Unprecedented Electrochromic Stability of a-WO3-x Thin Films Achieved by Using a Hybrid-Cationic Electrolyte

doi:10.1021/acsami.0c22921

IMR OpenIR

	Unprecedented Electrochromic Stability of a-WO3-x Thin Films Achieved by Using a Hybrid-Cationic Electrolyte
	Guo, Junji 1; Guo, Xing 2,3; Sun, Huibin 1; Xie, Yizhu 1,7; Diao, Xungang 8; Wang, Mei 4; Zeng, Xiping 5; Zhang, Zhi-Bin 6
通讯作者	Xie, Yizhu(yzxie@szu.edu.cn) ; Diao, Xungang(diaoxg@buaa.edu.cn)
	2021-03-10
发表期刊	ACS APPLIED MATERIALS & INTERFACES
ISSN	1944-8244
卷号	13 期号:9 页码:11067-11077
摘要	With large interstitial space volumes and fast ion diffusion pathways, amorphous metal oxides as cathodic intercalation materials for electrochromic devices have attracted attention. However, these incompact thin films normally suffer from two inevitable imperfections: self-deintercalation of guest ions and poor stability of the structure, which constitute a big obstacle toward the development of high-stable commercial applications. Here, we present a low-cost, eco-friendly hybrid cation 1,2-PG-AlCl3 center dot 6H(2)O electrolyte, in which the sputter-deposited a-WO3-x thin film can exhibit both the long-desired excellent open-circuit memory (>100 h, with zero optical loss) and super-long cycling lifetime (similar to 20,000 cycles, with 80% optical modulation), benefiting from the formation of unique Al-hydroxide-based solid electrolyte interphase during electrochromic operations. In addition, the optical absorption behaviors in a-WO3-x caused by host-guest interactions were elaborated. We demonstrated that the intervalence transfers are primarily via the "corner-sharing" related path (W5+ <-> W6+) but not the "edge-sharing" related paths (W4+ <-> W6+ and/or W4+ <-> W5+), and the small polaron/electron transfers taking place at the W-O bond-breaking positions are not allowed. Our findings might provide in-depth insights into the nature of electrochromism and provide a significant step in the realization of more stable, more excellent electrochromic applications based on amorphous metal oxides.
关键词	a-WO3-x thin film 1,2-PG-AlCl3 center dot 6H(2)O electrolyte open-circuit memory cyclic stability optical absorption
资助者	Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Electron Microscope Center of the Shenzhen University
DOI	10.1021/acsami.0c22921
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of China[51507104] ; Natural Science Foundation of China[62071307] ; China Postdoctoral Science Foundation[2019M663056] ; Electron Microscope Center of the Shenzhen University
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000629054100038
出版者	AMER CHEMICAL SOC
引用统计	被引频次：48[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/161675
专题	中国科学院金属研究所
通讯作者	Xie, Yizhu; Diao, Xungang
作者单位	1.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 4.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China 5.Shenzhen Huake Tek Co Ltd, Shenzhen 518000, Peoples R China 6.Uppsala Univ, Div Solid State Elect, Agstromlab, S-75121 Uppsala, Sweden 7.Shenzhen Univ, Key Lab Optoelect Devices & Syst, Coll Phys & Optoelect Engn, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China 8.Beihang Univ, Sch Energy & Power Engn, Beijing 100191, Peoples R China
推荐引用方式 GB/T 7714	Guo, Junji,Guo, Xing,Sun, Huibin,et al. Unprecedented Electrochromic Stability of a-WO3-x Thin Films Achieved by Using a Hybrid-Cationic Electrolyte[J]. ACS APPLIED MATERIALS & INTERFACES,2021,13(9):11067-11077.
APA	Guo, Junji.,Guo, Xing.,Sun, Huibin.,Xie, Yizhu.,Diao, Xungang.,...&Zhang, Zhi-Bin.(2021).Unprecedented Electrochromic Stability of a-WO3-x Thin Films Achieved by Using a Hybrid-Cationic Electrolyte.ACS APPLIED MATERIALS & INTERFACES,13(9),11067-11077.
MLA	Guo, Junji,et al."Unprecedented Electrochromic Stability of a-WO3-x Thin Films Achieved by Using a Hybrid-Cationic Electrolyte".ACS APPLIED MATERIALS & INTERFACES 13.9(2021):11067-11077.