Influence of Doping Content and Sputtering Parameter on Resistivity and Transmittancce of ZnO : Al Thin Films Prepared by DC Magnetron Sputtering at Room Temperature
REN Ming-fang;WANG Hua;XU Ji-wen;YANG Ling. Influence of Doping Content and Sputtering Parameter on Resistivity and Transmittancce of ZnO : Al Thin Films Prepared by DC Magnetron Sputtering at Room Temperature[J]. 液晶与显示, 2009,24(1): 52-56
REN Ming-fang;WANG Hua;XU Ji-wen;YANG Ling. Influence of Doping Content and Sputtering Parameter on Resistivity and Transmittancce of ZnO : Al Thin Films Prepared by DC Magnetron Sputtering at Room Temperature[J]. 液晶与显示, 2009,24(1): 52-56DOI:
ZnO : Al (ZAO) thin films based on Al doped ZnO ceramic target were prepared on slide glass substrates by DC magnetron sputtering at room temperature. The effects of Al doping content and sputtering parameter on electrical and optical properties of ZAO thin films were investigated. The experimental results show that both the Al content and process parameters have a great influence on electrical property. When the Al content is 3%
the sputtering power is 100 W
the argon gas pressure is 1.5 Pa
ZAO thin films have a lowest resistivity of 1.410
-3
cm. The Al doping content and process parameters had a little influence on transmittance
and the average transmittances of ZAO thin films were from 86% to 90%
but the absorption edge has a blue shift with the increase of doping level and argon gas pressure. According to the analyses of FOM (figure of merit ) of ZAO
an argon pressure of 0.6~2.0 Pa is appropriate for ZAO thin films deposited by DC magnetron sputtering at room temperature.
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