【摘要】 采用以乙醇为溶剂的溶剂热法制备ITO纳米粉体,考察了溶剂热反应条件对ITO粉体导电性能的影响。研究表明:当反应温度低于250℃时得到的粉体为InOOH或In4Sn3O12和InOOH的混合物,在250和270℃下反应可得立方结构的ITO纳米粉体;粉体的电阻率随溶剂热反应温度和反应时间的增加而增大;ITO粉体电阻率随着共沉淀pH值的增大逐渐减小;ITO粉体电阻率随SnO2含量的增加先减小后增大,当SnO2掺杂比例为8%左右时,电阻率最低。更多还原

【Abstract】 Indium tin oxide(ITO) nanopowder was prepared in ethanol solvent by solvothermal process.The influence of solvothermal conditions on electric performance of ITO nano-powders was investigated.The prepared products were InOOH or mixture of InOOH and In3Sn4O12 when the solvothermal temperature was below 250 ℃.ITO nanopowders with cubic structure could be prepared at 250 and 270 ℃.ITO powders′ resistivity gradually reduced with the increase of coprecipitation pH value,the solvothermal temperature and time.Powders′ resistivity firstly reduced and then increased with the SnO2 content rising.The resistivity was the lowest at SnO2 content of 8%.更多还原