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Transparent Tantalum Clusters-based UV and IR Blocking Electro-chromic Devices

Abstract

The first integration by solution deposition process of tantalum octahedral clusters in multifunctional nanocomposite materials and devices for smart window is investigated in this study. Two [Ta6Bri12]n+ cluster cores-based high transparent visible UV and NIR filters are realized. Films are fabricated by incorporation of clusters in a polymer matrix and coating on ITO substrate. Electrochromic cell consists in the insertion of Ta6-based electrolyte between two transparent conductive electrodes. In both cases, the modification of the absorption properties in the visible and NIR spectral range is able by altering and controlling the oxidation state of the tantalum cluster. The stabilization of reduced [Ta6Bri12]2+ or oxidized [Ta6Bri12]3+/4+ species leads to green-emerald or slight brown filters having a slight or a strong red-NIR absorption respectively. Their efficiency in energy saving is estimated by the determination of figures of merit and color coordinates. That highlights that [Ta6Bri12]n+-based composites are promising absorbers for energy saving applications.

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Publication details

The article was received on 05 May 2017, accepted on 14 Jul 2017 and first published on 14 Jul 2017


Article type: Paper
DOI: 10.1039/C7TC01964E
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Transparent Tantalum Clusters-based UV and IR Blocking Electro-chromic Devices

    A. Renaud, M. wilmet, T. G. Truong, M. seze, P. Lemoine, N. Dumait, C. Whnagwui, N. Saito, T. OHSAWA, T. Uchikoshi, N. Ohashi, S. Cordier and F. GRASSET, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC01964E

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