Efficient Dye-Sensitized Solar Cells Made from ZnO Nanostructure Composites - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Physical Chemistry C Année : 2012

Efficient Dye-Sensitized Solar Cells Made from ZnO Nanostructure Composites

E. Puyoo
G. Rey
  • Fonction : Auteur

Résumé

We describe a simple and low-cost wet-chemical route for the synthesis of ZnO nanowire/nanoparticle composite electrodes. The integration of such nanocomposite photoanodes in dye-sensitized solar cells (DSSCs) leads to much better photovoltaic properties than for bare nanowire or nanoparticle ensembles with a photoconversion efficiency as high as 4.7%. Importantly, beneficial effects of thermal heat treatments are investigated in terms of ZnO nanoparticle formation and DSSC photovoltaic properties. In particular, we reveal the presence of a zinc oxoacetate intermediate phase from 120 degrees C, which drastically reduces the electron leakages at the ZnO/dye/electrolyte interface, while retaining a large specific surface area and a relatively good electron injection efficiency.

Domaines

Matériaux
Fichier non déposé

Dates et versions

hal-00747510 , version 1 (31-10-2012)

Identifiants

Citer

E. Puyoo, G. Rey, E. Appert, Vincent Consonni, D. Bellet. Efficient Dye-Sensitized Solar Cells Made from ZnO Nanostructure Composites. Journal of Physical Chemistry C, 2012, 116 (34), pp.18117-18123. ⟨10.1021/jp306174f⟩. ⟨hal-00747510⟩
54 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More