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报道了用喷雾热分解法在不同温度下制备二氧化锡薄膜， 发现其在３２５℃时已晶化， 得到四方相多晶ＳｎＯ２。这种薄膜具有明显湿敏效应。测量表明， 较高湿度区阻值随湿度变化近似线性， 从高湿到低湿平均为每上升１％ ＲＨ， 阻值下降８．８Ω， 响应速度小于１ 分钟， 阻值恢复较容易
It was reported that a thin film of tin dioxide was prepared by spray pyrolysis at different temperatures and was found to crystallize at 325 ° C to produce tetragonal polycrystalline SnO2. This film has a significant moisture-sensitive effect. Measurements showed that the resistance of the higher humidity region changed linearly with humidity, rising 1% RH from high humidity to low humidity, the resistance decreased by 8.8Ω, and the response speed was less than 1 minute, the resistance recovery was easier