Issue 15, 2013
From the journal:

Journal of Materials Chemistry A

Improvement of spectral response by co-sensitizers for high efficiency dye-sensitized solar cells

Shufang Zhang,a   Ashraful Islam,a   Xudong Yang,a   Chuanjiang Qin,a   Kun Zhang,a   Youhei Numata,a   Han Chenb  and  Liyuan Han*ab  

* Corresponding authors

a Photovoltaic Materials Unit, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
E-mail: HAN.liyuan@nims.go.jp
Fax: +81 298592304
Tel: +81 298592747

b State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dong Chuan RD. Minhang District, Shanghai 200240, China

Abstract

Simple donor–π–acceptor organic dyes, denoted as HC3, HC4, and HC5, were synthesized as co-sensitizers for black dye based dye-sensitized solar cells. By tuning the electron-donating moieties and side alkyl chain lengths of the co-sensitizers, the spectral photoresponse was greatly enhanced from the UV to the entire visible region. The short circuit current density was significantly improved by 8.5% in the BD + HC5 cell with respect to the cell with BD only, and consequently a high efficiency of 11.6% was achieved.

Graphical abstract: Improvement of spectral response by co-sensitizers for high efficiency dye-sensitized solar cells

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Article information

DOI
https://doi.org/10.1039/C3TA01043K
Article type
Paper
Submitted
09 Nov 2012
Accepted
05 Feb 2013
First published
06 Feb 2013

J. Mater. Chem. A, 2013,1, 4812-4819

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Improvement of spectral response by co-sensitizers for high efficiency dye-sensitized solar cells

S. Zhang, A. Islam, X. Yang, C. Qin, K. Zhang, Y. Numata, H. Chen and L. Han, J. Mater. Chem. A, 2013, 1, 4812 DOI: 10.1039/C3TA01043K

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