Abstract
The work studied the effect of various media (water vapor, ammonia, and isopropanol in air) on the electrical characteristics of ZnO thin films. In all cases, changes in the electrical characteristics of the films were observed, but the nature of these changes was different. In the presence of ammonia vapor at room temperature, the film current almost doubled. Moreover, the adsorption process is more inertial than the desorption one. The same films at room temperature do not react to propanol vapors in the ambient air. At a temperature of 373 K, the sensitivity to propanol increases considerably. Films are sensitive to moisture at room temperature. However, in comparison with the reaction to ammonia, the reaction to water vapor is more inertial and the sensitivity is lower. The difference in the values and temperatures of the sensitivity of zinc oxide films to different adsorbates allows us to consider them as sensitive elements for multisensors.
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Chebanenko, A.P., Filevska, L.M., Grinevych, V.S., Smyntyna, V.A. (2023). Electrical Characteristics of Nanosized ZnO Films, Obtained Using Polyvinyl Alcohol, in Different Atmospheres. In: Fesenko, O., Yatsenko, L. (eds) Nanomaterials and Nanocomposites, Nanostructure Surfaces, and Their Applications . Springer Proceedings in Physics, vol 279. Springer, Cham. https://doi.org/10.1007/978-3-031-18096-5_17
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