WO3基气致变色薄膜结构可控生长与循环稳定机制研究

项目名称： WO3基气致变色薄膜结构可控生长与循环稳定机制研究

项目编号： No.51272179

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 吴广明

作者单位： 同济大学

项目金额： 85万元

中文摘要： 随着经济社会的快速发展，节能减排越发重要。建筑是高能耗单元，玻璃窗体是建筑能耗的主要部件，发展一种适合我国四季分明特点、光学特性随季节变化可人为调节的节能智能玻璃窗势在必行。采用溶胶凝胶技术低成本工业化生产气致变色节能智能窗最具有应用前景。本项目采用溶胶-凝胶方法，通过控制WO3共边、六角相与纳米团簇多孔等微结构，结合纳米掺杂复合和低表面张力溶剂修饰替换、紫外光与气体混合后处理，研究WO3共边、六角相与纳米团簇多孔微结构的可控生长与稳定机制、致色/退色过程中氢、氧原子与WO3的相互作用、共边与六角相及纳米团簇多孔结构的演变、致/退色循环耐用性能衰减机制与抑制机理、纳米掺杂复合的协同作用机制等，研制出节能效果好、灵敏高、响应快、寿命长的大尺度（大于100×100 cm2）WO3基气致变色节能智能玻璃窗，不仅可丰富纳米多孔结构表面与界面作用理论，而且可形成一种建筑节能智能玻璃窗新材料和技术。

中文关键词： 气致变色；薄膜；结构控制；介孔；节能

英文摘要： With the rapid economic and social development, energy conservation is becoming more and more important. Buildings are high energy consumption units most of which are contributed by glass windows. Thus, it is quite imperative to develop a new kind of energy-saving smart windows of which the energy-saving effect can be artificially adjusted according to seasonal changes. Among the smart windows, low-cost gasochromic windows prepared via sol-gel technology have been recognized to be one of the most promising industrial applications. This project based on Sol-Gel method is going to investigate the mechanism of growth and stability control of WO3 edge-sharing ,hexagonal phase and nanocluster porous microstructures, the interaction between the hydrogen/oxygen atoms and WO3 during coloring/bleaching processes, the transformation of WO3 edge-sharing structure, hexagonal phase and nanocluster porous structures, the mechanisms of the fading and inhibition of switching stability, the cooperation effect of nano composite doping, through the control the WO3 edge-sharing structure, the hexagonal phase nanocluster porous micro-structure, combined with doping of nano materials, modified replacement of low surface tension solvent, and post treatment of UV and gas mixture. According to these studies, a kind of energy saving,

英文关键词： gasochromic；thin films；structure control；mesoporous；energy saving