ELECTRICAL PASSIVATION IN HYDROGEN PLASMA EXPOSED GAN

被引:31
作者
PEARTON, SJ [1 ]
ABERNATHY, CR [1 ]
REN, F [1 ]
机构
[1] AT&T BELL LABS,MURRAY HILL,NJ 07974
关键词
PLASMA DEPOSITION; PASSIVATION; MOLECULAR BEAM EPITAXIAL;
D O I
10.1049/el:19940327
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Lightly p-doped (3 x 10(17) cm-3) GaN grown on GaAs substrates by metal organic molecular beam epitaxy (MOMBE) shows deactivation of the residual acceptors on exposure to a microwave (2.45GHz) hydrogen plasma at 250-degrees-C. Subsequent annealing to 350-degrees-C produces further dopant passivation, while higher temperatures (450-degrees-C) restore the initial conductivity. These results suggest that hydrogen carrier gases should be avoided during vapour phase growth of III-V nitrides.
引用
收藏
页码:527 / 528
页数:2
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