Luminescence properties and energy transfer of La3Ga5SiO14:Eu3+, Tb3+ phosphors

CrystEngComm ◽

10.1039/d1ce00487e ◽

2021 ◽

Author(s):

Xianggang Zuo ◽

Yi Wang ◽

Lei Wei ◽

Xianshun Lv ◽

Yangbin Fu ◽

...

Keyword(s):

Energy Transfer ◽

High Temperature ◽

Solid Phase ◽

Luminescence Properties ◽

Phase Method ◽

Excellent Performance ◽

Solid Phase Method

In this paper, a series of Eu3+/Tb3+ doped La3Ga5SiO14 (LGS: Eu3+, Tb3+) phosphors with excellent performance have been synthesized by high-temperature solid-phase method. The effects of Eu3+ and Tb3+ doping...

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Synthesis and Electrochemical Performance of LiFe1-xMnxPO4/C Cathode Material

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.347-353.3434 ◽

2011 ◽

Vol 347-353 ◽

pp. 3434-3438

Author(s):

Yan Jun Wei ◽

Guang Chuan Liang ◽

Li Wang ◽

Xiu Qin Ou

Keyword(s):

High Temperature ◽

Electrochemical Performance ◽

Cathode Material ◽

Electrochemical Properties ◽

Specific Energy ◽

Solid Phase ◽

Constant Current ◽

Phase Method ◽

Solid Phase Method ◽

Constant Current Charging

Olivine LiFe1−xMnxPO4/C composites were prepared by high temperature solid phase method using MnO2, NH4H2PO4, Li2CO3, FeC2O4•2H2O, glucose as the starting materials. XRD, SEM and constant-current charging/discharging tests were used to study the structure and electrochemical properties of the material. The result showed that when x=0.2 the material exhibited the optimal electrochemical performance, with a higher specific energy of 484.94 Wh/kg.

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Research on Electrochemical Properties of LiMnPO4 Synthesized by High Temperature Solid-Phase Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.487.714 ◽

2012 ◽

Vol 487 ◽

pp. 714-718 ◽

Cited By ~ 1

Author(s):

Sheng Kui Zhong ◽

Ying Mei Zhang ◽

Wei Li ◽

Yue Bin Xu

Keyword(s):

High Temperature ◽

Solid Phase ◽

Raw Materials ◽

Particle Surface ◽

Lithium Ion ◽

Xrd Analysis ◽

Spherical Particles ◽

Phase Method ◽

Solid Phase Method ◽

Olivine Structure

LiMnPO4cathode material for lithium ion batteries was synthesized by high temperature solid-phase method using MnCO3, Li2CO3, NH4H2PO4as raw materials. The structure of samples was identified by XRD analysis and the particle surface morphology was examined by SEM. The results of XRD showed that the LiMnPO4sample sintered at 700°C for 20h had single ordered olivine structure. The SEM pattern showed that spherical particles distributed uniformly. Respectively, it figured out that the initial charge and discharge capacities of the samples at 0.05C rate were 133.9 and 66.4mAh•g-1.

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Improved Electrochemical Properties of LiMn2O4-Based Cathode Material Co-Modified by Mg-Doping and Octahedral Morphology

Materials ◽

10.3390/ma12172807 ◽

2019 ◽

Vol 12 (17) ◽

pp. 2807 ◽

Cited By ~ 1

Author(s):

Hongyuan Zhao ◽

Yongfang Nie ◽

Dongyang Que ◽

Youzuo Hu ◽

Yongfeng Li

Keyword(s):

High Temperature ◽

Cathode Material ◽

Electrochemical Properties ◽

Solid Phase ◽

High Capacity ◽

Temperature Cycling ◽

Phase Method ◽

Mg Doping ◽

Jahn Teller ◽

Solid Phase Method

In this work, the spinel LiMn2O4 cathode material was prepared by high-temperature solid-phase method and further optimized by co-modification strategy based on the Mg-doping and octahedral morphology. The octahedral LiMn1.95Mg0.05O4 sample belongs to the spinel cubic structure with the space group of Fd3m, and no other impurities are presented in the XRD patterns. The octahedral LiMn1.95Mg0.05O4 particles show narrow size distribution with regular morphology. When used as cathode material, the obtained LiMn1.95Mg0.05O4 octahedra shows excellent electrochemical properties. This material can exhibit high capacity retention of 96.8% with 100th discharge capacity of 111.6 mAh g−1 at 1.0 C. Moreover, the rate performance and high-temperature cycling stability of LiMn2O4 are effectively improved by the co-modification strategy based on Mg-doping and octahedral morphology. These results are mostly given to the fact that the addition of magnesium ions can suppress the Jahn–Teller effect and the octahedral morphology contributes to the Mn dissolution, which can improve the structural stability of LiMn2O4.

