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

Shuai Chang; Hongda Wang; Lawrence Tien Lin Lee; Shizhao Zheng; Quan Li; King Young Wong; Wai-Kwok Wong; Xunjin Zhu; Wai-Yeung Wong; Xudong Xiao; Tao Chen

doi:10.1039/C3TC32191F

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.

Journal of Materials Chemistry C

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

Abstract

Supplementary files

Article information

Download Citation

Permissions

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

Social activity

Search articles by author

Spotlight

Advertisements