Photoinduced charge separation in organic-inorganic hybrid system: C60-containing electropolymer / CdSe-quantum dots

OTERO, M.AD, DITTRICH, T.A, RAPPICH, J.B, HEREDIA, D.A.C, FUNGO, F.C, DURANTINI, E.C, OTERO, L.C

ELECTROCHIMICA ACTA

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2015 vol. 173 p. 316 - 322

0013-4686

A photoactive interface is formed between an electrochemical generated organic polymerfilm and CdSe quantum dots. The specifically designed and synthesized 3,4 ethylenedioxythiophene electroactive monomer, holding C60 buckminsterfullerene, allows the formation of thin films containing both, electron acceptor and hole transport moieties. The generation of photoinduced heterogeneous charge transfer in CdSe quantum dots-electropolymer system was characterized by time resolved and spectral dependentsurface photovoltage. In films containing C60 moieties whose surface was modified with 5 nm CdSe quantum dots, the illumination generated photovoltage values around twenty times larger than those obtained without nanoparticles decoration. The results show that this organic-inorganic hybrid interface is a potential structure for the development of optoelectronic devices.