Enhancing upconversion luminescence and thermal sensing properties of Er/Yb co‐doped oxysulfide core‐shell nanocrystals

2020 ◽  
Vol 104 (2) ◽  
pp. 985-994
Author(s):  
Jianxin Jiao ◽  
Yuwei Liu ◽  
Hong Wang ◽  
Xiumei Yin ◽  
Mingming Xing ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Core Shell ◽  
Sensing Properties ◽  
Thermal Sensing ◽  
Co Doped

scholarly journals Upconversion luminescence and temperature sensing properties of NaGd(WO4)2:Yb3+/Er3+@SiO2 core–shell nanoparticles

RSC Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 3981-3989
Author(s):  
Lu Zheng ◽  
Xinyi Huang ◽  
Jiuping Zhong ◽  
Zijun Wang ◽  
Xiaoning Cheng
Keyword(s):  
Upconversion Luminescence ◽  
Silica Shell ◽  
Temperature Sensing ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Sensing Properties ◽  
The Core ◽  
Thermal Sensing ◽  
Core Shell Nanoparticles

A shell of SiO2 with tunable thickness was uniformly coated on NaGd(WO4)2:Yb3+/Er3+ core upconversion nanoparticles (UCNPs). The effects of the silica shell on UC luminescence and thermal sensing properties of the core–shell UCNPs were investigated.

Optical Temperature Sensing of Core-Shell Structured NaYF4:Yb3+, Er3+@NaYF4 Nanocrystals with Different Shell Thickness

2015 ◽  
Vol 738-739 ◽  
pp. 27-30
Author(s):  
Dong Dong Li ◽  
Qi Yue Shao ◽  
Yan Dong ◽  
Jian Qing Jiang
Keyword(s):  
Shell Thickness ◽  
Thermal Sensitivity ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Sensing Properties ◽  
The Core ◽  
Β Phase ◽  
Biomedical Fields

Hexagonal (β)-phase NaYF4:Yb3+, Er3+ upconversion nanoparticles (UCNPs) with and without an inert (undoped NaYF4) shell have been successfully synthesized and the effects of shell thickness on the upconversion luminescence (UCL) and temperature sensing properties were systematically investigated. It was found that the NaYF4 shell and its thickness do not affect the RHS values and thermal sensitivity, but can obviously improve the UCL intensity of NaYF4:Yb3+, Er3+ UCNPs. It implies that the core-shell structured NaYF4:Yb3+, Er3+@NaYF4 UCNPs with excellent UCL properties have great potential to be used as temperature sensing probes in biomedical fields, without considering the influences of the shell thickness on their temperature sensing properties.

Upconversion Luminescence of MgSc2O4: Er3+/Yb3+ Nanocrystals Co-doped Alkali Ions

2020 ◽  
Vol 41 (11) ◽  
pp. 1351-1357
Author(s):  
Mei-juan YUANG ◽  
◽  
Jing LI ◽  
Hui-lian QIN ◽  
Ya-ru PENG ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Alkali Ions ◽  
Co Doped

Insight into the mechanism of intense NIR-to-red upconversion luminescence in Er3+ doped and Er3+–Yb3+ co-doped SrF2 nanoparticles

2021 ◽  
Vol 45 (14) ◽  
pp. 6469-6478
Author(s):  
Qingling Zeng ◽  
Wenxiang He ◽  
Fangfei Luan ◽  
Yu Yan ◽  
Hongli Du ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Theoretical Basis ◽  
Upconversion Luminescence ◽  
Insight Into ◽  
Co Doped

SrF2:Yb3+,Er3+ NPs were synthesized by the hydrothermal method and their luminescence mechanism was discussed in detail, which provided a theoretical basis for further understanding the properties of the materials.

Ion-biosorption induced core–shell Fe2P@carbon nanoparticles decorated on N, P co-doped carbon materials for the oxygen evolution reaction

2021 ◽  
Author(s):  
Min Jiang ◽  
Wei Fan ◽  
Anquan Zhu ◽  
Pengfei Tan ◽  
Jianping Xie ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Carbon Nanoparticles ◽  
Carbon Materials ◽  
Cost Effective ◽  
Core Shell ◽  
Co Doped

This work employs bacteria as precursors and induces a cost-effective biosorption strategy to obtain Fe2P@carbon nanoparticles decorated on N and P co-doped carbon (Fe2P@CNPs/NPC) materials.

The effect of shell thickness on gas sensing properties of core-shell fibers

2021 ◽  
Vol 332 ◽  
pp. 129456
Author(s):  
Ming Zhang ◽  
Ning Sui ◽  
Rui Wang ◽  
Tong Zhang
Keyword(s):  
Shell Thickness ◽  
Gas Sensing ◽  
Core Shell ◽  
Sensing Properties ◽  
Gas Sensing Properties

Ru/Nb co-doped perovskite anode: Achieving good coking resistance in hydrocarbon fuels via core-shell nanocatalysts exsolution

2021 ◽  
pp. 120613
Author(s):  
Mingxia Qin ◽  
Yu Xiao ◽  
Hongyu Yang ◽  
Ting Tan ◽  
Ziming Wang ◽  
...  
Keyword(s):  
Hydrocarbon Fuels ◽  
Core Shell ◽  
Co Doped

Synthesis of core–shell α-Fe2O3@NiO nanofibers with hollow structures and their enhanced HCHO sensing properties

2015 ◽  
Vol 3 (10) ◽  
pp. 5635-5641 ◽  
Author(s):  
Jing Cao ◽  
Ziying Wang ◽  
Rui Wang ◽  
Sen Liu ◽  
Teng Fei ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Coaxial Electrospinning ◽  
Core Shell ◽  
Sensing Properties ◽  
Hollow Structures ◽  
Hollow Nanostructures ◽  
Electrospinning Method

Core–shell α-Fe2O3@NiO nanofibers with hollow nanostructures are synthesized by a facile coaxial electrospinning method and calcination procedure and present enhanced HCHO gas sensing performances.

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