Influences of Heat-Treatment on the Particle Size and Properties of Conductive Nanometer-Sized Antimony-Doped Tin Dioxide Powders
热处理对掺锑二氧化锡纳米导电粉粒度和性能的影响

Tin dioxide ultrafine powders used as transparent conductive films and conductive paints have extensive application prospects. Antimony-doped tin dioxide ultrafine powders in size of nanometers were prepared by chemical coprecipitation by using SnCl4·5H2O and SbCl3 as precursors with the doped concentration of Sb2O3:SnO2 =9:100(weight rate). The characteristics of the powders were investigated by differential scanning calorimetry and thermogravimetric analysis (DSC-TG), X-ray diffraction (XRD), transmission electron microscope (TEM) and ultraviolet spectrum analysis (UV). The influences of heating temperature and heating time on the particle size and powders resistance were researched. The reason of the powders emerging light blue was also derived.