Abstract

Al-doped ZnO thin films were deposited with various Ar flow rate by RF magnetron sputtering, and theire properties were studied. A high-quality thin film was obtained by controlling the Ar flow rate, and the influence of the Ar flow rate on the Al-doped ZnO thin film was confirmed. In all Al-doped ZnO thin films, light transmittance had above 80%. Through Hall measurement and X-ray photoelectron spectrometer, the sample of 60 sccm, which had the lowest resistivity, showed the lower Al concentration. This result was attributed to oxygen vacancy rather than Al concentration.

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