Experimental and theoretical study of the thermal solubility of the vacancy in germanium

被引：15

作者：

Vanhellemont, J. ^{[1
]}

Lauwaert, J. ^{[1
]}

Witecka, A. ^{[1
,2
]}

Spiewak, P. ^{[2
]}

Romandic, I. ^{[3
]}

Clauws, P. ^{[1
]}

机构：

[1] Univ Ghent, Dept Solid State Sci, B-9000 Ghent, Belgium

[2] Warsaw Univ Technol, Fac Mat Sci & Engn, Mat Design Div, PL-02507 Warsaw, Poland

[3] Umicore EOM, B-2250 Olen, Belgium

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 23-24期

关键词：

Group IV and compounds; Experiment; Ge; Point defects; DLTS; QUENCHED-IN ACCEPTORS; COPPER; GE;

D O I：

10.1016/j.physb.2009.08.121

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Quenching experiments are performed using state of the art p-type Czochralski-grown Ge samples. The vacancy formation energy and thermal equilibrium concentration are determined on the basis of resistivity changes measured after quenching, using van der Pauw and Hall measurements. The results are compared with previously published experimental data and with results from analytical and ab initio calculations of the formation energy of the vacancy in different charge states. The deep levels introduced during the quenching step are studied with deep level transient spectroscopy and with FTIR, revealing besides the typical quenching related defects which are probably connected with vacancies also the presence of Cu. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：4529 / 4532

页数：4

共 24 条

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[Anonymous], ECS T

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