The effect of selective interactions at the interface of polymer-oxide hybrid solar cells (Articolo in rivista)

Type
Label
  • The effect of selective interactions at the interface of polymer-oxide hybrid solar cells (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1039/c2ee22212d (literal)
Alternative label
  • Canesi, EV (Canesi, Eleonora V.)1; Binda, M (Binda, Maddalena)1; Abate, A (Abate, Antonio)4; Guarnera, S (Guarnera, Simone)1,2,3; Moretti, L (Moretti, Luca)1; D'Innocenzo, V (D'Innocenzo, Valerio)1; Kumar, RSS (Kumar, R. Sai Santosh)1; Bertarelli, C (Bertarelli, Chiara)1,10; Abrusci, A (Abrusci, Agnese)4; Snaith, H (Snaith, Henry)4; Calloni, A (Calloni, Alberto)2,3; Brambilla, A (Brambilla, Alberto)2,3; Ciccacci, F (Ciccacci, Franco)2,3; Aghion, S (Aghion, Stefano)5,6,7; Moia, F (Moia, Fabio)5,6,7; Ferragut, R (Ferragut, Rafael)5,6,7; Melis, C (Melis, Claudio)8,9; Malloci, G (Malloci, Giuliano)8; Mattoni, A (Mattoni, Alessandro)8; Lanzani, G (Lanzani, Guglielmo)1; Petrozza, A (Petrozza, Annamaria)1 (2012)
    The effect of selective interactions at the interface of polymer-oxide hybrid solar cells
    in Energy & environmental science (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Canesi, EV (Canesi, Eleonora V.)1; Binda, M (Binda, Maddalena)1; Abate, A (Abate, Antonio)4; Guarnera, S (Guarnera, Simone)1,2,3; Moretti, L (Moretti, Luca)1; D'Innocenzo, V (D'Innocenzo, Valerio)1; Kumar, RSS (Kumar, R. Sai Santosh)1; Bertarelli, C (Bertarelli, Chiara)1,10; Abrusci, A (Abrusci, Agnese)4; Snaith, H (Snaith, Henry)4; Calloni, A (Calloni, Alberto)2,3; Brambilla, A (Brambilla, Alberto)2,3; Ciccacci, F (Ciccacci, Franco)2,3; Aghion, S (Aghion, Stefano)5,6,7; Moia, F (Moia, Fabio)5,6,7; Ferragut, R (Ferragut, Rafael)5,6,7; Melis, C (Melis, Claudio)8,9; Malloci, G (Malloci, Giuliano)8; Mattoni, A (Mattoni, Alessandro)8; Lanzani, G (Lanzani, Guglielmo)1; Petrozza, A (Petrozza, Annamaria)1 (literal)
Pagina inizio
  • 9068 (literal)
Pagina fine
  • 9076 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 5 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 9 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. Ist Italiano Tecnol, Ctr Nano Sci & Technol Polimi, I-20133 Milan, Italy 2. Politecn Milan, CNISM, I-20133 Milan, Italy 3. Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy 4. Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England 5. Politecn Milan, Dipartimento Fis, LNESS, I-22100 Como, Italy 6. Politecn Milan, Dipartimento Fis, CNISM, I-22100 Como, Italy 7. Ist Nazl Fis Nucl, I-20133 Milan, Italy 8. Ist Off Mat CNR IOM, Unita SLACS Cagliari, I-09042 Monserrato, Ca, Italy 9. Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, Ca, Italy 10. Politecn Milan, Dipartimento Chim Mat & Ing Chim G Natta, I-20133 Milan, Italy (literal)
Titolo
  • The effect of selective interactions at the interface of polymer-oxide hybrid solar cells (literal)
Abstract
  • The working mechanisms of excitonic solar cells are strongly dominated by interface processes, which influence the final device efficiency. However, it is still very challenging to clearly track the effects of inter-molecular processes at a mesoscopic level. We report on the realization of polymer-based hybrid solar cells made of prototypical materials, namely, poly(3-hexylthiophene) (P3HT) finely infiltrated in a TiO2 scaffold, with power conversion efficiency exceeding 1%. A step-change improvement in the device performance is enabled by engineering the hybrid interface by the insertion of an appropriate molecular interlayer. An unprecedented set of characterization techniques, including time-resolved optical spectroscopy, X-ray photoemission spectroscopy, positron annihilation spectroscopy and atomistic simulations, allows us to rationalize our findings. We show that a suitable chemical structure of the interlayer molecule induces selective intermolecular interactions, and thus a preferential surface energetic landscape and morphological order at the interface which consequently drives a strong improvement in charge generation and a decrease in recombination losses. (literal)
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