Transparent tantalum cluster-based UV and IR blocking electrochromic devices | Zendy

Adèle Renaud | Zendy; Maxence Wilmet | Zendy; Thai Giang Truong | Zendy; M. Seze | Zendy; Pierric Lemoine | Zendy; Noée Dumait | Zendy; Wanghui Chen | Zendy; Norio Saito | Zendy; Takeo Ohsawa | Zendy; Tetsuo Uchikoshi | Zendy; Naoki Ohashi | Zendy; Stéphane Cordier | Zendy; Fabien Grasset | Zendy

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Transparent tantalum cluster-based UV and IR blocking electrochromic devices

Author(s) -

Adèle Renaud,

Maxence Wilmet,

Thai Giang Truong,

M. Seze,

Pierric Lemoine,

Noée Dumait,

Wanghui Chen,

Norio Saito,

Takeo Ohsawa,

Tetsuo Uchikoshi,

Naoki Ohashi,

Stéphane Cordier,

Fabien Grasset

Publication year - 2017

Publication title -

journal of materials chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.899

H-Index - 128

eISSN - 2050-7534

pISSN - 2050-7526

DOI - 10.1039/c7tc01964e

Subject(s) - tantalum , electrochromism , materials science , blocking (statistics) , electrochromic devices , cluster (spacecraft) , deposition (geology) , nanocomposite , nanotechnology , optoelectronics , computer science , metallurgy , electrode , chemistry , operating system , computer network , paleontology , sediment , biology

International audienceThe integration by a solution deposition process of tantalum octahedral clusters in multifunctional nanocomposite materials and devices for smart windows is investigated for the first time in this study. Two [Ta6Bri 12]n+ cluster core-based highly transparent visible UV and NIR filters are realized. Films are fabricated by incorporation of clusters in a polymer matrix and coating them on an ITO substrate. The electrochromic cell consists of a Ta6-based electrolyte inserted between two transparent conductive electrodes. In both cases, the modification of the absorption properties in the visible and NIR spectral range is possible by altering and controlling the oxidation state of the tantalum cluster. The stabilization of reduced [Ta6Bri 12]2+ or oxidized [Ta6Bri 12]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. This highlights that [Ta6Bri 12]n+-based composites are promising absorbers for energy saving applications. © 2017 The Royal Society of Chemistry

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