Temperature dependent luminescence of Dy3+ doped BaYF5 nanoparticles for optical thermometry

2014 ◽  
Vol 14 (8) ◽  
pp. 1067-1071 ◽  
Author(s):  
Zhongmin Cao ◽  
Shaoshuai Zhou ◽  
Guicheng Jiang ◽  
Yonghu Chen ◽  
Changkui Duan ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Optical Thermometry

Optical thermometry based on anomalous temperature-dependent 1.53 μm infrared luminescence of Er3+ in BaMoO4: Er3+/Yb3+ phosphor

2018 ◽  
Vol 86 ◽  
pp. 278-285 ◽  
Author(s):  
Ruoshan Lei ◽  
Xin Liu ◽  
Feifei Huang ◽  
Degang Deng ◽  
Shilong Zhao ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Anomalous Temperature ◽  
Infrared Luminescence ◽  
Optical Thermometry

scholarly journals A new generation of dual-mode optical thermometry based on ZrO2:Eu3+ nanocrystals

Nanophotonics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 2347-2358 ◽  
Author(s):  
Jun Zhou ◽  
Ruoshan Lei ◽  
Huanping Wang ◽  
Youjie Hua ◽  
Denghao Li ◽  
...  
Keyword(s):  
High Performance ◽  
Temperature Sensitive ◽  
Nonradiative Relaxation ◽  
Temperature Dependent ◽  
Dual Mode ◽  
Optical Thermometry ◽  
New Type ◽  
Optical Thermometer ◽  
New Generation ◽  
Sensing Sensitivity

AbstractFor achieving well-performing optical thermometry, a new type of dual-mode optical thermometer is explored based on the valley-to-peak ratio (VPR) and fluorescence lifetime of Eu3+ emissions in the ZrO2:Eu3+ nanocrystals with sizes down to 10 nm. In the VPR strategy, the intensity ratio between the valley (600 nm) generated by the emission band overlap and the 606 nm peak (5D0→7F2), which is highly temperature sensitive, is employed, giving the maximum relative sensing sensitivity (Sr) of 1.8% K−1 at 293 K and good anti-interference performance. Meanwhile, the 606 nm emission exhibits a temperature-dependent decay lifetime with the highest Sr of 0.33% K−1 at 573 K, which is due to the promoted nonradiative relaxation with temperature. These results provide useful information for constructing high-performance dual-mode optical thermometers, which may further stimulate the development of photosensitive nanomaterials for frontier applications.

Temperature-dependent luminescence of BaLaMgNbO6:Mn4+, Dy3+ phosphor for dual-mode optical thermometry

2019 ◽  
Vol 95 ◽  
pp. 109199 ◽  
Author(s):  
Yan Lin ◽  
Lu Zhao ◽  
Bin Jiang ◽  
Jiashan Mao ◽  
Fengfeng Chi ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Dual Mode ◽  
Optical Thermometry

scholarly journals Room temperature optical thermometry based on the luminescence of the SiV defects in diamond

2018 ◽  
Vol 190 ◽  
pp. 04024
Author(s):  
Caius Miller ◽  
Laurits Puust ◽  
Valter Kiisk ◽  
Evgeny Ekimov ◽  
Igor Vlasov ◽  
...  
Keyword(s):  
Room Temperature ◽  
Near Infrared ◽  
Temperature Treatment ◽  
Temperature Sensing ◽  
High Temperature Treatment ◽  
Temperature Dependent ◽  
Zero Phonon Line ◽  
High Pressure High Temperature ◽  
Optical Thermometry ◽  
Inorganic Precursors

SiV-containing microcrystals of diamond are synthesised by using high-pressure high-temperature treatment of a mixture of pertinent organic-inorganic precursors. Photoluminescence of SiV defects were investigated with the aim to use the microcrystals for optical temperature sensing in near infrared at room temperature based on temperature-dependent shift of the 740 nm zero-phonon line of SiV photoemission.

