A5084120490- Luminescence Properties of Advanced Materials
- Perovskite Materials and Applications
- Radiation Detection and Scintillator Technologies
- Advanced Photocatalysis Techniques
- Luminescence and Fluorescent Materials
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- Inorganic Chemistry and Materials
- Microwave Dielectric Ceramics Synthesis
- Ga2O3 and related materials
- Solid-state spectroscopy and crystallography
- Nuclear materials and radiation effects
- bioluminescence and chemiluminescence research
- Topological Materials and Phenomena
- 2D Materials and Applications
- Nanomaterials for catalytic reactions
- Glass properties and applications
- Crystal Structures and Properties
- Heusler alloys: electronic and magnetic properties
- GaN-based semiconductor devices and materials
- Atmospheric Ozone and Climate
- Semiconductor materials and devices
- Nanoplatforms for cancer theranostics
- Advanced Condensed Matter Physics
- Carbon and Quantum Dots Applications
Longyan University
2018-2024
Chinese Academy of Sciences
2024
Fuzhou University
2021-2022
Lanzhou University
2013-2017
Lanzhou City University
2015-2016
A novel blue-emitting phosphor Na<sub>3</sub>Sc<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>:Eu<sup>2+</sup>was successfully synthesized by solid-state reaction.
A series of Ca2YZr2Al3O12:Eu3+ (CYZA) phosphors were successfully synthesized through conventional solid-state method. The electronic structure and their photoluminescence or cathodoluminescence properties investigated in detail. Under n-UV excitation, the CYZA:Eu3+ exhibits more intense red emission than commercial Y2O3:Eu3+ phosphor. WLED lamp with good color render index was obtained by fabricating phosphor BAM:Eu2+ LuAG:Ce3+ phosphors. also high current saturation resistance under low...
To overcome the problem that Bi3+-activated phosphors suffer from, it is an urgent need to realize narrow-band light emission of phosphors, which not only improves their luminescence characteristics, but also increases competitiveness with rare earth-activated commercial phosphors. In our work, a novel cyan phosphor has been achieved in highly condensed and symmetrical crystal structure Ca3Lu2Ge3O12, its full width half-maximum (fwhm) band reaches 47 nm. The result indicates Ca3Lu2Ge3O12...
A novel garnet phosphor, Ca<sub>2</sub>LuHf<sub>2</sub>(AlO<sub>4</sub>)<sub>3</sub>:Ce<sup>3+</sup>(CLHA:Ce<sup>3+</sup>), was successfully designed and synthesized using a solid-state method.
A series of single-component Ce3+, Li+, Mn2+ ions codoped color-tunable CaSr2Al2O6 phosphors were synthesized by a high-temperature solid-state reaction, and the photoluminescence properties as well energy transfer mechanism from Ce3+ to have been investigated in detail. The activated strong absorption range 250–420 nm can give blue emission centered at about 460 nm. When are codoped, CaSr2Al2O6:Ce3+, be tuned red through adjusting doping concentration ions, under irradiation 358 is...
A series of SrSiAl2O3N2:Eu(2+) (0.005 ≤x≤ 0.05) phosphors were successfully synthesized through a pressureless, facile, and efficient solid state route. The crystal structure, band their photoluminescence cathodoluminescence properties investigated in detail. exhibit rod shape morphology with uniform Eu(2+) distribution. Under n-UV excitation the emission spectra shift from 477 to 497 nm an increase concentration. concentration quenching mechanism was dominated by dipole-dipole interaction....
A series of quaternary nitride solid solutions with a general formula Sr1−xCaxYSi4N7:Eu2+ (1 atom%) were synthesized by the carbothermal reduction and nitridation (CRN) method. The XRD patterns confirm formation solution (0 ≤ x 0.5). With an increase in x, emission spectra shift from 540 nm to 564 under n-UV excitation. In addition, temperature dependence PL intensity was investigated. thermal stability is comparable that commercial (Ba,Sr)2SiO4:Eu2+ phosphor. All results indicate can be...
We studied the crystal structure of Y<sub>4</sub>Si<sub>2</sub>O<sub>7</sub>N<sub>2</sub> and relationship between luminescence properties.
Abstract Herein, a novel Bi 3+ ‐activated Ca 3 Y 2 Ge O 12 (CYGO) narrow‐band cyan‐emitting phosphor was synthesized. It can be excited from 320–420 nm, and the strongest excitation peak is located at 370 which suitable for current near‐ultraviolet (NUV) chips perfectly. The full width half maximum 52 nm. By analyzing crystal structure of sample, we infer that ions replace site to form highly symmetrical BiO 6 octahedron. time‐resolved photoluminescence (TRPL) spectra CYGO: reveal only...
For solving the problem that Eu3+-activated phosphors cannot be well excited by near UV-LED chips, charge transfer band (CTB) of Eu3+-N3– in α-M3B2N4 (M = Ca, Sr) has been investigated this work. Compared with sharp excitation peaks due to f–f transitions Eu3+, is broad and Sr):Eu3+ centered at 370 or 350 nm lies near-UV, implying a promising excitation. The electron crystal structures analyzed detailed, indicating they all crystallize cubic phase space group (Im3̅m) have similar band-gap...
A full spectrum LED lamp bead can be obtained using Rb 2 ZrSi O 7 :Eu 2+ packaging.
Bi3+-activated phosphors have demonstrated great values in solid-state lighting, biomedicine, and detectors. Low quantum efficiency unsatisfactory thermal stability are the main reasons that limit practical application of phosphors. In this study, a high-efficiency stable orange-light-emitting phosphor induced by D-band emission, Ba2LuGaO5:Bi3+, was successfully synthesized selecting gallate with highly rigid structure appropriate cation sites. Under excitation near-ultraviolet light,...