Journal
RSC ADVANCES
Volume 8, Issue 41, Pages 23268-23273Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra04154g
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Funding
- National Natural Science Foundation of China [51675162, 61775052, 61205086]
- Education Department Project of Henan Province [18B150005]
- Open Research Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences [SKLST201203]
- Foundation for University Key Teacher of Henan Province [2013071]
- Natural Science Fund of Education Department of Shaanxi Provincial Government [16JK1018]
- Ankang University [2016AYQDZR05, 2017AYJC01]
- Key Project of Industrial Science and Technology of Shaanxi Province [2016GY-196]
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Ce3+-Yb3+ co-doped transparent glass ceramics containing YAG nanocrystals were prepared by a conventional melt-quenching method. Broadband near infrared quantum cutting was achieved in the glass ceramics and proved to be a cooperative down-conversion process. Under 460 nm excitation, F-2(5/2) to 5d(1) electronic transitions occurred in Ce3+ and transferred their energy to two neighboring Yb3+. The dependence of the luminescence spectra and decay curves on Yb3+ concentration was investigated to understand the energy transfer mechanism. The energy transfer efficiency and the down-conversion quantum efficiency were estimated to be as high as 77.8% and 177.8%, respectively. This work will open a new route towards increased efficiency in silicon solar cells.
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