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Issue 2, 2016
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Copper borate as a photocathode in p-type dye-sensitized solar cells

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Abstract

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′-di-tert-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 (Voc) 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.

Graphical abstract: Copper borate as a photocathode in p-type dye-sensitized solar cells

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Supplementary files

Article information


Submitted
18 Nov 2015
Accepted
15 Dec 2015
First published
18 Dec 2015

RSC Adv., 2016,6, 1549-1553
Article type
Communication

Copper borate as a photocathode in p-type dye-sensitized solar cells

T. Jiang, M. Bujoli-Doeuff, Y. Farré, E. Blart, Y. Pellegrin, E. Gautron, M. Boujtita, L. Cario, F. Odobel and S. Jobic, RSC Adv., 2016, 6, 1549 DOI: 10.1039/C5RA24397A

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