Issue 36, 2012
From the journal:

Journal of Materials Chemistry

One bipyridine and triple advantages: tailoring ancillary ligands in ruthenium complexes for efficient sensitization in dye solar cells†

M. Chandrasekharam,*a   M. Anil Reddy,a   Surya P. Singh,a   B. Priyanka,a   K. Bhanuprakash,a   M. Lakshmi Kantam,a   A. Islamb  and  L. Hanb  

* Corresponding authors

a Network of Institutes for Solar Energy, CSIR-Indian Institute of Chemical Technology, I&PC Division, Uppal Road, Tarnaka, Hyderabad-500 607, India
E-mail: chandra@iict.res.in
Fax: +91 4027193186
Tel: +91 4027193186

b Photovoltaic Materials Unit, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan

Abstract

Four new ruthenium bipyridyl complexes denoted as MC103–MC106, with novel unsymmetrical bipyridines as ancillary ligands have been successfully synthesized as efficient sensitizers for application in dye-sensitized solar cells (DSC). The spectral, electrochemical and photovoltaic properties of the new sensitizers have been investigated. Alkyl thiophene/alkyl bithiophene and trialkyl phenyl as substituents on ancillary ligands improved the spectral properties and hence better efficiencies of DSCs are achieved. The higher efficiencies of the new sensitizers obtained are 9.56%, 9.58%, 8.34% and 8.32%, respectively, compared to 7.2% for the standard N719 sensitizer fabricated and evaluated under similar conditions.

Graphical abstract: One bipyridine and triple advantages: tailoring ancillary ligands in ruthenium complexes for efficient sensitization in dye solar cells

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Article information

DOI
https://doi.org/10.1039/C2JM34558G
Article type
Communication
Submitted
12 Jul 2012
Accepted
31 Jul 2012
First published
02 Aug 2012

J. Mater. Chem., 2012,22, 18757-18760

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One bipyridine and triple advantages: tailoring ancillary ligands in ruthenium complexes for efficient sensitization in dye solar cells

M. Chandrasekharam, M. A. Reddy, S. P. Singh, B. Priyanka, K. Bhanuprakash, M. L. Kantam, A. Islam and L. Han, J. Mater. Chem., 2012, 22, 18757 DOI: 10.1039/C2JM34558G

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