Convergent Synthesis of Near‐Infrared Absorbing, “Push–Pull”, Bisthiophene‐Substituted,Zinc(II) Phthalocyanines and their Application in Dye‐Sensitized Solar Cells |
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| Authors: | Mine Ince François Cardinali Jun‐Ho Yum M Victoria Martínez‐Díaz Mohammad K Nazeeruddin Michael Grätzel Tomás Torres |
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| Institution: | 1. Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid (Spain), Fax: (+34)?914973966;2. Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, 1015 Lausanne (Switzerland), Fax: (+41)?21693 4111;3. IMDEA Nanociencia, c/Faraday, 9, Cantoblanco, 28049 Madrid (Spain) |
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| Abstract: | Zinc(II) phthalocyanine dyes that contain triarylamine‐terminated bisthiophene and hexylbisthiophene groups have been synthesized by a convergent approach by using carboxytriiodo–ZnPc as a precursor. Further transformation of the iodo groups by a Pd‐catalyzed reaction allowed easy preparation of further extended π‐conjugated carboxy–ZnPcs. These dyes have been used as sensitizers in dye‐sensitized solar cells, which exhibit a panchromatic response and moderate overall efficiencies. |
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| Keywords: | bisthiophene dye‐sensitized solar cells near‐infrared dyes phthalocyanines |
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