title: Photoinduced electron transfer in thin films of porphyrin-fullerene dyad and perylenetetracarboxidiimide.
abstract: Photoinduced intra- and intermolecular electron transfer (ET) in thin films of porphyrin-fullerene dyad (P-F) and perylenetetracarboxidiimide (PTCDI) was studied by means of photoelectrical and spectroscopic methods. Films consisting of smooth 100 mol% layers of P-F and PTCDI were prepared by the Langmuir-Schäfer (LS) technique and thermal evaporation, respectively. The time-resolved Maxwell displacement charge (TRMDC) and laser flash-photolysis methods were utilized to demonstrate photoinduced ET from P-F to PTCDI regardless of which chromophore is photoexcited. Finally, the information about the electron movement in the respective thin films was used to build a layered organic solar cell, whose internal quantum yield (Φ(I)) of collected charges was 13%.
authors: Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FI-33101 Tampere, Finland. paola.vivo@tut.fi
authors: Paola
authors: P
authors: Vivo
authors: Alexander S
authors: AS
authors: Alekseev
authors: Kimmo
authors: K
authors: Kaunisto
authors: Oili
authors: O
authors: Pekkola
authors: Antti
authors: A
authors: Tolkki
authors: Vladimir
authors: V
authors: Chukharev
authors: Alexander
authors: A
authors: Efimov
authors: Petri
authors: P
authors: Ihalainen
authors: Jouko
authors: J
authors: Peltonen
authors: Helge
authors: H
authors: Lemmetyinen