Karakterisasi Arus dan Tegangan Detektor Gas Hidrogen dari Bahan Semikonduktor Heterokontak TiO2/ZnO(Mg)

Abstract

, TiO 2 /ZnO doped with 2% mole Mg showed the highest selectivity, which is 1.54 at a given voltage of 30 volt. Conductivity of detectors have been calculated, with of which TiO 2 /ZnO doped with 6% mole Mg showed the highest conductivity 18.54/ Ωm in hydrogen environment. Response time of TiO 2 /ZnO doped with 4% mole Mg is 42 s. XRD results showed that ZnO doped with Mg have lower crystal size compared with undoped ZnO.