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Preparation and Photoluminescent Properties of Ce3+, Yb3+ Co-Doped YF3 Nanophosphors for Solar Cells

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Abstract:

An efficient near-infrared (NIR) quantum cutting (QC) nanophospors with Ce3+, Yb3+ co-doped in YF3 had been prepared by hydrothermal method and characterized by X-ray powder diffraction (XRD), scanning electron microscope (SEM), photoluminescence spectra and decay dynamics. The obtained nanorods were uniform and monodisperse. Under the excitation of 5d level of Ce3+, an intense NIR emission at 900 1100 nm was observed which match to the energy of Si band gap of Si - based solar cells. In the Ce3+, Yb3+ codoped YF3, the lifetime of Ce3+ decreases and the quantum efficiency (QE) increases with increasing Yb3+ concentration.

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Periodical:

Applied Mechanics and Materials (Volume 508)

Pages:

26-29

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.508.26

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Online since:

January 2014

Authors:

Su Wen Li*, Ming Yue

Keywords:

Naophosphors, Near-Infrared Quantum Cutting, Photoluminescent Properties

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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