Tunable photo-induced electronic property of octahedral metal clusters

•The tunable photo-induced electronic property of the metal atom clusters was studied.•The clusters showed the dependence of zeta potential on excitation wavelength.•The reversion of zeta potential excited at 410 nm was found for the Ta6-based cluster. The tunable photo-induced electronic property o...

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Bibliographic Details
Published in:Materials letters. X 2021-09, Vol.11, p.100079, Article 100079
Main Authors: Nguyen, Thi Kim Ngan, Grasset, Fabien, Dumait, Noée, Cordier, Stéphane, Berthebaud, David, Ohashi, Naoki, Uchikoshi, Tetsuo
Format: Article
Language:English
Subjects:
Chemical Sciences
Inorganic chemistry
Material chemistry
Metal cluster
Molybdenum
Optoelectronic property
Tantalum
Zeta potential
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Summary:•The tunable photo-induced electronic property of the metal atom clusters was studied.•The clusters showed the dependence of zeta potential on excitation wavelength.•The reversion of zeta potential excited at 410 nm was found for the Ta6-based cluster. The tunable photo-induced electronic property of the Cs2[{Mo6Bri8}Bra6] and Br2[{Ta6Bri12}(H2O)a6] octahedral metal cluster-based compounds was characterized by the zeta potential measurement upon irradiation by ultraviolet–visible (UV–Vis) light. The enhancement of the electronic charge on the surface of the [{Mo6Bri8}Bra6]2- cluster-based anion caused by the irradiation increased the negative zeta potential. Both compounds showed the dependence of the zeta potential as a function of the light excitation. This will be a promising property for sensor applications based on the reversibility of the photo-electrochemical properties of the functional cluster.
ISSN:2590-1508
2590-1508
DOI:10.1016/j.mlblux.2021.100079