Yb3+/Tb3+/Ho3+: phosphate nanophase embedded glass ceramics: enhanced upconversion emission and temperature sensing behavior

2018 ◽  
Vol 30 (1) ◽  
pp. 778-785 ◽  
Author(s):  
Yong Chen ◽  
Xiangyu Liu ◽  
Jiwen Xu ◽  
Tao Yang ◽  
Zhenchun Li ◽  
...  
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.


Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1033
Author(s):  
Jianfeng Li ◽  
Yi Long ◽  
Qichao Zhao ◽  
Shupei Zheng ◽  
Zaijin Fang ◽  
...  

Transparent glass-ceramic composites embedded with Ln-fluoride nanocrystals are prepared in this work to enhance the upconversion luminescence of Tm3+. The crystalline phases, microstructures, and photoluminescence properties of samples are carefully investigated. KYb3F10 nanocrystals are proved to controllably precipitate in the glass-ceramics via the inducing of Yb3+ when the doping concentration varies from 0.5 to 1.5 mol%. Pure near-infrared upconversion emissions are observed and the emission intensities are enhanced in the glass-ceramics as compared to in the precursor glass due to the incorporation of Tm3+ into the KYb3F10 crystal structures via substitutions for Yb3+. Furthermore, KYb2F7 crystals are also nano-crystallized in the glass-ceramics when the Yb3+ concentration exceeds 2.0 mol%. The upconversion emission intensity of Tm3+ is further enhanced by seven times as Tm3+ enters the lattice sites of pure KYb2F7 nanocrystals. The designed glass ceramics provide efficient gain materials for optical applications in the biological transmission window. Moreover, the controllable nano-crystallization strategy induced by Yb3+ opens a new way for engineering a wide range of functional nanomaterials with effective incorporation of Ln3+ ions into fluoride crystal structures.


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

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