scholarly journals Highly sensitive optical temperature sensing based on pump-power-dependent upconversion luminescence in LiZnPO4:Yb3+–Er3+/Ho3+ phosphors

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30926-30936
Author(s):  
Kamel Saidi ◽  
Wajdi Chaabani ◽  
Mohamed Dammak
Keyword(s):  
Pump Power ◽  
Pechini Method ◽  
Upconversion Luminescence ◽  
Sol Gel ◽  
Temperature Sensing ◽  
Optical Thermometry ◽  
Highly Sensitive

Novel orthophosphate LiZnPO4:Yb3+–Er3+/Ho3+ with tunable luminescence have been synthesized via sol–gel/Pechini method for optical thermometry.

Yb3+-Concentration dependent upconversion luminescence and temperature sensing behavior in Yb3+/Er3+ codoped Gd2MoO6 nanocrystals prepared by a facile citric-assisted sol–gel method

2017 ◽  
Vol 4 (12) ◽  
pp. 1987-1995 ◽  
Author(s):  
Peng Du ◽  
Xiaoyong Huang ◽  
Jae Su Yu
Keyword(s):  
Upconversion Luminescence ◽  
Sol Gel ◽  
Temperature Sensing ◽  
Gel Method ◽  
Sol Gel Method ◽  
Sensor Sensitivity ◽  
Optical Thermometry ◽  
Upconversion Nanocrystals

Er3+/Yb3+-Codoped Gd2MoO6 upconversion nanocrystals with high sensor sensitivity and wide operation range were demonstrated for non-contact optical thermometry.

The Enhancement of Upconversion Luminescence of Gd2O3:Yb,Er Nanoparticles by Ca2+ Codoping for Temperature Sensing at Room and High Temperatures

NANO ◽  
2019 ◽  
Vol 14 (06) ◽  
pp. 1950076 ◽  
Author(s):  
Haiquan Liu ◽  
Jianing Rong ◽  
Yao Song ◽  
Guoqiong Shen ◽  
Wen Gu ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Absolute Temperature ◽  
Temperature Sensing ◽  
Upconversion Nanoparticles ◽  
Chemical Route ◽  
Optical Thermometry ◽  
Wet Chemical ◽  
Wet Chemical Route ◽  
Thermal Detection ◽  
Fir Technique

We prepared a series of Gd2O3:Yb,Er,Ca (3/1/[Formula: see text][Formula: see text]mol.%, [Formula: see text] represents the nominal concentration of Ca element including 0, 2, 3, 4, 5, 7, 10) upconversion nanoparticles (UCNPs) with regular morphology via a wet-chemical route. We observed a simultaneous enhancement of upconversion luminescence (UCL) emission of Gd2O3:Yb,Er after Ca[Formula: see text] ions were doped. When the doping level of Ca[Formula: see text] reaches its optimal concentrate at 5[Formula: see text]mol.%, the red and green emissions increased by 6.3 and 11 times, respectively. The potential application of Gd2O3:Yb,Er,Ca material as a noninvasion optical thermometry based on FIR technique was investigated. The sensing of temperature at both high and room temperatures was realized by choosing different parameters. The absolute temperature sensitivity ([Formula: see text]) of Gd2O3:Yb,Er nanoparticles at 293[Formula: see text]K reached 0.0875[Formula: see text]K[Formula: see text], whereas Gd2O3:Yb,Er, 5[Formula: see text]mol.%Ca was chosen as sensor of high temperature due to its considerable Sa of 0.0060[Formula: see text]K[Formula: see text] at 573[Formula: see text]K. The resultant UCNPs provided a new way for sensitive thermal detection at various target temperatures.

Highly sensitive optical temperature sensing based on upconversion luminescence in Gd9.33(SiO4)6O2:Yb3+–Er3+/Ho3+ phosphors

2020 ◽  
Vol 49 (31) ◽  
pp. 10949-10957 ◽  
Author(s):  
Jia Zhang ◽  
Fangsheng Qian
Keyword(s):  
Solid State ◽  
Solid State Reaction ◽  
Upconversion Luminescence ◽  
Solid State Reaction Method ◽  
Temperature Sensing ◽  
Reaction Method ◽  
Highly Sensitive

In this paper, new upconversion (UC) phosphors for Yb3+–Er3+ and Yb3+–Ho3+-doped Gd9.33(SiO4)6O2 (GSO) were designed via a solid-state reaction method.

