摘要:利用直流磁控溅射技术在P型Si(100)衬底上制备了TiO_2薄膜,将制备好的TiO_2薄膜分别在700、800、900、1000、1100℃下空气中退火1 h.采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、安捷伦半导体器件分析仪对薄膜样品进行表征.XRD测试结果表明:原样品为锐钛矿相结构,随着退火温度的升高,样品由锐钛矿相结构逐渐转变为金红石相结构,而经900、1000、1100℃退火后样品为金红石相结构,且退火后样品的晶粒尺寸明显增大;电学性能测试表明:退火后的TiO_2薄膜样品构成的MOS器件漏电流密度很小,即制备的TiO_2薄膜样品在MOS器件制备与应用领域有很好的前景.
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