Abstract

The fabrication of such an all-solid-state EC device using the combination of amorphous WO<SUB>3</SUB> film as the electrochromic layer and VO<SUB>2</SUB> as the counter electrode is studied. Lithiation studies of two transition metal oxides (WO<SUB>3</SUB> and VO<SUB>2</SUB>) were done for their use as base electrochromic layer and counter electrode layer in the solid device. A dry method of lithiation of the device is proposed and characterized completely for it use in the fabrication of EC device. The properties of thermally evaporated LiAlF<SUB>4</SUB> were also studied for its use as the ion conducting layer. Using these three materials an all-solid-state electrochromic device has been fabricated and studied for its use as a `smart window.'

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