Co掺ATO复合粉体自组装薄膜阵列的制备及其光学、磁学性能

Fabrication and Optical,Magnetic Properties of Self-assembled Films with Micro Needlelike Arrays of Co Doped ATO Composite

以SnCln·5H20、SbEl3为原料，采用共沉淀法成功制备出在微纳米级Co表面包裹AT0（掺锑二氧化锡）的复合粉体，然后将制备的复合粉体与氟碳树脂复合并在磁场作用下进行自组装形成微阵列结构，移除磁场后，微阵列结构保持不变。利用XRD、SEM、紫外一可见光分光光度计（UVPC）及振动样品磁强计（VSM）等测试方法对（Co／ATO复合粉体以及微阵列结构进行了表征与分析。讨论了不同ATO掺杂量对整个体系光学性能的影响，且当n（Co）／n（ATO）=1／2时，微阵列薄膜在300-2500nm波段的光学反射率低于0．5％。

Antimony doped tin oxide（ATO） powders were prepared by chemical co-precipitation method with SnC14 · 5H20 and SbC13 on the micro-nanoscale Co surface. Then the prepared composite powders with fluorocarbon （FC） resin, were fabricated by self-assembly under the magnetic filed, and structure retain when external magnetic filed is removed. Different measurements such as XRD, SEM, UVPC,VSM were performed to characterize composite powders and micro needlelike arrays. Based on the result of those measurements, the effects on reflection of doping amount of ATO were systematically investigated and the reflectance of the films with the needlike arrays was below 0. 5% in the range of 300--2500 nm when n（Co）/n（ATO） is 1/2.