• Media type: E-Article
  • Title: The effects of deposition rate on the structural and electrical properties of ZnO:Al films deposited on (112̄0) oriented sapphire substrates
  • Contributor: Igasaki, Yasuhiro; Saito, Hiromi
  • imprint: AIP Publishing, 1991
  • Published in: Journal of Applied Physics
  • Language: English
  • DOI: 10.1063/1.349258
  • ISSN: 0021-8979; 1089-7550
  • Origination:
  • Footnote:
  • Description: <jats:p>Aluminum doped zinc oxide (ZnO:Al) films were deposited on (112̄0) oriented sapphire substrates heated to 200 °C with a radio-frequency (rf) power ranging from 25 to 170 W for a deposition rate in the range 0.7–27.4 nm min−1 by rf-magnetron sputtering from a ZnO target mixed with Al2O3 of 2 wt. %. All of the films deposited were (0001) oriented single-crystalline films with an internal stress. The stress was increased and degraded the crystallinity of the epitaxial film as a deposition rate was increased, and thus the Hall mobility and the resistivity of the film were, respectively, decreased and increased. However, the resistivities obtained were in the range about 1.4–3.0×10−4 Ω cm, the values comparable to those for indium tin oxide film presently used as a transparent electrode.</jats:p>