Article ID Journal Published Year Pages File Type
741124 Sensors and Actuators B: Chemical 2008 4 Pages PDF
Abstract

We report fabrication and characterization of an ethanol sensor using aligned ZnO nanorods. The ZnO nanorods have an average diameter of 50 nm and an average length of 0.5 μm. The sensor response Ra/Rg, where Ra and Rg are the resistance in air and in ethanol vapor, respectively, is about 10 to 1 ppm ethanol, and increases to about 100 as the ethanol concentration is raised to 100 ppm. The mechanism of the highly sensitive ethanol detection is discussed.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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