High performance all-solid-state electrochromic device based on LixNiOy layer with gradient Li distribution

doi:10.1016/j.electacta.2019.05.125

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	High performance all-solid-state electrochromic device based on LixNiOy layer with gradient Li distribution
	Zhu, Ying; Xie, Lingling; Chang, Tianci; Bell, John; Huang, Aibin; Jin, Ping; Bao, Shanhu
	2019-09-10
Source Publication	ELECTROCHIMICA ACTA
ISSN	0013-4686
Volume	317 Pages:10
Subtype	Article
Abstract	In the complementary electrochromic devices (ECDs), nickel oxide (NiOx) is the mostly studied material as counter electrode for its neutral brown color and relatively large coloration efficiency. However, there exist some obstacles that limit the utilization of NiOx counter electrode in ECDs due to the poor transparency in the bleached state and inadequate ion storage capacity. Here, a new type of counter electrode LixNiOy layers has been investigated, and LixNiOy-based all-solid-state inorganic ECD has been successfully fabricated by magnetron sputtering. The prepared ECD exhibits excellent electrochromic performance with an optical contrast of 72.8% at 550 nm, and desirable response time with 13 s and 3.5 s for coloring and bleaching process, respectively. Furthermore, the advantages of LixNiOy-based ECDs have been demonstrated due to the gradient distribution of Li element in the LixNiOy layer. The LixNiOy layer in the proposed ECD shows a Li-rich surface, which can provide more Li ions for the coloration process. Meanwhile, the bottom of LixNiOy layer is Li-poor, which can accommodate more ions during the bleaching reaction. This structure shows superiority over the traditional NiOx-based structure, as well as some other structures. Hence, our work guided a promising new structure for the electrochromic practical application and commercial mass production. (C) 2019 Elsevier Ltd. All rights reserved.
Keyword	Electrochromic device All-solid-state LixNiOy films Gradient distribution
DOI	10.1016/j.electacta.2019.05.125
Language	英语
WOS Research Area	Electrochemistry
Publisher	PERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/26844
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Zhu, Ying,Xie, Lingling,Chang, Tianci,et al. High performance all-solid-state electrochromic device based on LixNiOy layer with gradient Li distribution[J]. ELECTROCHIMICA ACTA,2019,317:10.
APA	Zhu, Ying.,Xie, Lingling.,Chang, Tianci.,Bell, John.,Huang, Aibin.,...&Bao, Shanhu.(2019).High performance all-solid-state electrochromic device based on LixNiOy layer with gradient Li distribution.ELECTROCHIMICA ACTA,317,10.
MLA	Zhu, Ying,et al."High performance all-solid-state electrochromic device based on LixNiOy layer with gradient Li distribution".ELECTROCHIMICA ACTA 317(2019):10.

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