Efficient electrochemical reaction in hexagonal WO3 forests with a hierarchical nanostructure

被引:55
作者
Shibuya, Masachika [1 ]
Miyauchi, Masahiro [1 ]
机构
[1] Natl Inst Adv Ind Sci & Technol, Nanotechnol Res Inst, Tsukuba, Ibaraki 3058565, Japan
关键词
ELECTROCHROMIC PROPERTIES; TUNGSTEN-OXIDE; NANORODS; DEVICES; FILM;
D O I
10.1016/j.cplett.2009.03.043
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
Nanotree-like hexagonal tungsten oxide (WO3) arrays were grown on metal tungsten substrates by a facile hydrothermal method. The WO3 nanotrees, composed of 'trunks' and 'branches', were single crystals oriented in the < 001 > direction. Nanotree thin. films exhibited efficient electrochromism due to their large tunnels in the crystal and nano-channels between the nanotrees. Moreover, their coloration efficiency and reversibility were superior to polycrystalline WO3 films. (C) 2009 Elsevier B. V. All rights reserved.
引用
收藏
页码:126 / 130
页数:5
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