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Jiang, T., Bujoli-Doeuff, M., Farre, Y., Blart, E., Pellegrin, Y., Gautron, E., Boujtita, M., Cario, L., Odobel, F. & Jobic, S. (2016) Copper borate as a photocathode in p-type dyesensitized solar cells. RSC Adv. 6 1549–1553.
Added by: Laurent Cournède (2016-03-10 20:44:50) |
| Type de référence: Article Numéro d'identification (ISBN etc.): 2046-2069 Clé BibTeX: Jiang2016 Voir tous les détails bibliographiques  |
Catégories: MIOPS Mots-clés: cualo2, cugao2, Hydrothermal synthesis, nanocrystalline cubo2, nio, sensitization, thin-films Créateurs: Blart, Boujtita, Bujoli-Doeuff, Cario, Farre, Gautron, Jiang, Jobic, Odobel, Pellegrin Collection: RSC Adv. |
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| Résumé |
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p-Type dye-sensitized solar cells (p-DSSCs) have recently become a major research focus because coupling with n-type DSSCs yields highly efficient tandem DSSCs. Indeed many delafossite-like compounds appear as promising candidates for p-DSSCs due to their deep valence band position and high hole mobility. In this paper, the synthesis of CuBO2 was attempted by a facile sol-gel methodology. Then, the as-obtained particles were used to prepare photocathodes for p-DSSCs with DPP-NDI dye as sensitizer and tris(4,4'-ditert-butyl-2,2'-bipyridine)cobalt(III/II) as redox mediator. Due to the deeper valence band position compared with classical NiO photocathode, the "CuBO2" based p-DSSC presents an open-circuit photovoltage (V-oc) of 453 mV, which is 150 mV higher than that of NiO in the same conditions. The results show that "CuBO2" is a potential alternative for NiO in p-DSSCs.
Added by: Laurent Cournède |