Copper doped SnO2 nanowires as highly sensitive H2S gas sensor

Tin oxide thin films prepared by aerosol-assisted chemical vapor deposition and the characteristics on gas detection

“…There are several methods to prepare SnO 2 thin films, such as evaporation [12,13], sputtering [14,15], and sol-gel route [16][17][18][19]. Various elements of Cu [20], Pd [3], In [21] are doped into the films to enhance the characteristics of thin films. The response, selectivity, recovery ability and operating temperature are concerned as the most important factors.…”

Single step synthesis of SnO2–SiO2 core–shell microcables

“…where a is the absorption coefficient, E gap is the optical band gap, hn is the energy of incident photon and B is a constant [28]. The plot of (ahn) 2 vs photon energy is shown in Fig.…”

Formation of Oxide Nanowires by Thermal Evaporation and Their Application to Gas Sensors

“…Structure and gas sensing properties of nanowire sensors 3.1 SnO 2 nanowires formed by vapor transport SnO 2 is the gas sensing material that has been most extensively studied (Windischmann & Mark, 1979;Heiland, 1982;Tamaki et al, 1989). SnO 2 nanowires have also recently been studied vigorously as a gas sensing material (Ramirez et al, 2007;Kumar et al, 2009). In addition to undoped SnO 2 nanowires, we investigated Pd-doped and Pt-doped nanowires, for noble metal doping such as Pd or Pt often improves sensitivity by activating the surface reaction of the gas sensing materials (Yamazoe et al, 1983;Tsang et al, 2001).…”