Temperature-dependent luminescence of a phosphor mixture of Li2TiO3: Mn4+ and Y2O3: Dy3+ for dual-mode optical thermometry

2020 ◽  
Vol 821 ◽  
pp. 153467 ◽  
Author(s):  
Chunyan Xie ◽  
Peng Wang ◽  
Yan Lin ◽  
Xiantao Wei ◽  
Min Yin ◽  
...  
Keyword(s):  
Temperature Dependent ◽  
Dual Mode ◽  
Optical Thermometry

Temperature-dependent persistent luminescence of SrAl2O4:Eu2+, Dy3+, Tb3+: a strategy of optical thermometry avoiding real-time excitation

2018 ◽  
Vol 43 (16) ◽  
pp. 3882 ◽  
Author(s):  
Lu Zhao ◽  
Jiashan Mao ◽  
Bin Jiang ◽  
Xiantao Wei ◽  
Yonghu Chen ◽  
...  
Keyword(s):  
Real Time ◽  
Persistent Luminescence ◽  
Temperature Dependent ◽  
Optical Thermometry

scholarly journals In Situ Synthesis of β-Na1.5Y1.5F6: Er3+ Crystals in Oxyfluoride Silicate Glass for Temperature Sensors and Their Spectral Conversion and Optical Thermometry Analysis

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 6901
Author(s):  
Rajesh Dagupati ◽  
Robert Klement ◽  
Ramaraghavulu Rajavaram ◽  
José J. Velázquez ◽  
Dušan Galusek
Keyword(s):  
Energy Levels ◽  
Glass Ceramics ◽  
Relative Sensitivity ◽  
Spectroscopic Techniques ◽  
Temperature Dependent ◽  
Optical Thermometry ◽  
Bright Green ◽  
Quenching Method ◽  
Doped Glass

Transparent oxyfluoride glass-ceramics (GCs) with embedded β-Na1.5Y1.5F6 crystals doped with Er3+ ions were fabricated by a melt-quenching method with subsequent heat-treatment. The structural characterizations and spectroscopic techniques were performed to verify the precipitation of β-Na1.5Y1.5F6 crystals and partition of the Er3+ dopant into the crystals. Bright green up-conversion (UC) emission was achieved in Er3+-doped glass-ceramic (Er-GC). Furthermore, the temperature-dependent visible UC behavior based on thermally coupled energy levels (TCLs) and non-thermally coupled energy levels (NTCLs) was also examined in the temperature range 298 k to 823 K with maximum relative sensitivity (Sr) of 1.1% K−1 at 298 K for TCLs in Er-G and Er-GC samples.

(111) Monocrystalline Nickel Films

1972 ◽  
Vol 30 ◽  
pp. 512-513
Author(s):  
T.E. Pratt ◽  
R.W. Vook
Keyword(s):  
Film Thickness ◽  
Deposition Rate ◽  
Room Temperature ◽  
Narrow Range ◽  
High Vacuum ◽  
Residual Pressure ◽  
Temperature Dependent ◽  
Deposition Parameters ◽  
Transmission Electron ◽  
Substrate Temperatures

(111) oriented thin monocrystalline Ni films have been prepared by vacuum evaporation and examined by transmission electron microscopy and electron diffraction. In high vacuum, at room temperature, a layer of NaCl was first evaporated onto a freshly air-cleaved muscovite substrate clamped to a copper block with attached heater and thermocouple. Then, at various substrate temperatures, with other parameters held within a narrow range, Ni was evaporated from a tungsten filament. It had been shown previously that similar procedures would yield monocrystalline films of CU, Ag, and Au.For the films examined with respect to temperature dependent effects, typical deposition parameters were: Ni film thickness, 500-800 A; Ni deposition rate, 10 A/sec.; residual pressure, 10-6 torr; NaCl film thickness, 250 A; and NaCl deposition rate, 10 A/sec. Some additional evaporations involved higher deposition rates and lower film thicknesses.Monocrystalline films were obtained with substrate temperatures above 500° C. Below 450° C, the films were polycrystalline with a strong (111) preferred orientation.

Sign in / Sign up

Export Citation Format

Share Document