Issue 1, 2011

Increasing the efficiency of zinc-phthalocyanine based solar cells through modification of the anchoring ligand

Abstract

Several zinc-based phthalocyanines have been synthesized and used in Dye-Sensitized Solar Cells (DSSC). The results have been compared with the standard TT1 phthalocyanine, which shows good light-to-energy conversion efficiencies in comparison with other IR sensitizers used in DSSC. We show herein that the anchoring moiety is critical for both achieving high injection yields and slow back electron transfer dynamics that affect the overall device efficiency. Moreover, based on these results, we have synthesized a new phthalocyanine with a superior performance, when compared to the TT1 dye, with a subtle change on the anchoring moiety, thus leading to a higher photocurrent response.

Graphical abstract: Increasing the efficiency of zinc-phthalocyanine based solar cells through modification of the anchoring ligand

Supplementary files

Article information

Article type
Paper
Submitted
18 Aug 2010
Accepted
05 Oct 2010
First published
11 Nov 2010

Energy Environ. Sci., 2011,4, 189-194

Increasing the efficiency of zinc-phthalocyanine based solar cells through modification of the anchoring ligand

M. García-Iglesias, J. Cid, J. Yum, A. Forneli, P. Vázquez, M. K. Nazeeruddin, E. Palomares, M. Grätzel and T. Torres, Energy Environ. Sci., 2011, 4, 189 DOI: 10.1039/C0EE00368A

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