Co-sensitized DSCs: dye selection criteria for optimized device Voc and efficiency

John N. Clifford; Amparo Forneli; Huajie Chen; Tomas Torres; Songting Tan; Emilio Palomares

doi:10.1039/C0JM03661G

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Co-sensitized DSCs: dye selection criteria for optimized device V_oc and efficiency†

John N. Clifford,^a Amparo Forneli,^a Huajie Chen,^b Tomas Torres,^c Songting Tan^b and Emilio Palomares*^ad

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* Corresponding authors

^a Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans, 16, Tarragona, Spain
E-mail: epalomares@iciq.es
Fax: +34 977 920 224
Tel: +34 977 920 241

^b College of Chemistry, Xiangting University, Xiangting, China
E-mail: tanst2008@163.com

^c Departamento de Química, Orgánica, Universidad Autónoma de Madrid (UAM), Madrid, Spain
E-mail: tomas.torres@uam.es
Fax: +34 914 973 966
Tel: Tel: +34 914 974 151

^d ICREA, Passeig Lluís Companys 28, Barcelona, Spain

Abstract

Co-sensitization of nanocrystalline TiO₂ with the organic dye D2 and the zinc phthalocyanine dye TT1 improves light harvesting, J_sc and efficiency of DSC devices. However, the V_oc of the co-sensitized cell is markedly inferior (∼130 mV) when compared to the reference device made with D2 only. We discuss the implications of our results with regard to selection criteria for dyes for co-sensitized DSCs.

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Article information

DOI: https://doi.org/10.1039/C0JM03661G
Article type: Communication
Submitted: 27 Oct 2010
Accepted: 02 Dec 2010
First published: 22 Dec 2010

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J. Mater. Chem., 2011,21, 1693-1696

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Co-sensitized DSCs: dye selection criteria for optimized device V_oc and efficiency

J. N. Clifford, A. Forneli, H. Chen, T. Torres, S. Tan and E. Palomares, J. Mater. Chem., 2011, 21, 1693 DOI: 10.1039/C0JM03661G

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Journal of Materials Chemistry