ChemInform Abstract: Enhancement of the Upconversion Luminescence Intensity in Er3+ Doped BaTiO3 Nanocrystals by Codoping with Li+ Ions.

ChemInform ◽  
2011 ◽  
Vol 42 (23) ◽  
pp. no-no
Author(s):  
Qiu Sun ◽  
Xiangqun Chen ◽  
Zhikai Liu ◽  
Fuping Wang ◽  
Zhaohua Jiang ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Upconversion Luminescence

Excitation efficiency determines the upconversion luminescence intensity of β-NaYF4:Er3+,Yb3+ nanoparticles in magnetic fields up to 70 T

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20300-20307 ◽  
Author(s):  
Anna Borodziuk ◽  
Michał Baranowski ◽  
Tomasz Wojciechowski ◽  
Roman Minikayev ◽  
Bożena Sikora ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Excitation Efficiency ◽  
The Magnetic Field

We resolve a long standing discrepancy between various reports on the effect of the magnetic field on up-converted luminescence.

Upconversion luminescence, intensity saturation effect, and thermal effect in Gd2O3:Er3,Yb3+ nanowires

2005 ◽  
Vol 123 (17) ◽  
pp. 174710 ◽  
Author(s):  
Yanqiang Lei ◽  
Hongwei Song ◽  
Linmei Yang ◽  
Lixin Yu ◽  
Zhongxin Liu ◽  
...  
Keyword(s):  
Thermal Effect ◽  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Saturation Effect ◽  
Intensity Saturation

Improved Upconversion Luminescence in Water-Soluble Yb3+/Er3+ Codoped LaF3 Nanoparticles Through Ca2+ Doping

2016 ◽  
Vol 16 (4) ◽  
pp. 3883-3885 ◽  
Author(s):  
Shihu Liu ◽  
Peng Zhang ◽  
Daguang Li ◽  
Min Lan ◽  
Zhe Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Environmentally Friendly ◽  
Polyol Process ◽  
Rare Earth Ions ◽  
Water Soluble

Monodisperse water-soluble LaF3: Yb3+/Er3+ nanocrystals (NCs) have been successfully fabricated via a fast, facile, and environmentally-friendly polyol process with polyvinylpyrrolidone (PVP) as an amphiphilic surfactant. The obtained NCs with a small size of 18 nm can be well dispersed in hydrophilic solutions. Meanwhile, their upconversion (UC) luminescence intensity was increased through Ca2+ doping due to the decrease of symmetry around rare earth ions.

Spectral management in upconverting sesquioxide through matrix doping

2015 ◽  
Vol 3 (38) ◽  
pp. 9869-9876 ◽  
Author(s):  
Dekang Xu ◽  
Hao Lin ◽  
Anming Li ◽  
Shenghong Yang ◽  
Yueli Zhang
Keyword(s):  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Color Tuning

Simultaneous upconversion luminescence intensity and color tuning in Gd2O3:Yb/Er through matrix doping with GdOF.

scholarly journals Multispectral upconversion luminescence intensity ratios for ascertaining the tissue imaging depth

Nanoscale ◽  
2014 ◽  
Vol 6 (15) ◽  
pp. 9257-9263 ◽  
Author(s):  
Kai Liu ◽  
Yu Wang ◽  
Xianggui Kong ◽  
Xiaomin Liu ◽  
Youlin Zhang ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Upconversion Emission ◽  
Tissue Imaging ◽  
Intensity Ratios ◽  
Imaging Depth

Ascertaining the tissue imaging depth from upconversion emission of nanoparticles.

scholarly journals Effect of the Temperature of NaYF4 : Er,Yb Upсonversion Particles on the Formation of Luminescence

2020 ◽  
Vol 20 (4) ◽  
pp. 306-310
Author(s):  
Elena A. Sagaidachnaya ◽  
◽  
Vyacheslav I. Kochubey ◽  
Keyword(s):  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Excitation Intensity ◽  
Luminescence Spectra ◽  
Hexagonal Prism ◽  
Green Band ◽  
Green Luminescence ◽  
Temperature Range

The intensity of upconversion luminescence depends nonlinearly on the excitation intensity. The aim of this work is to study the effect of the temperature of NaYF4:Er,Yb upconversion particles on the dependence of the luminescence intensity on the excitation intensity. The synthesized particles were observed to have the shape of a hexagonal prism with a width of about 440 nm and a height of 445 nm. The upconversion luminescence spectra were obtained in the temperature range of 22–55° C with the excitation intensity in the range of 1.5–9.4 W/cm2. The obtained results show the green-band luminescence photons can be generated by means of two-step and three-step mechanisms: the contribution of these mechanisms depends on the temperature of the particles. As the temperature increases, the contribution of the three-stage mechanism of green luminescence excitation is enhanced.

Enhancement of the upconversion luminescence intensity in Er3+ doped BaTiO3 nanocrystals by codoping with Li+ ions

2011 ◽  
Vol 509 (17) ◽  
pp. 5336-5340 ◽  
Author(s):  
Qiu Sun ◽  
Xiangqun Chen ◽  
Zhikai Liu ◽  
Fuping Wang ◽  
Zhaohua Jiang ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Upconversion Luminescence

Enhanced upconversion luminescence intensity of core–shell NaYF4 nanocrystals guided by morphological control

2019 ◽  
Vol 30 (10) ◽  
pp. 105701 ◽  
Author(s):  
Ning Kang ◽  
Jie Zhao ◽  
Yaming Zhou ◽  
Chaochao Ai ◽  
Xiumin Wang ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Core Shell ◽  
Morphological Control
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