Malarde Delphine, Powell Michael J, Quesada-Cabrera Raul, Wilson Rachel L, Carmalt Claire J, Sankar Gopinathan, Parkin Ivan P, Palgrave Robert G
Department of Chemistry, Materials Chemistry Centre, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
ACS Omega. 2017 Mar 20;2(3):1040-1046. doi: 10.1021/acsomega.7b00042. eCollection 2017 Mar 31.
Monoclinic vanadium(IV) oxide (VO) has been widely studied for energy-efficient glazing applications because of its thermochromic properties, displaying a large change in transmission of near-IR wavelengths between the hot and cold states. The optimization of the reaction between VCl and ethyl acetate via atmospheric-pressure chemical vapor deposition (APCVD) was shown to produce thin films of monoclinic VO with excellent thermochromic properties (Δ = 12%). The tailoring of the thermochromic and visible light transmission was shown to be possible by altering the density and morphology of the deposited films. The films were characterized by X-ray diffraction, atomic-force microscopy, scanning electron microscopy, ellipsometry, and UV-vis spectrometry. This article provides useful design rules for the synthesis of high-quality VO thin films by APCVD.
单斜晶系二氧化钒（VO）因其热致变色特性而被广泛研究用于节能玻璃应用，在热态和冷态之间近红外波长的透过率有很大变化。通过常压化学气相沉积（APCVD）优化VCl与乙酸乙酯之间的反应，结果表明可制备出具有优异热致变色特性（Δ = 12%）的单斜晶系VO薄膜。通过改变沉积薄膜的密度和形态，可实现热致变色和可见光透过率的定制。这些薄膜通过X射线衍射、原子力显微镜、扫描电子显微镜、椭偏仪和紫外-可见光谱进行表征。本文为通过APCVD合成高质量VO薄膜提供了有用的设计规则。
