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  4. Porphyrin Sensitizers Bearing a Pyridine-Type Anchoring Group for Dye-Sensitized Solar Cells
 
research article

Porphyrin Sensitizers Bearing a Pyridine-Type Anchoring Group for Dye-Sensitized Solar Cells

Mai, Chi-Lun
•
Moehl, Thomas  
•
Hsieh, Chi-Hung
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2015
ACS Applied Materials & Interfaces

Three novel efficient donor-acceptor porphyrins, MH1-MH3, with a pyridine-type acceptor and anchoring group were synthesized and their optical, electrochemical, and photovoltaic properties investigated. Replacing the commonly used 4-carboxyphenyl anchoring group with 2-carboxypyridine, 2-pyridone, and pyridine did not significantly change the absorption and electrochemical properties of the porphyrin dyes. These new porphyrin dyes MH show power conversion efficiencies of 8.3%, 8.5%, and 8.2%, which are comparable to that of the benchmark YD2-o-C8 (eta = 8.25%) under similar conditions. It was demonstrated that 2-carboxypyridine is an efficient and stable anchoring group as MH1 and showed better cell performance and long-term stability than YD2-o-C8 under light soaking conditions.

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Type
research article
DOI
10.1021/acsami.5b03783
Web of Science ID

WOS:000358395200053

Author(s)
Mai, Chi-Lun
Moehl, Thomas  
Hsieh, Chi-Hung
Decoppet, Jean-David  
Zakeeruddin, Shaik M.  
Graetzel, Michael  
Yeh, Chen-Yu
Date Issued

2015

Publisher

Amer Chemical Soc

Published in
ACS Applied Materials & Interfaces
Volume

7

Issue

27

Start page

14975

End page

14982

Subjects

porphyrin

•

2-carboxypyridine

•

2-pyridone

•

pyridine

•

dye-sensitized solar cell

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPI  
Available on Infoscience
September 28, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/118931
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