柔性衬底上三氧化钼正方形纳米片的低温制备及生长机制  

Low-temperate Synthesis and Growth Mechanism of MoO_3 Square Nanosheet on Flexible Substrate

作　　者：班冬梅[1] 王林茂[1] 洪丽[1] 潘孟美[1] 傅军[1] 

机构地区：[1]海南师范大学物理与电子工程学院,海南海口571158

出　　处：《海南师范大学学报（自然科学版）》2011年第2期159-162,共4页Journal of Hainan Normal University（Natural Science）

基　　金：海南师范大学博士基金资助项目(00203020218)

摘　　要：采用热蒸发方法,以红外烧结炉为制备仪器,在聚酰亚胺柔性衬底上制备正方形纳米片.通过扫描电子显微镜、X-射线衍射谱表征产物的形貌、尺寸、成分及物相,并对纳米片的形成机理进行了探讨分析.研究表明,此纳米片为三氧化钼(MoO3)的正交结构.生长时间、衬底和蒸发源的间距对纳米片的尺寸有显著的影响.生长时间越长,衬底和蒸发源间距越小,纳米片的尺寸越大.Square nanosheets were synthesized on flexible Polyimide（PI） substrate with infrared sintering furnace via thermal evaporation method.The morphology,size,composition,and phase structure of nanosheet were characterized by scanning electron microscopy（SEM） and X-ray diffraction（XRD）.The nanosheets are MoO3 orthorhombic structure.The formation mechanism was discussed in detail.The results show that the sizes of the as-prepared nanosheet are dependence of growth duration and the distance between the substrate and evaporation source.The size increased with increase of the growth duration,with decrease of the distance between substrate and evaporation source.

关 键 词：三氧化钼 纳米片 合成 生长机制 

分 类 号：TB139.1[理学—物理]