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The decay model of Eu2+ and Eu2+, Dy3+ substituted SrAl2O4 prepared by high temperature solid phase method

Journal of Physics and Chemistry of Solids ◽

10.1016/j.jpcs.2018.09.022 ◽

2019 ◽

Vol 124 ◽

pp. 151-156 ◽

Cited By ~ 3

Author(s):

Lei Yang ◽

Qianwen Liu ◽

Hongying Zheng ◽

Siyuan Zhou ◽

Wei Zhang

Keyword(s):

High Temperature ◽

Solid Phase ◽

Phase Method ◽

Decay Model ◽

Solid Phase Method

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Structural analysis and optical temperature sensing performance of Eu3+-doped Ba3In(PO4)3

CrystEngComm ◽

10.1039/d0ce00997k ◽

2020 ◽

Vol 22 (35) ◽

pp. 5809-5817

Author(s):

Guangqing Zhang ◽

Maxim S. Molokeev ◽

Qianchao Ma ◽

Xuening Yang ◽

Shuiquan Han ◽

...

Keyword(s):

High Temperature ◽

Structural Analysis ◽

Solid Phase ◽

Temperature Sensing ◽

Phase Method ◽

Solid Phase Method ◽

Sensing Performance

Eu3+-Doped Ba3In(PO4)3 was synthesized through a high-temperature solid-phase method.

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Preparation of La1-xSrxMnO3 Materials by High Temperature Solid Phase Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.562-564.482 ◽

2012 ◽

Vol 562-564 ◽

pp. 482-485

Author(s):

Zeng Gang Li ◽

Zeng Yong Chu ◽

Yong Jiang Zhou ◽

Hai Feng Cheng

Keyword(s):

Crystal Structure ◽

Particle Size ◽

High Temperature ◽

Solid Phase ◽

Average Particle Size ◽

Phase Method ◽

Average Particle ◽

Structure And Morphology ◽

Solid Phase Method ◽

Perovskite Type

La1-xSrxMnO3 (LSMO) (x=0.1, 0.2, 0.3, 0.4)powders were synthesized by high temperature solid phase method, and the crystal structure and morphology were characterized by XRD and SEM. Results indicated that the pure perovskite type LSMO could be obtained after sintered at the temperature of 1000°C for 6h. The average particle size of the powders decreases with the increasing concentration of Strontium.

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Photoluminescence and afterglow behavior of Ce3+ activated Li2Sr0.9Mg0.1SiO4 phosphor

RSC Advances ◽

10.1039/c9ra05093k ◽

2019 ◽

Vol 9 (47) ◽

pp. 27386-27390

Author(s):

Yingjun Xiao ◽

Dongyun Zhang ◽

Chengkang Chang

Keyword(s):

High Temperature ◽

Solid Phase ◽

Phase Method ◽

Solid Phase Method

A blue emitting phosphor Li2Sr0.9Mg0.1SiO4:Ce3+, with long persistence, was synthesized via a high-temperature solid phase method.

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Effect of Anionic Group [SiO4]4-/[PO4]3- on the Luminescence Properties of Dy3+-Doped Tungstate Structural Compounds

10.21203/rs.3.rs-131871/v1 ◽

2020 ◽

Author(s):

Ning Liu ◽

Lefu Mei ◽

Jianxiong Bin ◽

Zhijian Peng

Keyword(s):

Solid Phase ◽

Emission Peak ◽

Luminescence Properties ◽

Phase Method ◽

The Novel ◽

Test Results ◽

Yellow Light ◽

Fluorescent Materials ◽

Solid Phase Method ◽

Optimum Doping Concentration

Abstract The novel scheelite structures of Li2Ca(WO4)2 , Li2Ca2(WO4)(SiO4), and LiCa2(WO4)(PO4) fluorescent materials were successfully prepared using a high-temperature solid-phase method. The compounds were characterized by XRD, EDS, and XRF. The test results showed that the substitution of [WO4]2- by [SiO4]4- /[PO4]3- tetrahedron in tungstate had no significant influence on the crystal structure of the Li2Ca(WO4)2. When Dy3+ ions were introduced as an activator at an optimum doping concentration of 0.08% mol, all of the as-prepared phosphors generated yellow light emissions, and the emission peak was located close to 576 nm. Replacing [WO4]2- with [SiO4]4- /[PO4]3- tetrahedron significantly increased the luminescence of the Li2Ca(WO4)2 phosphors. In addition, the LiCa2(WO4)(PO4):zDy3+ phosphors had the best luminescence properties, decay life (τ = 0.049 ms), and thermal stability (87.8%).

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