Reliable temperature sensing based on intense green upconversion emissions of Y2Mo4O15:Yb3+,Er3+ under 980 nm excitation

2018 ◽  
Vol 550 ◽  
pp. 145-153 ◽  
Author(s):  
Wenbo Peng ◽  
Tao Pang
Keyword(s):  
Temperature Sensing ◽  
Reliable Temperature ◽  
Upconversion Emissions

Enhanced optical temperature sensing and upconversion emissions based on the Mn2+ codoped NaGdF4:Yb3+,Ho3+ nanophosphor

2019 ◽  
Vol 43 (13) ◽  
pp. 5011-5019 ◽  
Author(s):  
Qinping Qiang ◽  
Yuhua Wang
Keyword(s):  
Temperature Sensing ◽  
Detection Sensitivity ◽  
High Detection ◽  
Upconversion Emissions ◽  
High Detection Sensitivity

In this study, to explore new phosphors for temperature sensing with high detection sensitivity, Yb3+/Ho3+/Mn2+ doped hexagonal NaGdF4 nanoparticles were designed.

Enhancing upconversion emissions and temperature sensing properties by incorporating Mn2+ for KLu2F7:Yb3+/Er3+ nanocrystals based on thermally and non-thermally coupled levels

2021 ◽  
Vol 45 (8) ◽  
pp. 3876-3885
Author(s):  
Yan Peng ◽  
Zhiyuan Cheng ◽  
Wasim Ullah Khan ◽  
Tong Liu ◽  
Menghan Shen ◽  
...  
Keyword(s):  
Temperature Sensitivity ◽  
Temperature Sensing ◽  
Sensing Properties ◽  
Pure Phase ◽  
Upconversion Emissions

Pure phase KLu2F7:Yb3+/Er3+/Mn2+ nanocrystals were obtained for which the temperature sensitivity reached up to 45.11 × 10−3 K−1 employing non-thermally coupled levels.

scholarly journals Five-photon UV upconversion emissions of Er^3+ for temperature sensing

2015 ◽  
Vol 23 (6) ◽  
pp. 7653 ◽  
Author(s):  
Kezhi Zheng ◽  
Weiye Song ◽  
Guanghui He ◽  
Zhen Yuan ◽  
Weiping Qin
Keyword(s):  
Temperature Sensing ◽  
Upconversion Emissions

scholarly journals Multiple Temperature-Sensing Behavior of Green and Red Upconversion Emissions from Stark Sublevels of Er3+

Sensors ◽  
2015 ◽  
Vol 15 (12) ◽  
pp. 30981-30990 ◽  
Author(s):  
Baosheng Cao ◽  
Jinlei Wu ◽  
Xuehan Wang ◽  
Yangyang He ◽  
Zhiqing Feng ◽  
...  
Keyword(s):  
Temperature Sensing ◽  
Upconversion Emissions

Optical Temperature Sensing Behavior Through Stark Sublevels Transitions of Green and Red Upconversion Emissions for Er3+–Yb3+–Li+ Codoped TiO2 Phosphors

2016 ◽  
Vol 16 (4) ◽  
pp. 3768-3771 ◽  
Author(s):  
Y. Y He ◽  
J. L Wu ◽  
X. H Wang ◽  
Z. Q Feng ◽  
B Dong
Keyword(s):  
Energy Level ◽  
Laser Diode ◽  
Fluorescence Intensity ◽  
Sol Gel ◽  
Temperature Sensing ◽  
Gel Method ◽  
Maximum Value ◽  
Wide Range ◽  
Intensity Ratios ◽  
Upconversion Emissions

The Er3+–Yb3+–Li+ codoped TiO2 phosphors have been prepared by sol–gel method. The green and red upconversion emissions were observed under a 976 nm laser diode excitation, which were ascribed to 2H11/2→4I15/2, 4S3/2(I)/4S3/2(II)→4I15/2, and 4F9/2(I)/4F9/(2II)→4I15/2 transitions of Er3+ Stark sublevels. The fluorescence intensity ratios (FIR), which are corresponding to the transitions of 2H11/2/(4S3/2(I)+4S3/2(II)→4I15/2, 4S3/2(I)/4S3/(2II)→4I15/2, and 4F9/2(I)/4F9/2(II)→4I15/2, have been studied as a function of temperature in the range of 303 ∼ 673 K. The temperature sensitivities have been calculated at the maximum value of 0.0020 K-1, 0.0015 K-1, and 0.0011 K-1 at the temperatures of 427 K, 350 K, and 273 K for the three coupled energy level transitions, respectively. The Er3+–Yb3+–Li+ codoped TiO2 phosphor with different temperature sensitivities by Stark sublevels indicated that it is a promising material for application in optical temperature sensing at a wide range of temperature.

A New Scanning Thermal Microprobe

1997 ◽  
Vol 503 ◽  
Author(s):  
Yongxia Zhang ◽  
Yanwei Zhang ◽  
Juliana Blaser ◽  
T. S. Sriiram ◽  
R. B. Marcus
Keyword(s):  
Thin Film ◽  
High Resolution ◽  
Thermal Response ◽  
Temperature Sensing ◽  
Thermal Sensor ◽  
Atomic Force ◽  
Thin Film Thermocouple ◽  
Processing Steps ◽  
Thermocouple Junction

ABSTRACTA thermal microprobe has been designed and built for high resolution temperature sensing. The thermal sensor is a thin-film thermocouple junction at the tip of an Atomic Force Microprobe (AFM) silicon probe needle. Only wafer-stage processing steps are used for the fabrication. The thermal response over the range 25–s 4.5–rovolts per degree C and is linear.

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