High vacuum evaporation (VE) is used for the first time to grow thin films of novel tetraphosphonate, Tiiii[H, CH3, Ph], and tetrathiophosphonate, TSiiii[H, CH3, Ph], cavitands for gas sensing applications. The sensing capabilities of the samples were investigated by exposing Tiiii- and TSiiii-coated QCMs to very low concentrations of ethyl alcohol. The sensitivity, the speed (t50 = 5 s for both the samples) and the detection limit (0.4 ppm for Tiiii and 2.5 ppm for TSiiii) of the samples were determined, indicating highly competitive sensing capabilities. © 2010 Springer Science+Business Media B.V.
Novel vacuum evaporated cavitand sensors for detecting very low alcohol concentrations / Tonezzer, M.; Maggioni, G.; Melegari, M.; Dalcanale, E.. - 54:(2010), pp. 161-164. (Intervento presentato al convegno 14th Italian Conference on Sensors and Microsystems, AISEM 2009 tenutosi a Pavia, ita nel 2009) [10.1007/978-90-481-3606-3_29].
Novel vacuum evaporated cavitand sensors for detecting very low alcohol concentrations
Melegari M.;Dalcanale E.
2010-01-01
Abstract
High vacuum evaporation (VE) is used for the first time to grow thin films of novel tetraphosphonate, Tiiii[H, CH3, Ph], and tetrathiophosphonate, TSiiii[H, CH3, Ph], cavitands for gas sensing applications. The sensing capabilities of the samples were investigated by exposing Tiiii- and TSiiii-coated QCMs to very low concentrations of ethyl alcohol. The sensitivity, the speed (t50 = 5 s for both the samples) and the detection limit (0.4 ppm for Tiiii and 2.5 ppm for TSiiii) of the samples were determined, indicating highly competitive sensing capabilities. © 2010 Springer Science+Business Media B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
