Strong upconversion emissions in Er3+ doped Y2O3 nanocrystals prepared using a “PMMA-polymerization” route

Optik ◽  
2018 ◽  
Vol 174 ◽  
pp. 125-128
Author(s):  
Ning Xie ◽  
Manting Pei ◽  
Chengguo Ming
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.


2008 ◽  
Vol 31 (2) ◽  
pp. 296-299 ◽  
Author(s):  
Guofeng Wang ◽  
Weiping Qin ◽  
Jisen Zhang ◽  
Jishuang Zhang ◽  
Yan Wang ◽  
...  

2021 ◽  
Vol 9 (39) ◽  
pp. 13841-13850
Author(s):  
Zhen Zhang ◽  
Lingju Guo ◽  
Haiqin Sun ◽  
Dengfeng Peng ◽  
Hua Zou ◽  
...  

Novel self-activated upconversion photochromics exhibit high-performance optical storage properties.


2011 ◽  
Vol 19 (25) ◽  
pp. 25471 ◽  
Author(s):  
Lili Wang ◽  
Zhenyu Liu ◽  
Zhe Chen ◽  
Dan Zhao ◽  
Guanshi Qin ◽  
...  

2018 ◽  
Vol 18 (11) ◽  
pp. 7584-7589 ◽  
Author(s):  
Pengfei Zuo ◽  
Suling Zhao ◽  
Dandan Song ◽  
Bo Qiao ◽  
Zheng Xu ◽  
...  

2015 ◽  
Vol 44 (6) ◽  
pp. 1608-1634 ◽  
Author(s):  
Hao Dong ◽  
Ling-Dong Sun ◽  
Chun-Hua Yan

In this review, the various energy transfer pathways involved in lanthanide-related upconversion emissions are comprehensively discussed.


2012 ◽  
Vol 536 ◽  
pp. 198-203 ◽  
Author(s):  
Yuhua Li ◽  
Baojiu Chen ◽  
Xin Zhao ◽  
Zhiqiang Wang ◽  
Hai Lin

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