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Orthogonal design for fabrication of transparent conductive ZnO:Al films by DC magnetron sputtering at low temperature

  • Beihang University
  • China Academy of Engineering Physics

Research output: Contribution to journalArticlepeer-review

Abstract

Based on orthogonal design, Aluminium-doped zinc oxide (ZnO:Al) films were prepared by D.C. reactive magnetron sputtering on glass substrate from an alloy target (Zn:Al 2wt%). The temperature of the sputtering chamber was kept at 50°C. Mathematical statistical method was employed to analyze the experimental results derived from optical and electrical measurements with spectrophotometer and Hall-effect measurement system. Dependences of the films' optical-electrical properties on the four main factors such as sputtering time, target-substrate distance, sputtering power, O2 flow rate were investigated respectively. The comprehensive optimal fabrication condition of ZAO films was obtained as well ultimately, that is 20min in sputtering time, 6cm in target-substrate distance, and 80W in sputtering power, 7percent in flow rate,-the corresponding film's φic value is 4.1050 × 10-2/Ω, resistivity is 3.9 × 10-4Ω·cm and 1.09 × 1021/cm3 of carrier concentration.

Original languageEnglish
Pages (from-to)369-372
Number of pages4
JournalGongneng Cailiao/Journal of Functional Materials
Volume38
Issue number3
StatePublished - Mar 2007

Keywords

  • Low substrate temperature
  • Magnetron sputtering
  • Orthogonal design
  • ZAO films

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