点击次数：

论文类型：期刊论文

发表时间：2014-02-01

发表刊物：SOLID STATE COMMUNICATIONS

收录刊物：SCIE、EI、Scopus

卷号：180

页面范围：24-27

ISSN号：0038-1098

关键字：Nanostructures; VO2(M); Optical properties; Phase transitions

摘要：W-doped monoclinic vanadium dioxide VO2(M) nanobelts have been transformed from VO2(B) nanobelts in the presence of tungstic acid by a facile one-step hydrothermal route for the first time The as prepared samples were characterized by X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRD), transmission electron microscopy (TEM), differential scanning calorimetry (DSC) and variable temperature infrared spectroscopy (IR). The results show that W atoms are doped into the crystal lattice of VO2( M) matrix, and the morphology and size of the as obtained VO2(M) nanobelts are dependent on that of the precursor VO2(B). The phase transition temperature (T-c) of W-cloped VO2(M) can be tuned by W doping. The variable temperature IR reveals that the as synthesized W-cloped VO2(M) nanobelts have outstanding thermochromic characters and optical switching properties. (C) 2013 Elsevier Ltd. All rights reserved.