用射频磁控溅射技术制备了高度择优取向的Al掺杂ZnO(ZAO)薄膜,并对薄膜在纯氩气中进行了400～600℃的退火处理.利用X射线衍射(XRD)、扫描电子显微镜(SEM)、X射线光电子能谱(XPS)、光谱仪和四探针测试仪等对退火前后薄膜进行了表征和光学、电学性能研究.研究表明,纯氩气中退火处理对ZAO薄膜的晶体、光学和电学性能有影响.原位沉积的薄膜电阻率2.59Ωcm,可见光区透过率约70%.500℃纯Ar气氛中退火1h后,ZAO薄膜的平均晶粒有所长大,薄膜内应力达到最小,接近于松弛状态;薄膜可见光区平均透过率从70%提高到80%左右;而薄膜的电阻率变化不明显,从2.59Ωcm降低到1.13Ωcm.
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