Assembly of tungsten oxide nanobundles and their electrochromic properties
Assembly of tungsten oxide nanobundles and their electrochromic properties
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氧化钨纳米束的组装及其电致变色性能
DOI：
10.1016/j.apsusc.2011.01.085
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发表时间：
2011-04-15
影响因子：
6.7
通讯作者：
Qiu, Yanyan
中科院分区：
文献类型：
--
作者：
Chang, Xueting;Sun, Shibin;Qiu, Yanyan
以六氯化物为前驱体，以环己醇和乙醇混合为溶剂，通过简单的溶剂热法合成了由直径为5-10 nm的超细纳米线组成的透镜状W(18)O(49)纳米束。通过将W(18)O(49)纳米束悬浮液组装到锡掺杂氧化铟(ITO)镀膜玻璃上制备电致变色薄膜。结果表明，W(18)O(49) 纳米束的自组装受到用于分散纳米束的溶剂的强烈影响。 W(18)O(49)纳米束涂覆薄膜表现出优异的电致变色稳定性和可逆性。与WO(3)纳米棒薄膜相比，W(18)O(49)纳米束薄膜还表现出更高的电荷插入密度，这可能是由于构成纳米束的单根纳米线的超薄特性、单斜晶W(18)O(49)独特的氧空位以及纳米束的高度有序组装。 (C) 2011 Elsevier B.V. 保留所有权利。
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.