In2O3-ZnO pyramids like structure prepared by Spray-pyrolysis Technique for gas Sensing Applications

  • Ismaail K. Jasim Department of Physics, College of Education for Pure Science, University of Tikrit, Tikrit, Iraq
  • Isam M. Ibrahim Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq
  • Marwan K. Alyas Department of Physics, College of Education for Pure Science, University of Tikrit, Tikrit, Iraq

Abstract

Polycrystalline Indium oxide (In2O3) and Indium oxide-zinc oxide (IZO) thin films mixed with 10% ZnO content were prepared by spray-pyrolysis technique at relatively low substrate temperature (150 ˚C).Field emission scanning electron microscope (FE-SEM) shows that the nanostructure at 10% ZnO content has pyramid like structure. The hall effect measurements show that the prepared samples have n-type charge carriers .The films were examined as gas sensor against H2S gas at different operating temperatures (200, 250 and 300) oC, and it was found that the IZO sample a good sensitivity to H2S gas ~ 572 % at operating temperature 200 oC, with relatively fast response time of 19 s and recovery time of 17 s.

Published
Jan 29, 2018
How to Cite
JASIM, Ismaail K.; IBRAHIM, Isam M.; ALYAS, Marwan K.. In2O3-ZnO pyramids like structure prepared by Spray-pyrolysis Technique for gas Sensing Applications. Iraqi Journal of Science, [S.l.], p. 67-74, jan. 2018. ISSN 2312-1637. Available at: <http://scbaghdad.edu.iq/eijs/index.php/eijs/article/view/111>. Date accessed: 15 nov. 2018.
Section
Physics