Chemosensitive properties of electrically conductive Cu(I)-compounds at room temperature

  • Changes of the electrical conductance of a number of inorganic copper(I) conductive compounds including Cu₁₂Sb₄S₁₃,CU₂O, CuI, CuBr and CuCl were tested on exposure to different gases and vapors, including ammonia, nitrogen monoxide, octanethiol, hydrogen chloride, acetic acid, formic acid, ethanol, humidity and piperidine. The sensitivity of the resistivity to ammonia was estimated as 2.7%/ppm for CuBr,1.4%/ppm for Cu₂O, 1.2%/ppm for CuCl, 0.013%/ppm for CuI, but only 0.0028%/ppm for Cu₁₂Sb₄S₁₃. The highest selectivity for ammonia was observed for Cu₁₂Sb₄S₁₃. The sensitivity patterns of these materials to the tested gases and vapors are very different which makes them applicable for sensor arrays for identification and quantification of these species.

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Metadaten
Author: Benjamin Wolpert, Michael Leitl, Arno Pfitzner, Vladimir M. MirskyORCiDGND
DOI:https://doi.org/10.1016/j.snb.2008.06.047
ISSN:0925-4005
Title of the source (English):Sensors and Actuators B: Chemical
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2008
Tag:Ammonia sensor; Chemical sensor; Chemoresistor; Conductometric sensor; Copper(I); Gas sensor
Volume/Year:134
Issue number:2
First Page:839
Last Page:842
Faculty/Chair:Fakultät 2 Umwelt und Naturwissenschaften / FG Nanobiotechnologie
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