Eur. Phys. J. Appl. Phys.
Volume 36, Number 3, December 2006
|Page(s)||301 - 305|
|Section||Physics of Energy Conversion and Coupled Phenomena|
|Published online||10 January 2007|
Light-harvesting fullerenes for organic solar cells *
Laboratoire Chimie Ingénierie Moléculaire et Matériaux d'Angers, Groupe Synthèse Organique et Matériaux Fonctionnels, UMR-CNRS 6200, 2 Bd Lavoisier, 49045 Angers, France
2 Laboratoire Propriétés Optiques des Matériaux et Applications, PPF “Cellules Solaires Photovoltaïques Plastiques”, UMR-CNRS 6136, 2 Bd Lavoisier, 49045 Angers, France
3 Molecular Photonics Group, Van't Hoff Institute for Molecular Sciences, Universiteit Van Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands
Corresponding author: email@example.com
Revised: 13 October 2006
Accepted: 17 October 2006
Published online: 10 January 2007
Novel dyads containing fullerene–perylenediimide units were developed as light-harvesting acceptors for the preparation of efficient solar cells. The antenna was grafted onto C60 with the aim to improve the absorption spectrum of materials used in bulk-heterojunction devices. Electrochemical and photophysical studies of these dyads in solution have revealed that there was no significant ground-state electronic interaction between the covalently bonded PDI and fullerene moieties. Steady-state fluorescence experiments evidenced an effective photoinduced energy transfer from the PDI moiety to C60. The potential use of these light-harvesting fullerenes in organic solar cells was estimated with their incorporation in bulk-heterojunctions using poly(3-hexylthiophene) as the conjugated -donor polymer.
PACS: 84.60.Jt – Photoelectric conversion: solar cells and arrays / 78.66.Tr – Fullerenes and related materials
© EDP Sciences, 2006
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