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Issue 48, 2013
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Up-conversion luminescence in LaF3:Ho3+via two-wavelength excitation for use in solar cells

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Abstract

An efficient broadband excited near-infrared to visible up-conversion is observed in LaF3:Ho3+ as the result of a two-wavelength excitation. The visible up-conversion emission intensity is greatly enhanced upon simultaneous excitation at 970 nm and 1150 nm, due to an energy transfer up-conversion mechanism. Multi-wavelength excitation based on the ground-state absorption, excited-state absorption, and phonon-coupled absorption of rare-earth ions results in an efficient broadband excited up-conversion emission, which may provide a new approach to fully harvest NIR solar energy and has potential application in solar cells.

Graphical abstract: Up-conversion luminescence in LaF3:Ho3+via two-wavelength excitation for use in solar cells

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Article information


Submitted
12 Aug 2013
Accepted
16 Sep 2013
First published
17 Sep 2013

J. Mater. Chem. C, 2013,1, 8023-8027
Article type
Paper

Up-conversion luminescence in LaF3:Ho3+via two-wavelength excitation for use in solar cells

J. Zhou, J. Deng, H. Zhu, X. Chen, Y. Teng, H. Jia, S. Xu and J. Qiu, J. Mater. Chem. C, 2013, 1, 8023
DOI: 10.1039/C3TC31581A

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