中国物理B ›› 2013, Vol. 22 ›› Issue (11): 116804-116804.doi: 10.1088/1674-1056/22/11/116804
• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇 下一篇
刘智, 成步文, 李亚明, 李传波, 薛春来, 王启明
Liu Zhi (刘智), Cheng Bu-Wen (成步文), Li Ya-Ming (李亚明), Li Chuan-Bo (李传波), Xue Chun-Lai (薛春来), Wang Qi-Ming (王启明)
摘要: Tensile strain, crystal quality, and surface morphology of 500 nm thick Ge films were improved after rapid thermal annealing at 900 ℃ for a short period (< 20 s). The films were grown on Si(001) substrates by ultra-high vacuum chemical vapor deposition. These improvements are attributed to relaxation and defect annihilation in the Ge films. However, after prolonged (>20 s) rapid thermal annealing, tensile strain and crystal quality degenerated. This phenomenon results from intensive Si–Ge mixing at high temperature.
中图分类号: (Semiconductors)