Assembly of tungsten oxide nanobundles and their electrochromic properties

被引：46

作者：

Chang, Xueting ^{[1
,2
]}

Sun, Shibin ^{[1
,2
]}

Li, Zhenjiang ^{[2
]}

Xu, Xiao ^{[2
]}

Qiu, Yanyan ^{[2
]}

机构：

[1] Shanghai Maritime Univ, Inst Marine Mat Sci & Engn, Shanghai 201306, Peoples R China

[2] Qingdao Univ Sci & Technol, Coll Electromech Engn, Qingdao 266061, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 13期

基金：

中国国家自然科学基金;

关键词：

Tungsten oxide; Nanobundles; Self-assembly; Electrochromic; Charge-insertion density; FIELD-EFFECT TRANSISTORS; WO3; NANORODS; NANOWIRES; FILMS; ELECTROLYTE; SUBSTRATE; W18O49;

D O I：

10.1016/j.apsusc.2011.01.085

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Lenticular W(18)O(49) nanobundles composed of ultra-thin nanowires with diameters of 5-10nm have been synthesized through a simple solvothermal method with hexachloride as precursor and mixed cyclohexanol and ethanol as solvent. Electrochromic films were prepared by assembling the W(18)O(49) nanobundle suspension onto tin-doped indium oxide (ITO) coated glass. Results showed that self-assembly of the W(18)O(49) nanobundles was strongly influenced by the solvents employed to disperse the nanobundles. The W(18)O(49) nanobundles coated films exhibited excellent electrochromic stability and reversibility. The W(18)O(49) nanobundle films also showed much higher charge-insertion density compared with the WO(3) nanorod film, which may be due to the ultrathin feature of single nanowires constituting the nanobundles, unique oxygen vacancies of monoclinic W(18)O(49), and the highly ordered assembly of the nanobundles. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：5726 / 5730

页数：5

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