Effects of a two-step rapid thermal annealing process on Mg-doped p-type GaN films grown by metalorganic chemical vapor deposition

被引:9
作者
Ahn, KS [1 ]
Kim, DJ [1 ]
Moon, YT [1 ]
Kim, HG [1 ]
Park, SJ [1 ]
机构
[1] Kwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2001年 / 19卷 / 01期
关键词
D O I
10.1116/1.1338554
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
A two-step rapid thermal annealing (RTA) process is proposed in order to improve the electrical properties, the crystal quality, and the surface roughness of Mg-doped p-type GaN films. In the two-step RTA process, the first low temperature step (600 degreesC) with a long annealing time (5 min) was followed by the second high temperature (950 degreesC) step With a short annealing time. These results show that the two-step RTA process significantly improves electrical properties and reduces the surface roughness of p-GaN compared to the one-step RTA process. (C) 2001 American Vacuum Society.
引用
收藏
页码:215 / 218
页数:4
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