Journal
CURRENT APPLIED PHYSICS
Volume 14, Issue 8, Pages 1028-1030Publisher
ELSEVIER
DOI: 10.1016/j.cap.2014.05.012
Keywords
Yb/Pr-codoped; Quantum cutting; Efficiency
Funding
- National Natural Science Foundation of China [11274180, 61107068, 11304225]
- Scientific Research Project of Tianjin Educational Committee [20120906]
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Cutting one ultraviolet photon into three near-infrared (NIR) photons can effectively improve the efficiency of silicon solar cells. We prepared Yb-doped, Pr-doped, and Yb/Pr-codoped NaY(WO4)(2) (NYW) crystals. The Yb/Pr-codoped sample can divide the ultraviolet and blue photons into similar to 1000 nm NIR photons, which brings strong emission at the NIR wavelength range. On the basis of the luminescence spectra and lifetime analysis, the quantum efficiency of the material is higher. (C) 2014 Elsevier B.V. All rights reserved.
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