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Microfabrication of Thermoelectric Hydrogen Sensor using KOH solution etching

机译:使用KOH溶液蚀刻的热电氢传感器的微制造

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Micromachined sensors are a new generation of sensor technology combining existing integrated circuit fabrication technology with novel deposition and etching processing. In the viewpoint of low-power operation, high sensitivity and fast response speed of thermoelectric hydrogen sensor (THS), we prepared the micromachined thermoelectric hydrogen sensor (micro-THS) with the combination of the thermoelectric effect of SiGe thin film and the Pt-catalyzed exothermic reaction of hydrogen oxidation. The power consumption of the micro-THS was greatly reduced to be 50 mW for 100 °C operating, by the Pt-micro-heater on single membrane. The micro-THS with 40 wt.% Pt/alumina catalyst showed voltage signal of 10 mV for 1 % H{sub}2 in air.
机译:微机械传感器是一种新一代传感器技术,结合了具有新型沉积和蚀刻加工的现有集成电路制造技术。在低功率操作的观点出发,热电氢传感器(THS)的高灵敏度和快速响应速度,我们用SiGe薄膜的热电效应的组合制备了微机械的热电氢传感器(微动脉)和PT-催化氧化的放热反应。通过单个膜上的PT微加热器,微长度的功耗大大降低为100°C操作的50 MW。具有40重量%的微约30重量%。%Pt /氧化铝催化剂在空气中显示出10mV的电压信号为1%H {um} 2。

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