Eur. Phys. J. Appl. Phys. 36, 261-265 (2006)
https://doi.org/10.1051/epjap:2006144

Hybrid organic-inorganic nanomaterials: ligand effects^*

¹ Laboratoire d'Électronique Moléculaire, Organique et Hybride, CEA-Grenoble, DRFMC/SPrAM, UMR 5819, 17 rue des Martyrs, 38054 Grenoble, Cedex 9, France
² Laboratoire Cellules et Composants, CEA-Saclay, DRT/LITEN/GENEC/L2C, Gif-sur-Yvette, France

Corresponding author: frederic.chandezon@cea.fr

Received: 25 July 2006
Accepted: 25 October 2006
Published online: 10 January 2007

Abstract

CdSe nanocrystals were modified with small ligand molecules in order to render them compatible with a conducting polymer matrix. Modified NCs were characterized by NMR, optical spectroscopy, electrochemistry. Hybrid materials based on such modified nanocrystals and a conducting polymer (MDMO-PPV, P3HT or P3OT) were prepared, characterized, and tested in photovoltaic devices. Modified NCs quench the polymer PL in solutions as well as in films. Photovoltaic devices display modest power conversion efficiencies mainly due to phase segregation.