Properties of crystallized Si1-xGex thin films deposited by sputtering

被引:46
作者
Jelenkovic, EV
Tong, KY
Sun, Z
Mak, CL
Cheung, WY
机构
[1] HONG KONG POLYTECH UNIV, DEPT APPL PHYS, HONG KONG, HONG KONG
[2] CHINESE UNIV HONG KONG, DEPT ELECT ENGN, HONG KONG, HONG KONG
[3] CHINESE UNIV HONG KONG, MAT TECHNOL RES CTR, HONG KONG, HONG KONG
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A | 1997年 / 15卷 / 06期
关键词
D O I
10.1116/1.580836
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Si1-xGex were deposited by a radio frequency magnetron sputtering system and were furnace crystallized at a temperature of 550 degrees C. The crystallization process was characterized by x-ray diffraction (XRD), Raman spectra, electron spin resonance transmission electron microscopy. The effect of germanium content in the films was studied for samples with germanium from 19% to 53%. Doping of Si1-xGex films by phosphorous was investigated through measurement of sheet resistance and carrier mobility. It was found that sputtered Si1-xGex films can be useful for thin film transistors with low temperature budget. No significant clustering of pure Ge or Si in Si1-xGex films was deduced from the recorded XRD and Raman spectra. (C) 1997 American Vacuum Society. [S0734-2101(97)02706-1].
引用
收藏
页码:2836 / 2841
页数:6
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