Optical temperature sensing in Er3+-Yb3+ codoped CaWO4 and the laser induced heating effect on the luminescence intensity saturation

2017 ◽  
Vol 726 ◽  
pp. 547-555 ◽  
Author(s):  
Wei Xu ◽  
Ying Cui ◽  
Yuwei Hu ◽  
Longjiang Zheng ◽  
Zhiguo Zhang ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Temperature Sensing ◽  
Heating Effect ◽  
Intensity Saturation

Upconversion Luminescence, Laser Heating Effect and Temperature Sensing Properties of β-BiNbO4:Er3+/Yb3+

2020 ◽  
Vol 50 (1) ◽  
pp. 201-208
Author(s):  
Yongqiang Wang ◽  
Xingbang Dong ◽  
Huanjun Zhang ◽  
Xiaobo Deng ◽  
Xuerui Cheng
Keyword(s):  
Laser Heating ◽  
Upconversion Luminescence ◽  
Temperature Sensing ◽  
Heating Effect ◽  
Sensing Properties

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

Size dependent sensitivity of Yb3+,Er3+ up-converting luminescent nano-thermometers

2017 ◽  
Vol 5 (31) ◽  
pp. 7890-7897 ◽  
Author(s):  
L. Marciniak ◽  
K. Prorok ◽  
A. Bednarkiewicz
Keyword(s):  
Luminescence Intensity ◽  
Electronic Transition ◽  
Intensity Ratio ◽  
Temperature Sensing ◽  
Contact Temperature ◽  
Size Dependent ◽  
Co Doped

The non-contact temperature sensing using the luminescence intensity ratio (LIR) between 2H11/2 → 4I15/2 and 4S3/2 → 4I15/2 electronic transition in upconverting Yb3+ and Er3+ co-doped nanocrystals has been known for two decades.

scholarly journals Up-Converting Luminescence and Temperature Sensing of Er3+/Tm3+/Yb3+ Co-Doped NaYF4 Phosphors Operating in Visible and the First Biological Window Range

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2660
Author(s):  
Jingyun Li ◽  
Yuxiao Wang ◽  
Xueru Zhang ◽  
Liang Li ◽  
Haoyue Hao
Keyword(s):  
Energy Level ◽  
Luminescence Intensity ◽  
Industrial Production ◽  
Intensity Ratio ◽  
Temperature Sensors ◽  
Temperature Sensing ◽  
Optical Thermometry ◽  
Potential Applications ◽  
Sensing Sensitivity ◽  
Co Doped

Accurate and reliable non-contact temperature sensors are imperative for industrial production and scientific research. Here, Er3+/Tm3+/Yb3+ co-doped NaYF4 phosphors were studied as an optical thermometry material. The typical hydrothermal method was used to synthesize hexagonal Er3+/Tm3+/Yb3+ co-doped NaYF4 phosphors and the morphology was approximately rod-like. The up-conversion emissions of the samples were located at 475, 520, 550, 650, 692 and 800 nm. Thermo-responsive emissions from the samples were monitored to evaluate the relative sensing sensitivity. The thermal coupled energy level- and non-thermal coupled energy level-based luminescence intensity ratio thermometry of the sample demonstrated that these two methods can be used to test temperature. Two green emissions (520 and 550 nm), radiated from 2H11/2/4S3/2 levels, were monitored, and the maximum relative sensing sensitivities reached to 0.013 K−1 at 297 K. The emissions located in the first biological window (650, 692 and 800 nm) were monitored and the maximum relative sensing sensitivities reached to 0.027 (R692/650) and 0.028 K−1 (R692/800) at 297 K, respectively. These results indicate that Er3+/Tm3+/Yb3+ co-doped NaYF4 phosphors have potential applications for temperature determination in the visible and the first biological window ranges.

Optical temperature sensing with minimized heating effect using core–shell upconversion nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (26) ◽  
pp. 21540-21545 ◽  
Author(s):  
Weibo Chen ◽  
Chengjian Shi ◽  
Taojunyu Tao ◽  
Meixi Ji ◽  
Shuhong Zheng ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Temperature Sensing ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Heating Effect ◽  
Temperature Range

Core–shell NaYF4:Yb3+, Tm3+@NaYF4:Yb3+, Nd3+ nanosystem for temperature sensing with a minimized heating effect, which demonstrates a high sensitivity of up to 1.55% K−1 at a temperature range between 313 and 553 K.

Temperature sensing based on the 4F7/2/4S3/2−4I15/2 upconversion luminescence intensity ratio in NaYF4:Er3+/Yb3+ nanocrystals

2019 ◽  
Vol 206 ◽  
pp. 335-341 ◽  
Author(s):  
Leipeng Li ◽  
Feng Qin ◽  
Yuan Zhou ◽  
Yangdong Zheng ◽  
Hua Zhao ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Intensity Ratio ◽  
Upconversion Luminescence ◽  
Temperature Sensing

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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