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Article Dans Une Revue Solid State Sciences Année : 2016

Synthesis of Ni-poor NiO nanoparticles for p-DSSC applications

Résumé

To improve the performances of p-Dye Sensitized Solar Cell (p-DSSC) for the future, the synthesis of modified p-type nickel oxide semiconductor, commonly used as photocathode in such devices, was initiated with Ni3O2(OH)4 as precursor. This specific nickel oxyhydroxide was first characterized by X-ray photo-electron spectroscopy and magnetic susceptibility measurements. Then its thermal decomposition was thoroughly studied in order to control the particles size of the as-prepared NiO nanopowders. Low temperature decomposition in air of this precursor allows the formation of Ni1-xO nanoparticles with a large amount of Ni vacancies and specific surface areas up to 250 m2.g-1. Its ammonolysis at 250°C leads to nanostructured N-doped NiO (NiO:N) materials.

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Matériaux Chimie
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Dates et versions

hal-01217791 , version 1 (29-10-2015)

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Baptiste Polteau, Franck Tessier, François Cheviré, Laurent Cario, Fabrice Odobel, et al.. Synthesis of Ni-poor NiO nanoparticles for p-DSSC applications. Solid State Sciences, 2016, 54, pp.37-42. ⟨10.1016/j.solidstatesciences.2015.10.007⟩. ⟨hal-01217791⟩
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