Structural, Morphological and Sensor Properties of the Fractal-Percolation Nanosystem ZnO/NiO

Kornyushchenko A.; Kosminska Y.; Stas S.; Wilde G.; Perekrestov V.

Forschungsartikel (Zeitschrift) | Peer reviewed

Zusammenfassung

ZnO/NiO fractal-percolation nanosystems have been sensitized using a newly developed three-step technology. During the first stage, ionically sputtered Zn vapors have been deposited under near-equilibrium condensation conditions. In the second stage, Zn layers have been oxidized in air atmosphere, and during the final stage, a NiO layer has been deposited onto the ZnO surface using reactive magnetron sputtering. Gas sensor tests have been performed by measuring current–voltage characteristics of the fractal-percolation nanosystems in air containing methanol or methane. It has been shown that the shape of the I–V curve depends on the reactive gas nature, rendering the possibility to differentiate between different gases, which is an important step to increase sensor selectivity.

Details zur Publikation

FachzeitschriftJournal of Electronic Materials
Jahrgang / Bandnr. / Volume50
Ausgabe / Heftnr. / Issue4
Seitenbereich2268-2276
StatusVeröffentlicht
Veröffentlichungsjahr2021
Sprache, in der die Publikation verfasst istEnglisch
DOI10.1007/s11664-021-08749-3
Link zum Volltexthttps://api.elsevier.com/content/abstract/scopus_id/85099920589
Stichwörtercharge transfer; current–voltage characteristics; gas sensor; NiO nanostructures; reducing gas; ZnO

Autor*innen der Universität Münster

Wilde, Gerhard
Professur für Materialphysik (Prof. Wilde)