A printed H₂S sensor with electro-optical response

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• 作者：J. Sarfraz ; P. Ihalainen ; A. M盲盲tt盲nen ; T. Gulin ; J. Koskela ; C.-E. Wil茅n ; A. Kilpel盲 ; J. Peltonen
• 关键词：Sensor ; Hydrogen sulfide ; Copper acetate ; Printed
• 刊名：Sensors and Actuators B: Chemical
• 出版年：February, 2014
• 年：2014
• 卷：191
• 期：Complete
• 页码：821-827
• 全文大小：2017 K

文摘

This study investigates the performance of a printed copper acetate based H₂S sensor with irreversible electro-optical response. The sensitivity, long term stability, humidity effects, cross-sensitivity and selectivity of the H₂S sensor were studied. High sensitivity, room temperature operation, good selectivity and reproducibility of the sensor make it a promising candidate for industrial use for example in the food packaging industry and in environmental monitoring. Furthermore, a simple optical indicator based on copper acetate for H₂S sensing is also presented. The indicator was calibrated using grey scale for different concentrations of H₂S.