New Ruthenium Sensitizer with Carbazole Antennas for Efficient and Stable Thin-Film Dye-Sensitized Solar Cells
Chen, C.Y.; Pootrakulchote, N.; Wu, S.J.; Wang, M.K.; Li, J.Y.; Tsai, J.H.; Wu, C.G.; Zakeeruddin, S.M.; Graetzel, M.
2009

Abstract

A new heteroleptic ruthenium complex, coded CYC-B13, incorporating an antenna ligand composed of the sequential connection of a Conjugated segment and carbazole hole-transport moiety was prepared. This new sensitizer exhibits the lower energy MLCT band centered at 547 rim with a high molar absorption coefficient of 1.93 x 10(4) M-1 cm(-1). Thin-film cells based on this new sensitizer show good conversion efficiency (>8%) and excellent durability under light soaking at 60 degrees C in simulated sunlight for 1000 h. An all-solid state device based on CYC-B13 is also demonstrated to have a conversion efficiency of 3.8%. The photovoltaic data of DSCs sensitized with CYC-B13 suggested that carbazole is a photostable hole-transporting moiety to be used in dye-sensitized solar cells.

Details

Title New Ruthenium Sensitizer with Carbazole Antennas for Efficient and Stable Thin-Film Dye-Sensitized Solar Cells
Author(s) Chen, C.Y. ; Pootrakulchote, N. ; Wu, S.J. ; Wang, M.K. ; Li, J.Y. ; Tsai, J.H. ; Wu, C.G. ; Zakeeruddin, S.M. ; Graetzel, M.
Published in Journal of Physical Chemistry C
Volume 113
Issue 48
Pages 20752-20757
Date 2009
Keywords
DOI https://doi.org/10.1021/jp9089084
Other identifier(s) View record in Web of Science
Laboratories LPI
Record Appears in Scientific production and competences > SB - School of Basic Sciences > ISIC - Institute of Chemical Sciences and Engineering > LPI - Laboratory of Photonics and Interfaces
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date 2009-12-23

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