湿度对掺金三氧化钨工艺参数的影响

P. Halek, G. Halek, H. Teterycz
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引用次数: 0

摘要

介绍了用硅钨酸和氯金酸制备掺金三氧化钨的方法。用扫描电镜观察了该气敏材料的微观结构。在较宽的温度和湿度范围内研究了材料的电参数。实验结果表明,湿度对传感材料的电导率既有提高作用,也有降低作用。变化的方向取决于发生在材料上的主导效应。
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Influence of humidity on parameters of gold doped tungsten trioxide
A preparation method of gold doped tungsten trioxide using silicotungstic acid and chloroauric acid is shown in this work. The microstructure of this gas sensing material was investigated under a scanning electron microscope. Electrical parameters of the material were study in a width range of temperatures and humidity. The obtained results reveal, that the humidity can both increase and decrease the conductivity of the sensing material. The direction of the changes depend on the dominant effect occurring at the material.
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