LIQUID-PHASE EPITAXY AND CHARACTERIZATION OF SI1-XGEX LAYERS ON SI SUBSTRATES

被引:37
作者
HANSSON, PO [1 ]
WERNER, JH [1 ]
TAPFER, L [1 ]
TILLY, LP [1 ]
BAUSER, E [1 ]
机构
[1] MAX PLANCK INST FESTKORPERFORSCH,W-7000 STUTTGART 80,GERMANY
关键词
D O I
10.1063/1.346572
中图分类号
O59 [应用物理学];
学科分类号
摘要
Liquid-phase epitaxy allows SiGe alloys of good quality to be grown on Si substrates. We deposit single crystalline, n-type Si1-xGex films with 0.7<x<1 from Bi solutions on (111)-oriented Si. The films are up to several μm thick and are uniform in thickness and in composition. The analysis by x-ray diffraction indicates good crystallinity and a dislocation density below 5×107 cm-2. Photoluminescence measurements show well-resolved peaks with the smallest linewidths reported so far for epitaxial SiGe. Hall-effect measurements yield electron concentrations around 1×1016 cm-3 and room-temperature electron mobilities of up to 340 cm2/V s.
引用
收藏
页码:2158 / 2163
页数:6
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