Growth and properties of ZnO nanorods by RF-sputtering for detection of toxic gases
Authors: Baratto C.
Autors Affiliation: CNR INO, Via Branze 45, Brescia, Italy
Abstract: There is a strong demand for nanostructured materials prepared by an industrially-scalable technique. The current work is devoted to the preparation of ZnO polycrystalline nanorods using RF sputtering at 400 degrees C and Sn droplets as a catalyzer layer, for highly sensitive gas sensors. Nanorods with diameters ranging from 100 to 200 nm can be tailored by changing the RF power and the deposition time. Raman and PL spectroscopy indicate that the material obtained is ZnO, with a characteristic emission spectrum in the UV region and in the visible. The functional properties of the ZnO nanorods were investigated by studying the response to CBRN (acetonitrile and DMMP), explosive (H-2), and pollutant gases (H2S, acetone, and NO2) in the temperature range 200-500 degrees C. The sensors showed good response to reducing gases at higher temperatures (500 degrees C) and to NO2 at lower temperature (200 degrees C).
Journal/Review: RSC ADVANCES
Volume: 8 (56) Pages from: 32038 to: 32043
More Information: 9085043. The current work was supported by project NANEOS, financed by NATO SPS Programme under grant no. 9085043KeyWords: light-emitting diode; thin-film; nanowire; nanostrucutres; luminescenceDOI: 10.1039/c8ra05357jCitations: 19data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-12-04References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here