Emission color tuning of core/shell upconversion nanoparticles through modulation of laser power or temperature

Nanoscale ◽  
2017 ◽  
Vol 9 (33) ◽  
pp. 12132-12141 ◽  
Author(s):  
Qiyue Shao ◽  
Gongtuo Zhang ◽  
Lilai Ouyang ◽  
Yanqing Hu ◽  
Yan Dong ◽  
...  
Keyword(s):  
Laser Power ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Color Tuning ◽  
Temperature Responsive ◽  
Emission Color ◽  
Co Doped

Ho/Tm co-doped core/shell UCNPs with temperature-responsive color-tuning properties were achieved, by taking advantage of the different spectral sensitivities to temperature of Ho3+ and Tm3+ emitters.

Tuning upconversion through a sensitizer/activator-isolated NaYF4 core/shell structure

Nanoscale ◽  
2015 ◽  
Vol 7 (9) ◽  
pp. 3976-3984 ◽  
Author(s):  
Shuai Ye ◽  
Guanying Chen ◽  
Wei Shao ◽  
Junle Qu ◽  
Paras N. Prasad
Keyword(s):  
Solar Cells ◽  
Shell Structure ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Emission Color ◽  
Core Shell Structure

The ability to tune the emission color of upconversion nanoparticles (UCNPs) will greatly enhance the scope of their applications, ranging from infrared solar cells to volumetric multiplexed bioimaging.

scholarly journals Precision tuning of rare-earth-doped upconversion nanoparticles via droplet-based microfluidic screening

2021 ◽  
Author(s):  
Shangkun Li ◽  
Yingchao Meng ◽  
Yujia Guo ◽  
Tian Liu ◽  
Stavros Stavrakis ◽  
...  
Keyword(s):  
Rare Earth ◽  
Upconversion Nanoparticles ◽  
Color Tuning ◽  
Emission Color ◽  
Synthesis Approach ◽  
Rare Earth Doped

A droplet microfluidic-based synthesis approach allows rapid optimization and fine emission color tuning of rare-earth-doped upconversion nanoparticles.

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.

Excitation‐Dependent Emission Color Tuning of 0D Cs 2 InBr 5 ·H 2 O at High Pressure

2021 ◽  
pp. 2104923
Author(s):  
Qian Li ◽  
Bin Xu ◽  
Zhongwei Chen ◽  
Jiang Han ◽  
Li Tan ◽  
...  
Keyword(s):  
High Pressure ◽  
Color Tuning ◽  
Emission Color

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

Decoration of upconversion nanoparticles@mSiO2 core–shell nanostructures with CdS nanocrystals for excellent infrared light triggered photocatalysis

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54241-54248 ◽  
Author(s):  
Yao-Wu Li ◽  
Liang Dong ◽  
Chen-Xi Huang ◽  
Yan-Chuan Guo ◽  
Xian-Zhu Yang ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Photocatalytic Degradation ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Cds Nanocrystals ◽  
Shell Nanostructures ◽  
Cds Nanostructures

Upconversion nanoparticles@mesoporous silica (mSiO2)/CdS nanostructures have been designed and fabricated for infrared light triggered photocatalytic degradation towards RhB dye.

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.

Primary thermometers based on sol–gel upconverting Er3+/Yb3+ co-doped yttrium tantalates with high upconversion quantum yield and emission color tunability

2021 ◽  
Author(s):  
Fernanda Hediger Borges ◽  
Joana Costa Martins ◽  
Fábio José Caixeta ◽  
Rafael Ramiro Pereira ◽  
Luis Dias Carlos ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Sol Gel ◽  
Emission Color ◽  
Color Tunability ◽  
Co Doped
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