Ultrabright single-band red upconversion luminescence in highly transparent fluorosilicate glass ceramics containing KMnF 3 perovskite nanocrystals

With a specially designed composition, highly transparent Yb /Er -doped fluorosilicate glass ceramic (GC) containing KMnF perovskite nanocrystals (NCs) is obtained for the first time. The rare-earth ions are preferentially accumulated in regions embedded with KMnF NCs; as a result, a remarkably enha...

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Bibliographic Details
Published in:Optics letters 2019-06, Vol.44 (12), p.2959
Main Authors: Gao, Zhigang, Lu, Kailei, Lu, Xiaosong, Li, Xiaobo, Han, Zhenyuan, Guo, Shu, Liu, Lu, He, Fei, Yang, Piaoping, Ren, Jing, Zhang, Jianzhong, Yang, Jun
Format: Article
Language:English
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Summary:With a specially designed composition, highly transparent Yb /Er -doped fluorosilicate glass ceramic (GC) containing KMnF perovskite nanocrystals (NCs) is obtained for the first time. The rare-earth ions are preferentially accumulated in regions embedded with KMnF NCs; as a result, a remarkably enhanced (by an order of magnitude) single-band red upconversion luminescence (UCL) is achieved. Absolute quantum efficiency of the red UCL, which cannot be measured in previous GCs owing to insufficiency, reaches as high as 0.10%±0.02% in the GC sample reported in this Letter. This value is even higher than that of the well-known multiband emitting β-NaYF :Er /Yb NCs and widely recognized GCs containing NaYF :Yb /Er NCs.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.44.002959