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Issue 18, 2014
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Panchromatic light harvesting by N719 with a porphyrin molecule for high-performance dye-sensitized solar cells

Shuai Chang,a  Hongda Wang,b  Lawrence Tien Lin Lee,a  Shizhao Zheng,a  Quan Li,a  King Young Wong,a  Wai-Kwok Wong,b  Xunjin Zhu,*b  Wai-Yeung Wong,*b  Xudong Xiao*a  and  Tao Chen*a 
Author affiliations

* Corresponding authors

a Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, China
E-mail: taochen@phy.cuhk.edu.hk, xdxiao@phy.cuhk.edu.hk
Fax: +852-2603 5204
Tel: +852-3943 6278

b Institute of Molecular Functional Materials, Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, China
E-mail: rwywong@hkbu.edu.hk, xjzhu@hkbu.edu.hk
Fax: +852-3411 7048
Tel: +852-3411 5157

Abstract

We report efficient panchromatic light harvesting by co-adsorption of a porphyrin molecule and N719 in dye-sensitized solar cells. The co-sensitized device shows a considerably enhanced power conversion efficiency of 8.89%, while those individually sensitized by porphyrin and N719 display efficiencies of 7.21% and 8.02%, respectively. The porphyrin-sensitized device shows strong photocurrent generation in the Soret and Q bands, while N719 shows efficient spectral response in the 500–600 nm range; the combination of these two kinds of dye molecules displays a strong spectral response in the full-colour region. Mechanistic investigations are carried out by various spectral and electrochemical characterizations.

Graphical abstract: Panchromatic light harvesting by N719 with a porphyrin molecule for high-performance dye-sensitized solar cells

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Publication details

The article was received on 07 Nov 2013, accepted on 05 Mar 2014 and first published on 06 Mar 2014


Article type: Communication
DOI: 10.1039/C3TC32191F
Citation: J. Mater. Chem. C, 2014,2, 3521-3526
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    Panchromatic light harvesting by N719 with a porphyrin molecule for high-performance dye-sensitized solar cells

    S. Chang, H. Wang, L. T. Lin Lee, S. Zheng, Q. Li, K. Y. Wong, W. Wong, X. Zhu, W. Wong, X. Xiao and T. Chen, J. Mater. Chem. C, 2014, 2, 3521
    DOI: 10.1039/C3TC32191F

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