Coherent ultrafast charge transfer in an organic photovoltaic blend-Reference-Cited by-同舟云学术

Coherent ultrafast charge transfer in an organic photovoltaic blend

Published:2014-05-30 Issue:6187 Volume:344 Page:1001-1005
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Falke Sarah Maria¹²,Rozzi Carlo Andrea³,Brida Daniele⁴⁵,Maiuri Margherita⁴,Amato Michele⁶,Sommer Ephraim¹²,De Sio Antonietta¹²,Rubio Angel⁷⁸,Cerullo Giulio⁴,Molinari Elisa³⁹,Lienau Christoph¹²

Affiliation:

1. Institut für Physik, Carl von Ossietzky Universität, 26129 Oldenburg, Germany.

2. Center of Interface Science, Carl von Ossietzky Universität, 26129 Oldenburg, Germany.

3. Istituto Nanoscienze–Consiglio Nazionale delle Ricerche (CNR), Centro S3, via Campi 213a, 41125 Modena, Italy.

4. Istituto di Fotonica e Nanotecnologie–CNR, Dipartimento di Fisica, Politecnico di Milano, 20133 Milano, Italy.

5. Department of Physics and Center for Applied Photonics, University of Konstanz, 78457 Konstanz, Germany.

6. Institut d'Électronique Fondamentale, UMR8622, CNRS, Universitè Paris-Sud, 91405 Orsay, France.

7. Nano-Bio Spectroscopy Group and European Theoretical Spectroscopy Facility Scientific Development Centre, Departamento Física de Materiales, Universidad del País Vasco (UPV), Centro de Física de Materiales Consejo Superior de Investigaciones Científicas–UPV/Euskal Herriko Unibertsitatea–Materials Physics Center and Donostia International Physics Center, Avenida Tolosa 72, 20018 San Sebastián, Spain.

8. Fritz-Haber-Institut der Max-Planck-Gesellschaft, 14195 Berlin, Germany.

9. Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, via Campi 213a, 41125 Modena, Italy.

Abstract

Pull, pull, pulling electrons along Organic photovoltaics operate by transferring charge from a light-absorbing donor material to a nearby acceptor. Falke et al. show that molecular vibrations smooth the way for this charge transfer to proceed. A combination of ultrafast spectroscopy and theoretical simulations revealed an oscillatory signal in a model donor/acceptor blend that implicates carbon-carbon bond stretching in concert with the electronic transition. This vibrational/electronic, or vibronic, process maintains a quantum-mechanical phase relationship that guides the charge more rapidly and directly than an incoherent migration from donor to acceptor. Science , this issue p. 1001

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference48 articles.

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