Title :
Probing coherent ultrafast exciton dissociation in a polymer: Fullerene photovoltaic absorber
Author :
De Sio, Antonietta ; Sommer, Ephraim ; Maiuri, Margherita ; Rehault, Julien ; Rozzi, Carlo Andrea ; Molinari, Elisa ; Cerullo, Giulio ; Lienau, Christoph
Author_Institution :
Inst. fur Phys., Carl von Ossietzky Univ., Oldenburg, Germany
Abstract :
Combining high-time resolution optical spectroscopy and time-dependent density functional theory calculations, we provide strong evidence for the role of vibronic coupling in driving the initial steps of the current photogeneration in an organic photovoltaic system.
Keywords :
density functional theory; excitons; fullerene compounds; high-speed optical techniques; light coherence; optical polymers; solar absorber-convertors; coherent ultrafast exciton dissociation; current photogeneration; high-time resolution optical spectroscopy; organic photovoltaic system; polymer-fullerene photovoltaic absorber; time-dependent density functional theory; vibronic coupling; Absorption; Charge transfer; Couplings; Excitons; Oscillators; Photovoltaic systems; Polymers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
