电化学沉积制备二氧化钒反蛋白石光子晶体  

Fabrication of VO_2 Inverse Opal Photonic Crystal by Electrodeposition

作　　者：涂圣义[1] 许静[1] 谢凯[1] 李宇杰[1] 梁国杰[1] 李运鹏[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073

出　　处：《人工晶体学报》2008年第4期913-917,共5页Journal of Synthetic Crystals

摘　　要：通过电化学沉积方法向PS胶体晶体模板缝隙中填充五氧化二钒，焙烧去除模板后，在真空度小于10^-2Pa，温度510℃下退火12h，得到具有特定应用价值的二氧化钒反蛋白石（opal）光子晶体。用扫描电镜观察样品的微观形貌，用X射线衍射分析样品成份。实验结果表明，通过电化学沉积制备出的二氧化钒反蛋白石光子晶体，相变电阻突变数量级在2～3之间，相变温度62℃左右。Electrodeposition was used to fill the interstitial space of self-assembly PS colloidal crystallization with V205. After removal of the template, VO2 inverse opal photonic crystal was fabricated by vacuum annealing about 12 h at T=510℃ and constant total pressure below 0. 01 Pa. The morphologies and structure of the samples were characterized by scanning electron microscopy and X-ray diffraction. The results show that the VO2 photonic crystal obtained has ordered porous structure. After phase transition, the resistance of VO2 photonic crystal changes about 10^2 ~ 10^3 orders. The phase transition temperature of VO2 photonic crystal was about 62℃.

关 键 词：电化学沉积 真空退火 二氧化钒 光子晶体 反蛋白石 

分 类 号：O78[理学—晶体学]