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Comptes Rendus Physique
Volume 9, n° 1
pages 110-118 (janvier 2008)
Doi : 10.1016/j.crhy.2007.10.005
Hybrid bulk heterojunction solar cells based on blends of TiO2 nanorods and P3HT
Cellules solaires à hétérojonction à base de nanofils de TiO2 et de P3HT
 

Johann Bouclé a, b, , Sabina Chyla c, Milo S.P. Shaffer c, James R. Durrant c, Donal D.C. Bradley a, Jenny Nelson a
a Department of Physics, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom 
b Cavendish Laboratory, Madingley Road, Cambridge, CB3 0HE, United Kingdom 
c Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom 

Correspondence to: XLIM-Minacom, UMR CNRS 6172, Optoélectronique Plastique, Faculté des Sciences et Techniques, 123 Avenue Albert Thomas, 87060 Limoges Cedex, France. Department of Physics, Blackett Laboratory, Imperial College London, London SW7 2BW, United Kingdom.
Abstract

Over the past decades, organic solar cells based on semiconducting polymers or small molecules have become a promising alternative to traditional inorganic photovoltaic devices. However, to address the intrinsic limitations of organic materials, such as charge separation yield, charge transport and durability, new strategies based on hybrid organic/inorganic materials have been explored. One such approach exploits mesoporous inorganic nanostructures as electron acceptors, which takes advantage of the potential to control the active layer structure and interface morphology through nanoparticle synthesis and processing. In this work, the potential of hybrid photovoltaics will be discussed and illustrated through a recent study of bulk heterojunction systems based on the blend of TiO2 nanorods with a conjugated polymer. To cite this article: J. Bouclé et al., C. R. Physique 9 (2008).

The full text of this article is available in PDF format.
Résumé

Depuis plus de deux décennies, les cellules solaires organiques basées sur lʼutilisation de molécules ou de polymères semi-conducteurs ont démontré de fortes potentialités. Néanmoins, et pour répondre aux limitations intrinsèques dues aux matériaux organiques (nature de lʼexciton, durée de vie limitée, etc.), de nouvelles stratégies de composants hybrides basés sur lʼassociation de matériaux organiques et inorganiques ont vu le jour. Ces nouvelles approches, basées sur lʼutilisation de couches mésoporeuses inorganiques ou de nanocristaux semi-conducteurs accepteurs dʼélectrons, permettent en particulier un contrôle fin des architectures et des interfaces à lʼéchelle nanométrique. Dans ce contexte, ce travail a pour objectif la description des potentialités des composants hybrides pour la conversion photovoltaïque en sʼappuyant sur un exemple récent de cellule à hétérojonction basée sur le mélange de nanofils de TiO2 avec un polymère conjugué. Pour citer cet article : J. Bouclé et al., C. R. Physique 9 (2008).

The full text of this article is available in PDF format.

Keywords : Bulk-heterojunction, Hybrid, Solar cells, Conjugated polymers, P3HT

Mots-clés : Cellules solaires à heterojunction, Composants hybrides, Polymère conjugués, P3HT, Nanocristaux semi-conducteurs, TiO2




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