Sputter deposited W1_x_yNixTiyO3 thin films: Electrochromic properties and durability

INERA Conference 2015: Light in Nanoscience and Nanotechnology

Morales-Luna, M.^1,2 ; Arvizu, M.A.^1 ; Granqvist, C.G.^1 ; Niklasson, G.A.^1

Department of Engineering Sciences, Ångström Laboratory, Uppsala University, P. O. Box 534, Uppsala

SE-751 21, Sweden^1

Departamento de Nanociencias y Nanotecnología, Centro de Investigación y de Estudios Avanzados Del I. P. N., A. P. 14-740, México D. F.

07360, Mexico^2

关键词: Coloration efficiencies;    Electrochromic properties;    Electrochromics;    Elemental compositions;    Indium tin oxide;    Nickel titanium;    Propylene carbonate;    Voltage window;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/682/1/012021/pdf
DOI  :  10.1088/1742-6596/682/1/012021

来源: IOP

【 摘 要 】

Previous research demonstrated that a small amount of nickel enhances the coloration efficiency of tungsten-nickel oxide electrochromic (EC) thin films with respect to that of pure tungsten oxide (WO3) films. Furthermore the incorporation of titanium gives an improvement in the durability of tungsten-titanium oxide EC thin films. In this work we investigated the EC performance of tungsten-nickel-titanium oxide (W1-x-yNixTiyO3) EC thin films with emphasis on durability. The films were deposited on indium tin oxide covered glass by reactive dc sputtering from tungsten, tungsten-titanium alloy and nickel targets. Cyclic voltammetry was performed using 1 M LiClO4in propylene carbonate as electrolyte. The voltage window was chosen to induce fast degradation of the samples within 80 cycles. Elemental compositions were obtained by Rutherford Backscattering Spectroscopy.