. Cr K-edge X-ray absorption near-edge (XANES) spectra uncover that doped...
Achieving phosphor-converted light-emitting diodes (pc-LEDs) for portable NIR spectroscopy applications has evoked enormous demand high-efficiency broadband NIR-II (1,000–1,700 nm) phosphors. Herein, a series of Li-alloyed (Li/Mg)O:Ni2+ phosphors with tunable emission is prepared. By alloying Li-ions into MgO:Ni2+, we break the uniform coordination environment Ni2+ emitters by substitutional disorder and induce many crystallographically equivalent emitters. This leads to large spectral...
A rational design of WO 3− x /ZnFe 2 O 4− broken-gap heterojunction achieved higher charge carrier separation, light-harvesting ability, and good surface reaction, as an all-in-one photocatalyst for H generation.
Two cases are investigated. In the first case electron distribution is assumed to have a loss-cone feature. It found that plasma can amplify electromagnetic waves near cyclotron frequency, as expected. However, growth rate significantly larger than used in an approximate calculation which slightly different physical model was considered. The present discussion restricted fast extraordinary- mode radiation. One of important conclusions that, due combined relativistic and effects, cutoff...
A series of Ce3+-doped (Ca,Sr)2Al2SiO7 phosphors with different Ce3+ and Ca2+/Sr2+ concentrations were prepared by a high temperature solid-state reaction technique. To get insight into the structure–luminescence relationship, impact incorporation Sr2+ on structure was first investigated via Rietveld refinement quality X-ray diffraction (XRD) data, then VUV–UV excitation UV–vis emission spectra (Ca,Sr)2Al2SiO7:Ce3+ collected at low temperature. The results reveal that crystal evolution has...
A series of Ln-doped KSrPO4 (Ln = Ce3+, Eu3+, Eu2+, Pr3+) phosphors are prepared through a high-temperature solid-state method. The compound is confirmed to possess β-K2SO4 structure with the Pnma group by Rietveld refinement, and temperature-dependent lattice parameters investigated powder X-ray diffraction results at different temperatures. Ce3+ Eu3+ ions introduced probe crystal field strength (CFS) lanthanide site symmetry using VUV-UV-vis spectroscopy. luminescence properties KSrPO4:...
Ca<sub>8</sub>Mg<sub>3</sub>Al<sub>2</sub>Si<sub>7</sub>O<sub>28</sub>:Ce<sup>3+</sup>,Eu<sup>2+</sup> phosphors with a melilite structure are designed and prepared for applications in optical thermometry. Their emission colours tunable due to the energy transfer thermal quenching of Ce<sup>3+</sup> Eu<sup>2+</sup>.
Due to the change of band gap, photoluminescence and persistent luminescence performances Ce 3+ in Sr 2 (Ga,Al) SiO 7 have been optimized by regulation Al /Ga .