Thiocyanate-free cyclometalated ruthenium sensitizers for solar cells based on heteroaromatic-substituted 2-arylpyridines

Alessandro Abbotto; Carmine Coluccini; Elisa Dell'Orto; Norberto Manfredi; Vanira Trifiletti; Matteo M. Salamone; Riccardo Ruffo; Maurizio Acciarri; Alessia Colombo; Claudia Dragonetti; Stefania Ordanini; Dominique Roberto; Adriana Valore

doi:10.1039/C2DT31551C

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Dalton Transactions

Issue 38, 2012

The international journal for inorganic, organometallic and bioinorganic chemistry

Impact Factor 3.838 48 Issues per Year Indexed in MEDLINE

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Thiocyanate-free cyclometalated ruthenium sensitizers for solar cells based on heteroaromatic-substituted 2-arylpyridines

Alessandro Abbotto,*^a^c Carmine Coluccini,^a Elisa Dell'Orto,^a Norberto Manfredi,^a Vanira Trifiletti,^a Matteo M. Salamone,^a Riccardo Ruffo,^a Maurizio Acciarri,^a Alessia Colombo,^b Claudia Dragonetti,^b Stefania Ordanini,^b Dominique Roberto*^b^c and Adriana Valore^c

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Milano-Bicocca Solar Energy Research Center – MIB-Solar, Department of Materials Science, Via Cozzi 53, Milano, Italy
E-mail: alessandro.abbotto@mater.unimib.it ;
Fax: +39 02 64485400 ;
Tel: +39 02 64485227

Dipartimento di Chimica Inorganica, Metallorganica e Analitica “Lamberto Malatesta” dell'Università degli Studi di Milano, UdR di Milano dell'INSTM, Milano, Italy
E-mail: dominique.roberto@unimib.it

Istituto di Scienze e Tecnologie Molecolari del CNR, Via Venezian 21, I-20133 Milano, Italy

Dalton Trans., 2012,41, 11731-11738

DOI: 10.1039/C2DT31551C
Received 24 Feb 2012, Accepted 26 Jul 2012
First published online 30 Jul 2012

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The first examples of thiocyanate-free thiophene-substituted Ru(II) cyclometalated complexes, based on thiophene-derived 2-(2,4-difluorophenyl)pyridine ligands, are presented and investigated as photosensitizers in DSCs. Upon thiophene substitution the complexes presented enhanced optical properties compared to the reference dye with no thiophene substitution. DSCs based on the dithienyl-derived dye showed power conversion efficiencies up to 5.7%, more than twice that containing the complex without the thiophene substitution.

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Thiocyanate-free cyclometalated ruthenium sensitizers for solar cells based on heteroaromatic-substituted 2-arylpyridines

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Thiocyanate-free cyclometalated ruthenium sensitizers for solar cells based on heteroaromatic-substituted 2-arylpyridines

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