English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/94959
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 97 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Quantum coherence controls the charge separation in a prototypical artificial light-harvesting system

Autor Rozzi, Carlo Andrea; Falke, Sarah Maria; Spallanzani, N.; Rubio, Angel; Molinari, Elisa; Brida, Daniele; Maiuri, Margherita; Cerullo, Giulio; Schramm, Heiko; Christoffers, Jens; Lienau, Christoph
Fecha de publicación 2013
EditorNature Publishing Group
Citación Nature Communications 4: 1602 (2013)
ResumenThe efficient conversion of light into electricity or chemical fuels is a fundamental challenge for sustainable development. In artificial photosynthetic and photovoltaic devices this conversion is generally thought to happen on the femtosecond time scale and to involve an incoherent electron transfer process. In some natural biological systems, however, there is now growing evidence that the coherent motion of electronic wavepackets is an essential primary step, raising questions about the role of quantum coherence in artificial devices. Here we investigate the primary charge transfer process in a supramolecular triad, a prototypical artificial reaction center. Combining high time-resolution femtosecond spectroscopy and time-dependent density functional theory, we provide compelling evidence that the driving mechanism of the photoinduced current generation cycle is a correlated wavelike motion of electrons and nuclei on the timescale of few tens of femtoseconds. We highlight the fundamental role of the interface between chromophore and charge acceptor in triggering the coherent wavelike electron-hole splitting.
Descripción This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
Versión del editorhttp://dx.doi.org/10.1038/ncomms2603
URI http://hdl.handle.net/10261/94959
DOI10.1038/ncomms2603
Identificadoresdoi: 10.1038/ncomms2603
e-issn: 2041-1723
Aparece en las colecciones: (CFM) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Quantum coherence.pdf765,58 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.