Er3+/Yb3+ codoped phosphor Ba3Y4O9 with intense red upconversion emission and optical temperature sensing behavior

2018 ◽  
Vol 6 (13) ◽  
pp. 3459-3467 ◽  
Author(s):  
Hao Wu ◽  
Zhendong Hao ◽  
Liangliang Zhang ◽  
Xia Zhang ◽  
Yu Xiao ◽  
...  

Bright red upconversion phosphor Ba3Y4O9:Er3+/Yb3+ and dual-color complementary optical thermometry to maintain relatively high sensitivities over a wide temperature scope.

2017 ◽  
Vol 5 (45) ◽  
pp. 11769-11780 ◽  
Author(s):  
Daqin Chen ◽  
Shen Liu ◽  
Wei Xu ◽  
Xinyue Li

Ln3+ sensitized Cr3+ upconversion emission is realized in LiGa5O8 embedded glass ceramics, enabling its promising application in multi-modal optical thermometry.


2020 ◽  
Vol 221 ◽  
pp. 117037 ◽  
Author(s):  
Yingjie Zhao ◽  
Gongxun Bai ◽  
Youjie Hua ◽  
Qinghua Yang ◽  
Liang Chen ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86219-86236 ◽  
Author(s):  
Xiangfu Wang ◽  
Qing Liu ◽  
Yanyan Bu ◽  
Chun-Sheng Liu ◽  
Tao Liu ◽  
...  

Optical temperature sensing is a promising method to achieve the contactless temperature measurement and large-scale imaging. The current status of optical thermometry of rare-earth ions doped phosphors is reviewed in detail.


2017 ◽  
Author(s):  
Rolindes Balda ◽  
Noha Hakmeh ◽  
Odile Merdrignac-Conanec ◽  
M. Angeles Arriandiaga ◽  
Joaquin Fernandez

NANO ◽  
2019 ◽  
Vol 14 (06) ◽  
pp. 1950076 ◽  
Author(s):  
Haiquan Liu ◽  
Jianing Rong ◽  
Yao Song ◽  
Guoqiong Shen ◽  
Wen Gu ◽  
...  

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.


Author(s):  
Kexiu Wang ◽  
Hao Wu ◽  
Guo-Hui Pan ◽  
Huajun Wu ◽  
Liangliang Zhang ◽  
...  

Stabilizing monoclinic ZrO2:Er3+,Yb3+ by doping with Nb5+ and realizing dual-color complementary thermometry.


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