Issue 48, 2013
From the journal:

Journal of Materials Chemistry C

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

Jiajia Zhou,ab   Junyong Deng,c   Haomiao Zhu,d   Xueyuan Chen,d   Yu Teng,a   Hong Jia,a   Shiqing Xub  and  Jianrong Qiu*ac  

* Corresponding authors

a State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
E-mail: qjr@zju.edu.cn

b College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China

c State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China

d Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China

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

DOI
https://doi.org/10.1039/C3TC31581A
Article type
Paper
Submitted
12 Aug 2013
Accepted
16 Sep 2013
First published
17 Sep 2013

J. Mater. Chem. C, 2013,1, 8023-8027

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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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