Color control and white upconversion luminescence of LaOF:Ln3+ (Ln = Yb, Er, Tm) nanocrystals prepared by the sol–gel Pechini method

2013 ◽  
Vol 42 (14) ◽  
pp. 5159 ◽  
Author(s):  
Kezhi Zheng ◽  
Ye Liu ◽  
Zhenyu Liu ◽  
Zhe Chen ◽  
Weiping Qin
Keyword(s):  
Pechini Method ◽  
Upconversion Luminescence ◽  
Sol Gel ◽  
Color Control

Temperature-sensing luminescent materials La9.67Si6O26.5:Yb3+–Er3+/Ho3+ based on pump-power-dependent upconversion luminescence

2020 ◽  
Vol 7 (24) ◽  
pp. 4892-4901
Author(s):  
Jia Zhang ◽  
Jiajun Chen ◽  
Yining Zhang
Keyword(s):  
Rare Earth ◽  
Pump Power ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Luminescent Materials ◽  
Rare Earth Ion ◽  
Potential Applications

Rare earth ion doped upconversion (UC) luminescent materials could show potential applications in optical temperature sensing.

scholarly journals Understanding differences in Er3+–Yb3+ codoped glass and glass ceramic based on upconversion luminescence for optical thermometry

RSC Advances ◽  
2018 ◽  
Vol 8 (22) ◽  
pp. 12165-12172 ◽  
Author(s):  
Yingxin Hao ◽  
Shichao Lv ◽  
Zhijun Ma ◽  
Jianrong Qiu
Keyword(s):  
Glass Ceramic ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Optical Thermometry

Optical thermometry comparison between glass and corresponding glass ceramic and understand difference for optimized temperature sensing materials.

Upconversion Luminescence and Temperature Sensing of InNbO4:Er3+/Yb3+ Phosphors

2021 ◽  
Vol 13 (4) ◽  
pp. 563-568
Author(s):  
Xingbang Dong ◽  
Huanjun Zhang ◽  
Yi Li ◽  
Zheng Wang ◽  
Yang Yang ◽  
...  
Keyword(s):  
Upconversion Luminescence ◽  
Solid State Reaction Method ◽  
Temperature Sensing ◽  
Fluorescence Intensity Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
Co Doping ◽  
Two Photon ◽  
Maximum Value ◽  
Optical Thermometry

Er3+/Yb3+ co-doped InNbO4 phosphors were synthesized using solid state reaction method. Crystal structure was characterized using X-ray diffraction (XRD), which confirm all obtained phosphors had a monoclinic-wolframite structure and no impurity phase was introduced upon doping. Upon 980 nm excitation, upconversion (UC) emission from Er3+ ions was observed in green and red range. UC emission was obviously enhanced after co-doping Yb3+ ions and reached the maximum for 10 mol% Yb3+ ions. The relation between emission intensity and pump power was performed, revealing that the UC emission result from two-photon processes. Optical temperature sensing property was investigated by exploiting fluorescence intensity ratio (FIR) between 2H11/2 and 4S3/2 levels of Er3+ ions. Its maximum value of absolute sensitivity obtained was 0.0091 K-1, suggesting InNbO4:Er3+/Yb3+ phosphors show potential application in optical thermometry.

Highly sensitive ratiometric optical cryothermometer in a new broadband emitting trivalent bismuth singly activated Ba2ZnSc(BO3)3 microcrystal

2021 ◽  
Author(s):  
Shixiang Huang ◽  
Feng Zhang ◽  
Zhangyue Wu ◽  
Ying Fu ◽  
Chao Li
Keyword(s):  
Low Temperature ◽  
High Performance ◽  
Temperature Sensing ◽  
Optical Thermometry ◽  
Highly Sensitive

Motived by the growing demand for noncontact temperature sensing in cryogenic environments, the development of a high performance low temperature optical thermometry is more and more urgent. Herein, we demonstrate...

Red emitting Eu:ZnO nanorods for highly sensitive fluorescence intensity ratio based optical thermometry

2017 ◽  
Vol 5 (5) ◽  
pp. 1074-1082 ◽  
Author(s):  
S. Senapati ◽  
K. K. Nanda
Keyword(s):  
Fluorescence Intensity ◽  
Intensity Ratio ◽  
Temperature Sensing ◽  
Fluorescence Intensity Ratio ◽  
Optical Thermometry ◽  
Highly Sensitive

Red emitting Eu:ZnO nanorods for highly sensitive optical ratiometric temperature sensing by following the fluorescence intensity ratio technique.

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