NEW METAL ACETYLIDE DONOR COMPLEXES FOR BULK-HETEROJUNCTION SOLAR CELLS (Abstract/Poster in convegno)

Type
Label
  • NEW METAL ACETYLIDE DONOR COMPLEXES FOR BULK-HETEROJUNCTION SOLAR CELLS (Abstract/Poster in convegno) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Alternative label
  • Filippo Nisic (a); Alessia Colombo(a); Claudia Dragonetti(a); Dominique Roberto(a,b); Arianna Valsecchi(a), Silvia Luzzati(c), Dariusz Kotowski(c). (2012)
    NEW METAL ACETYLIDE DONOR COMPLEXES FOR BULK-HETEROJUNCTION SOLAR CELLS
    in Second International Meeting on Organic Materials for a better future FUTURMAT 2 (Design, Synthesis and Properties of organic compounds for solar energy, lighting and bio-medical applications, Riva Marina Resort, Puglia, 16-20 Settembre 2012
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Filippo Nisic (a); Alessia Colombo(a); Claudia Dragonetti(a); Dominique Roberto(a,b); Arianna Valsecchi(a), Silvia Luzzati(c), Dariusz Kotowski(c). (literal)
Note
  • Abstract (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a.Dipartimento di Chimica dell' Università degli Studi di Milano and UdR INSTM di Milano, via Venezian 21, 20133 Milano, Italy b ISTM del CNR, via Golgi 19, 20133 Milano, Italy c ISMAC-CNR, V. Bassini 15, 20133 Milano, Italy (literal)
Titolo
  • NEW METAL ACETYLIDE DONOR COMPLEXES FOR BULK-HETEROJUNCTION SOLAR CELLS (literal)
Abstract
  • Conjugated polymers and oligomers have received a lot of attention as active materials for organic photovoltaic devices because of their potential for the development of plastic solar cells that are lightweight, flexible, and low cost. Bulk heterojunctions fabricated by blending polymers with fullerene derivative have resulted in great improvements in the polymer photovoltaic cell efficiencies. However, to produce highly efficient organic photovoltaic devices, it is necessary to extend the light absorption into the near-infrared region and at the same time preserve the high IPCE and open-circuit voltage. Several papers have been recently dedicated to the investigation of the use of conjugated polymers incorporating heavy atoms; in particular Pt acetylide polymers as donors in solar cells using PCBM as acceptor 1 were proposed as a tool to enhance charge photogeneration. For instance, Mei et al. reported on a Pt acetylide-based polymer using a 2,1,3-benzothiadiazole (BTD) acceptor moiety flanked on either side by 2,5-thienyl (Th) donor units ([-Pt(L2)-t-Th-BTD-Th-t-]n, where L = PBu3), which absorbs strongly throughout the visible region 2. Recently we found that the use of Ru acetylides is a novel interesting tool for the design of donor materials 3 to combine with electron-withdrawing fullerides in bulk heterojunction solar cells. New dinuclear Ru(II) complexes where two Ru atoms are separated by a bridge consisting of a 2,1,3 benzothiadiazole acceptor moiety flanked on either side by 2,5-thienyl or 3-hexyl substituted 2,5-thienyl donor units were synthesized, along with related Pt(II) complexes (Figure). Here we present their behavior as photoactive donors when blended with a fullerene as acceptor, in bulk heterojunction solar cells. References. (1) W.-Y. Wong, C.-L. Ho, Acc. Chem. Res. 2010, 43, 1246. (2) J. Mei, et al. Appl. Mater. Interfaces 1 2009, 150. (3) A. Colombo, C. Dragonetti, D. Roberto, R. Ugo, L. Falciola, S. Luzzati, and D. Kotowski Organometallics 2011, 30, 1279. (literal)
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