scholarly journals Upconversion luminescence enhancement and temperature sensing behavior of F− co-doped Ba3Lu4O9:Er3+/Yb3+ phosphors

RSC Advances ◽  
2017 ◽  
Vol 7 (59) ◽  
pp. 36935-36948 ◽  
Author(s):  
Songbin Liu ◽  
Shuifu Liu ◽  
Ming Zhou ◽  
Xinyu Ye ◽  
Dejian Hou ◽  
...  
Keyword(s):  
Crystal Field ◽  
Temperature Sensitivity ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Site Symmetry ◽  
Luminescence Enhancement ◽  
Co Doped ◽  
Activator Ions

F− doping to enhance upconversion luminescence and temperature sensitivity of Ba3Lu4O9:Er3+/Yb3+ (EYBLO) phosphors is ascribed to the modification of local crystal field of activator ions and reduction of crystal site symmetry.

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.

scholarly journals Effects of optical-inert ions on upconversion luminescence and temperature sensing properties of ScVO4:10%Yb3+/2%Er3+ nano/micro-particles

RSC Advances ◽  
2017 ◽  
Vol 7 (81) ◽  
pp. 51233-51244 ◽  
Author(s):  
Peng Li ◽  
Linna Guo ◽  
Chenxi Liang ◽  
Tiesheng Li ◽  
Penglei Chen ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Sensing Properties ◽  
Co Doping ◽  
Micro Particles

One Stone Two Birds: optically inert ions, especially Li+/Gd3+ co-doping improved upconversion luminescence and temperature sensitivity of ScVO4:10%Yb3+/2%Er3+ phosphor.

scholarly journals Study on Upconversion and Thermal Properties of Tm3+/Yb3+ Co-Doped La2O3-Nb2O5-Ta2O5 Glasses

Materials ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1352 ◽  
Author(s):  
Minghui Zhang ◽  
Haiqin Wen ◽  
Xiuhong Pan ◽  
Jianding Yu ◽  
Hui Shao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Thermal Properties ◽  
Upconversion Luminescence ◽  
Solid State Laser ◽  
Glass Forming Ability ◽  
High Thermal Stability ◽  
Temperature Sensing ◽  
Glass Forming ◽  
Dta Analysis ◽  
Co Doped

The effect of Yb3+ ions on upconversion luminescence and thermal properties of Tm3+/Yb3+ co-doped La2O3-Nb2O5-Ta2O5 glasses has been studied. Glass transition temperature is around 740 °C, indicating high thermal stability. The effect of Yb3+ ions on the thermal stability is not obvious. Both the glass forming ability and the upconversion luminescence first increase and then decrease with the increase of Yb3+ ions. The glasses perform low glass forming ability with ΔT around 55 °C. Blue and red emissions centered around 477, 651, and 706 nm are obtained at the excitation of 976 nm laser. The upconversion luminescence mechanism is energy transfer from Yb3+ to Tm3+ mixed with two- and three- photon processes. The thermal kinetic Differential Thermal Analysis (DTA)-analysis indicates that the average activation energy first increases and then decreases with the increase of Yb3+ ions. This result can be introduced in order to improve upconversion luminescence of glasses by crystallization in the future. Tm3+/Yb3+ co-doped La2O3-Nb2O5-Ta2O5 glasses with good upconversion and thermal properties show promising applications in solid-state laser, optical temperature sensing.

Temperature-dependent upconversion luminescence multicolor tuning and temperature sensing of multifunctional β-NaYF4:Yb/Er@ β-NaYF4:Yb/Tm microcrystals

CrystEngComm ◽  
2021 ◽  
Author(s):  
Dandan Ju ◽  
Xiaoli Gao ◽  
Shouchao Zhang ◽  
Yang Li ◽  
Wenjing Cui ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Luminescence Properties ◽  
Physical Parameters ◽  
Temperature Dependent ◽  
Color Tuning ◽  
Emission Color

Temperature is one of the physical parameters to affect the emission luminescence properties of upconversion (UC) materials. The temperature-dependent emission color tuning and good temperature sensitivity in multifunctional β-NaYF4:Yb/Er@ β-NaYF4:Yb/Tm...

Mechanism of upconversion luminescence enhancement in Yb3+/Er3+ co-doped Y2O3 through Li+ incorporation

2020 ◽  
Vol 22 (5) ◽  
pp. 2819-2826 ◽  
Author(s):  
Xiongfeng Yang ◽  
Min Liu ◽  
Jiandang Liu ◽  
Yuanhua Xia ◽  
Weiwei Ji ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Luminescence Enhancement ◽  
Efficient Strategy ◽  
Co Doped

Li+ doping is a well-known, simple, yet efficient strategy to optimize the properties of upconverting materials.

scholarly journals Upconversion luminescence enhancement by Fe3+ doping in CeO2:Yb/Er nanomaterials and their application in dye-sensitized solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (32) ◽  
pp. 18868-18874 ◽  
Author(s):  
Jingyi Bai ◽  
Pingping Duan ◽  
Xin Wang ◽  
Gui Han ◽  
Min Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystal Field ◽  
Upconversion Luminescence ◽  
Dye Sensitized Solar Cells ◽  
Luminescence Enhancement ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

The Fe3+-doping in CeO2:Fe/Yb/Er enhances upconversion luminescence by destroying the symmetry of the crystal field around Er3+, which improves DSSC performance.

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