Preparation by electrophoretic deposition of molybdenum iodide cluster-based functional nanostructured photoelectrodes for solar cells

This work explores the potentiality of Mo6 clusters as new inorganic sensitizers with amphoteric properties for photoelectronic applications being non-toxic and stable. It reports on the design of photoelectrodes by electrophoretic deposition (EPD) of molybdenum octahedral metal cluster iodide (CMI)...

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Published inElectrochimica acta Vol. 317; pp. 737 - 745
Main Authors Renaud, A., Nguyen, T.K.N., Grasset, F., Raissi, M., Guillon, V., Delabrouille, F., Dumait, N., Jouan, P.-Y., Cario, L., Jobic, S., Pellegrin, Y., Odobel, F., Cordier, S., Uchikoshi, T.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 10.09.2019
Elsevier BV
Elsevier
Subjects
Chemical Sciences
Dye-sensitized solar cells
Electrophoretic deposition
Material chemistry
Metal clusters
Metallic cluster
Molybdenum
Nickel oxides
Photoelectrodes
Photovoltaic cells
Solar cells
Substrates
Thin film
Titanium dioxide
Metallic cluster
Photoelectrodes
Solar cells
Molybdenum
Electrophoretic deposition
Thin film
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Summary:This work explores the potentiality of Mo6 clusters as new inorganic sensitizers with amphoteric properties for photoelectronic applications being non-toxic and stable. It reports on the design of photoelectrodes by electrophoretic deposition (EPD) of molybdenum octahedral metal cluster iodide (CMI) onto mesoporous TiO2 and NiO layers before being deposited on FTO (i. e. CMI@TSO@FTO, TSO = TiO2 or NiO). Indeed, the low-cost, low-waste and industrially scalable EPD method has allowed for the achievement of transparent, homogeneous orange/red [Mo6Ii8]4+ cluster core-based films, and appears suitable for the sensitization of TiO2- and NiO-based electrodes of n- and p-type solar cells inspired from dye-sensitized solar cells (DSSCs). First, the EPD process was optimized by the direct deposition of CMI onto an FTO substrate (CMI@FTO) leading to the realization of highly transparent colored films. Second, strongly colored CMI@TSO@FTO photoelectrodes were achieved and integrated into solar cell devices. Hence, compared to the classical soaking method, the EPD process significantly improves the quality (i.e., its homogeneity and absorption properties) of the photoelectrodes, leading consequently to much better photovoltaic performances. [Display omitted]
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2019.05.154