Growth and properties of ZnO nanorods by RF-sputtering for detection of toxic gases
Autori: Baratto C.
Affiliazione autori: 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).
Giornale/Rivista: RSC ADVANCES
Volume: 8 (56) Da Pagina: 32038 A: 32043
Maggiori informazioni: 9085043. The current work was supported by project NANEOS, financed by NATO SPS Programme under grant no. 9085043Parole chiavi: light-emitting diode; thin-film; nanowire; nanostrucutres; luminescenceDOI: 10.1039/c8ra05357jCitazioni: 18dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2022-06-26Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui