p-Type doping of GaAs(001) layers grown by MBE using silicon as a dopant

被引:13
|
作者
Quivy, AA [1 ]
Sperandio, AL [1 ]
da Silva, ECF [1 ]
Leite, JR [1 ]
机构
[1] Univ Sao Paulo, Inst Fis, Lab Novos Mat Semiconductores, BR-05315970 Sao Paulo, Brazil
基金
巴西圣保罗研究基金会;
关键词
GaAs layer; silicon; dopant;
D O I
10.1016/S0022-0248(99)00325-5
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
For the first time, a thick p-type GaAs layer was successfully grown by molecular beam epitaxy on a GaAs(0 0 1) substrate using Si as the dopant. A hole concentration in the range of 10(18) cm(-3) was achieved by a nonconventional growth method involving the supply of a few monolayers of Ga atoms together with the dopant (the As-4 cell was shuttered), followed by annealing in As-4 (the Ga and Si cells were shuttered). The repetition of this sequence led to a thick p-type layer as shown by Hall and photoluminescence measurements. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:171 / 176
页数:6
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