Issue 61, 2017
From the journal:

RSC Advances

A dual-functional NaLuF4:Yb3+/Er3+ material for enhancing photon harvesting in dye-sensitized solar cells

Haiyong Guo,a   Zhen Hu,a   Li Zhao, ORCID logo *a   Li Wan,a   Yadan Wua  and  Shimin Wang*a  

* Corresponding authors

a Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, Faculty of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China
E-mail: zhaoli7376@163.com, shiminwang@126.com

Abstract

A new strategy to improve the efficiency of dye-sensitized solar cells by using the external near-infrared light harvesting and light-scattering dual-functional upconversion (UC) material NaLuF4:Yb3+/Er3+ is proposed. The photoluminescence spectra of NaLuF4:Yb3+/Er3+ showed the emission of green and red light, and these luminescence bands coincided well with the absorption wavelength of N719 dye. A small amount of UC material could serve as a good scattering material in photoelectrodes. The photoelectric conversion efficiency reaches 7.58% at a concentration of 5 wt% of UC (weight ratio of UC to TiO2), which is 27.18% higher than that of P25 photoanode (5.96%) with similar thickness. This finding may be attributed to the UC luminescence and light scattering properties of the UC material.

Graphical abstract: A dual-functional NaLuF4:Yb3+/Er3+ material for enhancing photon harvesting in dye-sensitized solar cells

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Article information

DOI
https://doi.org/10.1039/C7RA06400D
Article type
Paper
Submitted
08 Jun 2017
Accepted
17 Jul 2017
First published
07 Aug 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 38506-38511

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A dual-functional NaLuF4:Yb3+/Er3+ material for enhancing photon harvesting in dye-sensitized solar cells

H. Guo, Z. Hu, L. Zhao, L. Wan, Y. Wu and S. Wang, RSC Adv., 2017, 7, 38506 DOI: 10.1039/C7RA06400D

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