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Proceedings Paper

Electrodeposition of NiO films from various solvent electrolytic solutions for dye sensitized solar cell application
Author(s): S. Koussi-Daoud; Y. Pellegrin; F. Odobel; B. Viana; T. Pauporté
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Paper Abstract

We have investigated the preparation of NiO layers by cathodic electrodeposition in various organic-based solvents, namely ethanol, dimethyl sulfoxide (DMSO), DMSO/2 vol.% H2O and DMSO/25 vol.% H2O mixtures. The layers were formed from the electrochemical reduction of nickel nitrate precursor. We show that, depending on the solvent used, various nickel compounds were deposited. In the case of ethanol, a transparent precursor layer was obtained that was transformed into NiO after an annealing treatment at 300°C. For DMSO and DMSO with 2 volume % of H2O, adherent, well-covering, mesoporous and rather thick NiO layers were obtained after an annealing treatment at 450°C. These layers, after growth, contained nickel oxide or hydroxide, metallic nickel and DMSO. The solvent acted as a blowing agent, being included in the deposit and giving rise to a mesoporous film after its elimination by thermal annealing. These porous layers of p-type oxide have been successfully sensitized by a push-pull dye (P1 dye) and showed photocurrent generation and an open circuit voltage (Voc) up to 167 mV in p-type dye-sensitized solar cells (p-DSSCs). For DMSO with 25 volume % of H2O, the deposited layers contained more metallic nickel and were dense even after annealing. They were unsuitable in p-DSSCs.

Paper Details

Date Published: 24 February 2017
PDF: 8 pages
Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 1010526 (24 February 2017); doi: 10.1117/12.2252251
Show Author Affiliations
S. Koussi-Daoud, Chimie ParisTech, PSL Research Univ., CNRS, Institut de Recherche de Chimie Paris (France)
Y. Pellegrin, Univ. LUNAM, Univ. de Nantes, CNRS, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (France)
F. Odobel, Univ. LUNAM, Univ. de Nantes, CNRS, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (France)
B. Viana, Chimie ParisTech, PSL Research Univ., CNRS, Institut de Recherche de Chimie Paris (France)
T. Pauporté, Chimie ParisTech, PSL Research Univ., CNRS, Institut de Recherche de Chimie Paris (France)


Published in SPIE Proceedings Vol. 10105:
Oxide-based Materials and Devices VIII
Ferechteh H. Teherani; David C. Look; David J. Rogers, Editor(s)

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