Size-dependent upconversion luminescence and temperature sensing behavior of spherical Gd2O3:Yb3+/Er3+ phosphor

RSC Advances ◽  
2015 ◽  
Vol 5 (19) ◽  
pp. 14123-14128 ◽  
Author(s):  
Yue Tian ◽  
Bining Tian ◽  
Cai'e Cui ◽  
Ping Huang ◽  
Lei Wang ◽  
...  
Keyword(s):  
Particle Size ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Ofelt Theory ◽  
Size Dependent ◽  
Sensing Sensitivity

In this paper, we found that sensing sensitivity increases with decreasing the particle size, which was confirmed by the Judd–Ofelt theory.

Particle-size-dependent upconversion luminescence of NaYF4: Yb, Er nanoparticles in organic solvents and water at different excitation power densities

Nano Research ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 6360-6374 ◽  
Author(s):  
Marco Kraft ◽  
Christian Würth ◽  
Verena Muhr ◽  
Thomas Hirsch ◽  
Ute Resch-Genger
Keyword(s):  
Particle Size ◽  
Organic Solvents ◽  
Upconversion Luminescence ◽  
Excitation Power ◽  
Size Dependent ◽  
Power Densities

Upconversion luminescence and ratiometric temperature sensing behavior of Er3+/Yb3+-codoped CaY2Ge3O10 germanate

2021 ◽  
Vol 31 (1) ◽  
pp. 113-115
Author(s):  
Olga A. Lipina ◽  
Ludmila L. Surat ◽  
Alexander Yu. Chufarov ◽  
Alexander P. Tyutyunnik ◽  
Vladimir G. Zubkov
Keyword(s):  
Upconversion Luminescence ◽  
Temperature Sensing

Simultaneous size adjustment and upconversion luminescence enhancement of β-NaLuF4:Yb3+/Er3+,Er3+/Tm3+ microcrystals by introducing Ca2+ for temperature sensing

CrystEngComm ◽  
2018 ◽  
Vol 20 (14) ◽  
pp. 2029-2035 ◽  
Author(s):  
Aihua Zhou ◽  
Feng Song ◽  
Yingdong Han ◽  
Feifei Song ◽  
Dandan Ju ◽  
...  
Keyword(s):  
Low Temperature ◽  
Hydrothermal Method ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Facile Hydrothermal Method ◽  
Luminescence Enhancement ◽  
Size Adjustment

β-NaLuF4:Yb3+/Er3+ microcrystals have been obtained through a facile hydrothermal method at a relatively low temperature (180 °C) within only two hours.

Up-conversion emission and in vitro cytotoxicity characterization of blue emitting, biocompatible SrTiO3 nanoparticles activated with Tm3+ and Yb3+ ions

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 39469-39479 ◽  
Author(s):  
R. Pazik ◽  
A. Zięcina ◽  
B. Poźniak ◽  
M. Malecka ◽  
L. Marciniak ◽  
...  
Keyword(s):  
Particle Size ◽  
Cytotoxic Effect ◽  
In Vitro Cytotoxicity ◽  
Ion Release ◽  
Size Dependent ◽  
U2os Cells

Blue emitting, up-converting NP's of SrTiO3:Tm3+/Yb3+ synthesized using the citric route are biocompatible towards J774.E whereas the cytotoxic effect to U2OS cells is not particle size dependent but most probably is related to Sr2+ ion release.

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.

Particle size dependent hysteresis loss in La0.7Ce0.3Fe11.6Si1.4C0.2 first‐order systems

2012 ◽  
Vol 100 (7) ◽  
pp. 072403 ◽  
Author(s):  
F. X. Hu ◽  
L. Chen ◽  
J. Wang ◽  
L. F. Bao ◽  
J. R. Sun ◽  
...  
Keyword(s):  
Particle Size ◽  
Hysteresis Loss ◽  
First Order ◽  
Size Dependent

Size-dependent solution-mediated phase transformation of piroxicam monohydrate particles

CrystEngComm ◽  
2021 ◽  
Vol 23 (16) ◽  
pp. 2928-2932
Author(s):  
Changlin Yao ◽  
Lei Wang ◽  
Xinyuan Wang ◽  
Xutang Tao
Keyword(s):  
Particle Size ◽  
Phase Transformation ◽  
Size Dependent

The transformation from the piroxicam monohydrate to form I or form II could be achieved precisely by adjusting the particle size itself in the 99% acetone-1% H2O solvent at 31 °C.

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