Issue 3, 2013
From the journal:

Journal of Materials Chemistry A

Fluoro-functionalization of vinylene units in a polyarylenevinylene for polymer solar cells†

Antonio Cardone,a   Carmela Martinelli,a   Maria Losurdo,b   Elena Dilonardo,b   Giovanni Bruno,b   Guido Scavia,c   Silvia Destri,c   Pinalysa Cosma,d   Luigi Salamandra,e   Andrea Reale,e   Aldo Di Carlo,e   Aranzazu Aguirre,f   Begoña Milián-Medina,f   Johannes Gierschnerf  and  Gianluca M. Farinola*d  

* Corresponding authors

a Istituto di Chimica dei Composti OrganoMetallici (ICCOM) di Bari, Consiglio Nazionale delle Ricerche (CNR), Via Orabona 4, 70125 Bari, Italy
E-mail: cardone@ba.iccom.cnr.it, mrcr01ch@uniba.it

b Istituto per le Metodologie Inorganiche e dei Plasmi (IMIP) di Bari, Consiglio Nazionale delle Ricerche (CNR), Via Orabona 4, 70125 Bari, Italy
E-mail: maria.losurdo@ba.imip.cnr.it, dlln01ch@uniba.it, giovanni.bruno@ba.imip.cnr.it

c Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via Bassini, 15, 20133 Milano, Italy
E-mail: scavia@ismac.cnr.it, destri@ismac.cnr.it

d Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona, 4, 70125 Bari, Italy
E-mail: p.cosma@chimica.uniba.it, gianlucamaria.farinola@uniba.it

e Electronic Engineering Department, University of Rome Tor Vergata, Via del Politecnico, 1, 00133 Rome, Italy
E-mail: luigi.salamandra@uniroma2.it, reale@uniroma2.it, aldo.dicarlo@uniroma2.it

f Madrid Institute for Advanced Studies, IMDEA Nanoscience, Calle Faraday 9, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
E-mail: johannes.gierschner@imdea.org, begona.milian@imdea.org, aranzazu.aguirre@imdea.org

Abstract

A low band-gap copolymer PDTBTFV alternating bis-thienyl-(bis-alkoxy)-benzothiadiazole blocks with difluorovinylene units and its non-fluorinated counterpart PDTBTV have been synthesized and characterized as donor materials in bulk heterojunction (BHJ) solar cells with PCBM as the acceptor. The solar cells with the fluorinated polymer show better photovoltaic performances than those recorded with the non-fluorinated material. Comparative spectroscopic and computational studies, together with morphological, electrical and optical characterization of thin films, have been carried out to shed light on the reasons for the improvement of performances as induced by the double bond fluorination. Our study introduces the fluorinated double bond as a new conjugated unit in donor polymers for BHJ solar cells.

Graphical abstract: Fluoro-functionalization of vinylene units in a polyarylenevinylene for polymer solar cells

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Article information

DOI
https://doi.org/10.1039/C2TA00177B
Article type
Paper
Submitted
03 Sep 2012
Accepted
12 Oct 2012
First published
15 Oct 2012

J. Mater. Chem. A, 2013,1, 715-727

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Fluoro-functionalization of vinylene units in a polyarylenevinylene for polymer solar cells

A. Cardone, C. Martinelli, M. Losurdo, E. Dilonardo, G. Bruno, G. Scavia, S. Destri, P. Cosma, L. Salamandra, A. Reale, A. Di Carlo, A. Aguirre, B. Milián-Medina, J. Gierschner and G. M. Farinola, J. Mater. Chem. A, 2013, 1, 715 DOI: 10.1039/C2TA00177B

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