W-doped VO2(M)with tunable phase transition temperature

摘要：

　　W-doped VO2 (B) nanoneedles were successfully synthesized by sol-gel combing with hydrothermal treatment, in which the polyethylene glycol (PEG) was used as both surfactant and reducing.The metastable VO2 (B) was completely transformed to thermochromic VO2 (M) after annealing at high purity N2 atmosphere.The DSC results exhibit a strong crystallographic transition, and the phase transition temperature of VO2 (M) can be reduced to about 38 ℃ by W-doping.Field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HR-TEM) were used to characterize the morphology and crystal line structure of the samples.The variable-temperature infrared transmittance spectra of VO2 (M) demonstrate their potential applications in energy saving field.

关键词： W-doped Nanoneedles Energy saving

作者: Ming Li Deng-bing Li Jing Pan Guang-hai Li

作者单位: Institute of Solid State Physics,Chinese Academy of Sciences,Hefei,P.R.China

会议类型: 国际会议

会议名称: 2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)

会议地点: 昆明

会议语种:英文

页码: 483-487

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）