Valence control method of co-doping for the fabrication of metallic silicon from the first-principles calculations

被引:13
作者
Kawasaki, T [1 ]
Katayama-Yoshida, H [1 ]
机构
[1] Osaka Univ, Inst Sci & Ind Res, Dept Condensed Matter Phys, Ibaraki, Osaka 5670047, Japan
关键词
boron; silicon; valence control; first-principles calculation;
D O I
10.1016/S0921-4526(01)00422-7
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We propose the co-doping method for the fabrication of p-type Si as low-resistive as metals. This method is the doping method in which two sorts of element are doped into host crystal simultaneously. The optimal configurations for B/Ge, B/P in Si were studied by the first-principles calculation. It was found that an energy gain is obtained as Ge or P atoms are placed nearby a B atom. This result indicates that the solubility limit of B increases. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:163 / 165
页数:3
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