Luminescent properties of chromium(III)-doped lithium aluminate for temperature sensing

2014 ◽  
Vol 202 ◽  
pp. 1065-1069 ◽  
Author(s):  
Xinyue Li ◽  
Guicheng Jiang ◽  
Shaoshuai Zhou ◽  
Xiantao Wei ◽  
Yonghu Chen ◽  
...  
Keyword(s):  
Luminescent Properties ◽  
Temperature Sensing ◽  
Lithium Aluminate

scholarly journals Enhancing the Relative Sensitivity of V5+, V4+ and V3+ Based Luminescent Thermometer by the Optimization of the Stoichiometry of Y3Al5−xGaxO12 Nanocrystals

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1375 ◽  
Author(s):  
Kniec ◽  
Ledwa ◽  
Marciniak
Keyword(s):  
Energy Transfer ◽  
Emission Intensity ◽  
Spectral Response ◽  
Luminescent Properties ◽  
Relative Sensitivity ◽  
Temperature Sensing ◽  
Thermal Dependence ◽  
Temperature Range

In this work the influence of the Ga3+ concentration on the luminescent properties and the abilities of the Y3Al5−xGaxO12: V nanocrystals to noncontact temperature sensing were investigated. It was shown that the increase of the Ga3+ amount enables enhancement of V4+ emission intensity in respect to the V3+ and V5+ and thus modify the color of emission. The introduction of Ga3+ ions provides the appearance of the crystallographic sites, suitable for V4+ occupation. Consequently, the increase of V4+ amount facilitates V5+ → V4+ interionic energy transfer throughout the shortening of the distance between interacting ions. The opposite thermal dependence of V4+ and V5+ emission intensities enables to create the bandshape luminescent thermometr of the highest relative sensitivity of V-based luminescent thermometers reported up to date (Smax, 2.64%/°C, for Y3Al2Ga3O12 at 0 °C). An approach of tuning the performance of Y3Al5−xGaxO12: V nanocrystals to luminescent temperature sensing, including the spectral response, maximal relative sensitivity and usable temperature range, by the Ga3+ doping was presented and discussed.

scholarly journals Hydrothermal syntheses, luminescent properties, and temperature sensing of monodisperse Tb-doped NaCeF4 nanocrystals

2021 ◽  
Author(s):  
Haoran Qin ◽  
Xinghong Gong ◽  
Zundu Luo ◽  
Yidong Huang
Keyword(s):  
Hydrothermal Method ◽  
Luminescent Properties ◽  
Temperature Sensing ◽  
Hydrothermal Syntheses

Monodisperse Tb-doped NaCeF4 nanocrystals were synthesized via a hydrothermal method.

Solvothermal fabrication and luminescent properties of nanoLuAG:Ce phosphors

2014 ◽  
Vol 9 (1) ◽  
pp. 60-63 ◽  
Author(s):  
Lin Xing ◽  
Lianghui Qu ◽  
Qing He ◽  
Tong B. Tang ◽  
Linfeng Yang
Keyword(s):  
Luminescent Properties

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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