A5085297045- Luminescence Properties of Advanced Materials
- Luminescence and Fluorescent Materials
- Perovskite Materials and Applications
- Glass properties and applications
- Solid State Laser Technologies
- Inorganic Chemistry and Materials
- Radiation Detection and Scintillator Technologies
- Advanced Photocatalysis Techniques
- Microwave Dielectric Ceramics Synthesis
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- Monoclonal and Polyclonal Antibodies Research
- bioluminescence and chemiluminescence research
- Nanoplatforms for cancer theranostics
- Quantum Dots Synthesis And Properties
- Advanced Memory and Neural Computing
- thermodynamics and calorimetric analyses
- Inorganic Fluorides and Related Compounds
- Optical properties and cooling technologies in crystalline materials
- Environmental Changes in China
- Remote Sensing and Land Use
- Nanofabrication and Lithography Techniques
- Advanced Biosensing Techniques and Applications
- Neuroscience and Neural Engineering
- Viral Infectious Diseases and Gene Expression in Insects
Inner Mongolia Normal University
2013-2025
National University of Mongolia
2022
Changchun Institute of Optics, Fine Mechanics and Physics
2004-2008
Chinese Academy of Sciences
2004-2008
University of Chinese Academy of Sciences
2005
Y3 Al5 O12 :Ce3+ (YAG:Ce3+ ) transparent ceramic phosphors (TCPs) are regarded as the most promising luminescent converter for laser-driven (LD) lighting. High-quality YAG:Ce3+ TCPs still urgent high efficiency LD lighting devices. in a vacuum ambience by using nano-sized raw materials prepared. Controlling defects adding MgO and SiO2 simultaneously enables transmittance nearly 80%. After annealing air furthermore, luminous is enhanced greatly from 106 to 223 lm W-1 , which best result...
Er3+-doped ZnO nanocrystals with hexagonal wurtzite structure were prepared by addition of LiOH to Zn−O−Er precursors in ethanol. The well-known green hot band from the 2H11/2 → 4I15/2 transition 520 − 540 nm region and Stokes emissions investigated. And blue, green, red upconversion observed annealed samples under near-infrared light (808 nm) excitation. emission intensity ratio hypersensitive 2H11/ 2 4S3/2 (I530nm/I550nm) sample at 400 °C is different that 700 °C, which attributed...
Abstract Mechanoluminescent (ML) materials are promising for applications in structural health monitoring, biomedicine, stress sensing, and distribution visualization due to their ability emit light without external circuits. However, current ML face challenges, including limited luminescent colors, high raw material costs, toxicity, lack of emissions the invisible spectrum. To overcome these Ca 2 P O 7 (CPO) is selected as matrix its excellent piezoelectric properties, low cost,...
Synthesizing phosphors with high performance is still a necessary work for phosphor-converted white light-emitting diodes (W-LEDs). In this paper, three series of CaAlSiN3:Eu2+ (denoted as CASN:Eu2+) using Eu2O3, EuN and EuB6 raw materials respectively are fabricated by under the alloy precursor normal pressure nitridation synthesis condition. We demonstrate that CASN:Eu2+ nano-EuB6 material shows higher emission intensity than others, which ascribed to increment Eu2+ ionic content entering...
Yellow-light-emitting phosphor SrSi2O2N2:Eu2+ was synthesized by using a simple solid-state reaction method with Sr2SiO4:Eu2+ as the precursor. This found to be well-crystallized utilizing XRD. Luminescence and afterglow properties of it have been systematically investigated. After 15 minutes excitation an unfiltered xenon arc lamp at 1000 lux, its can seen for more than 2.5 h in limit light perception dark-adapted human eyes (0.32 mcd/m2). Furthermore, temperature-dependent long-lasting...
Y2.985-xCe0.015CaxAl5-xSixO12 (YAG:1.5%Ce+xCS) ceramic phosphors (CPs) were synthesized by a vacuum sintering method. The addition of CaCO3 and SiO2 significantly reduces the temperature CPs. effects Ca2+ - Si4+ on luminescent properties microstructures YAG:Ce CPs are discussed. cannot be completely dissolved in when x reaches to 0.2. Combining results XRD, photoluminescence, cathodoluminescence spectra proved existence Ca2Al2SiO7. performances titled high-power white laser diodes lighting...
LEDs for plant lighting have attracted wide attention and phosphors with good stability deep-red emission are urgently needed. Novel Cr3+ Dy3+ co-doped Gd3Al4GaO12 garnet (GAGG) were successfully prepared through a conventional solid-state reaction. Using blue LEDs, broadband at 650−850 nm was obtained due to the 4T2 → 4A2 transition. When concentration fixed 0.1 mol, crystal structure did not change an increase in doping concentration. The luminous intensity of optimized GAGG:0.1Cr3+,...
In this paper, we propose one-step and two-step process under atmospheric pressure condition for synthesizing the CaAlSiN3:Eu2+ red phosphors by using nano-sized EuB6 Eu2O3 as raw doping activator materials. Moreover, crystal structures, morphologies luminescence properties of different-doped-Eu-concentration (2%-10%) samples are characterized in detail. According to energy dispersive spectrometer X-ray diffraction (XRD) results, cell volume B content will gradually increase with Eu...
We studied the steady-state and time-resolved luminescence properties of CdTe CdTe/CdS core/shell quantum dots by one-and two-photon excitation with a femtosecond laser low intensity. The 800 nm causes blue shift emission peak compared 400 excitation. Near-quadratic power dependence up-conversion intensity biexponential decay kinetics are observed. It is found that upconversion composed photoinduced trapping band edge excitonic state. caused relative change in between states. Two-step...
高分五号(GF-5)号卫星所搭载的大气多角度偏振探测仪(DPC)能够对地球进行多波段,多角度和的连续观测,其数据对研究全球大气云分布及云辐射反馈作用提供新的视角。本文通法国多角度偏振载荷POLDER(POLarization and Directionality of the Earth's Reflectances)云检测算法为参考,结合DPC多波段反射率、偏振反射率、表观压强等信息开发了一个适用于DPC的云检测算法。算法主要分为3个部分:首先是阈值方法对云像元进行检测,同时引入表观压强对不同高度的云(如卷云、层积云等)进行进一步的条件约束,然后利用865...
Upconversion emission of different nanocrystalline YVO 4 :Er 3+ , Yb synthesized by a hydrothermal process at low temperature was studied under 980 nm excitation where green [( 2 H 11/2 S 3/2 ) → I 15/2 ] and red ( F 9/2 emissions demonstrate sensitivity to the local environments Er . Small particle size, high concentration, or favors transition. Both XRD patterns Raman spectra have confirmed that crystal lattice distortion nanocrystals is more serious when nanoparticle size decreasing...
Commercially used phosphors rely heavily on rare earth (RE)-doped host materials, which are becoming increasingly costly due to their limited availability. Addressing this challenge, we successfully developed novel RE-free self-activated Sr9(BN2)6(SBN) and Sr8Mg1(BN2)6 (SMBN) through a simple one-step solid-state sintering process. Both possess the same cubic crystal structure. Replacing Sr2+ with Mg2+ ions effectively adjusts vacancy, resulting in peculiar luminescence properties, such as...