Gas Sensors Based on ZnO Structures
P. Struka, T. Pustelnya, K. Gołaszewskab, M.A. Borysiewiczb, and A. Piotrowskab
aDepartment of Optoelectronics at Faculty of Electrical Engineering, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland
bInstitute of Electron Technology, al. Lotników 32/46, 02-668 Warsaw, Poland
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The paper presents the results of investigations concerning sensor structures based on porous layers of zinc oxide (ZnO) sensitive to a selected gaseous environment. The investigations comprised analyses of the influence of the gaseous environment on the optical properties of a sensor structure, in particularly on the change of the spectral characteristics of optical transmission within the range of ultraviolet light and in the visible range. These presented investigations were carried out in such a gaseous environment as nitrogen dioxide NO2 in synthetic air.

DOI: 10.12693/APhysPolA.124.567
PACS numbers: 42.25.Hz, 42.25.-p, 42.82.Et, 68.35.Ct