Alcohol Sensor Based on a Single Ultralong p-Type Tellurium Micrometer Wire
Alcohol sensor based on a single ultralong tellurium micrometer wire has been prepared. The alcohol sensor device consists of a quartz plate substrate with a single tellurium micrometer wire placed on its surface and bonded by silver paste. This sensor presents different shape I–V behaviors in water, ethanol, methanol, and isopropanol due to their different abilities for providing free electric electrons. The response time is rapid in methanol and the current decreases by three orders of magnitude. The sensor also presents different shape I–V behaviors in different concentrations of alcohol aqueous solution. The current decrease with the contents of ethyl alcohol increase exponentially.
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Document Type: Research Article
Publication date: December 1, 2014
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