采用射频磁控溅射工艺在玻璃衬底上制备出c轴择优取向的ZnO:Al(AZO)透明导电薄膜,靶材为AZO(2%质量分数Al2O3)陶瓷靶。对在不同溅射功率下沉积出来的薄膜运用X射线衍射(XRD)、可见光区透射谱、四探针方法分别进行结构和光电特性的表征。得出在200W下沉积的膜性能最好,可见光区平均透过率达到89%以上,电阻率最低为9.3×10^-4Ω·cm。
Al-doped ZnO thin films were deposited on the glass substrate by RF magnetron sputtering with ZnO target mixed with Al2O3 (2wt%). The effects of RF power on the structural, electrical and optical properties of AZO film were investigated. X-ray diffraction spectrum showed that the AZO film with the hexagonal crystal structure was polycrystalline and had a strongly preferred orientation of c axis. The visible transmittance of above 89 % and the minimum specific resistance of 9.3 × 10^-4 Ω· cm were obtained.