摘要
用射频反应溅射的方法制备了TiN薄膜,其晶体结构与电阻率都与溅射气氛中N2分量有直接关系。随着N2分量由5%增加到50%,薄膜先是呈现(111)的择优取向,后是呈现(200)的取向,最后没有衍射峰出现,结构趋于无定型,于此同时,电阻率也由接近金属的良好导电性变为半导体的导电性。
Titanium nitride film has been grown on glass substrate by RF reactive sputtering with a mixture of high purity argon and nitrogen used as sputtering and reactive gases, respectively. The morphology of the films grown at different nitrogen partial pressure, has been studied with X-ray diffraction (XRD). It is found that nitrogen partial pressure has significantly effect on the microstructures and resistivity of the films. As N2 partial pressure increases from 5% to 50% the δ-TiN (111) was first observed, showing the preferential growth orientations of the grains; then δ-TiN (200) can be seen; and finally, the film became amorphous. At the same time, the resistivity of the films varied from metallic to semiconductor.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A06期2346-2347,共2页
Journal of Functional Materials
基金
基金项目:湖北省自然科学基金资助项目(2006ABA215)
关键词
射频反应溅射
TIN
氮分压
电导率
RF reactive sputtering
titanium nitride
nitrogen partial pressure
electrical resistivity