Growth of InGaN/GaN multiple quantum wells on size-controllable nanopyramid arrays

被引:5
作者
Miao, Cao [1 ]
Honda, Yoshio [1 ]
Yamaguchi, Masahito [1 ]
Amano, Hiroshi [1 ]
机构
[1] Nagoya Univ, Dept Elect Engn & Comp Sci, Akasaki Res Ctr, Nagoya, Aichi 4648603, Japan
关键词
LIGHT-EMITTING-DIODES; SELECTIVE-AREA GROWTH; GAN; OVERGROWTH; EPITAXY; FIELD;
D O I
10.7567/JJAP.53.030306
中图分类号
O59 [应用物理学];
学科分类号
摘要
Regularly distributed nanopyramid arrays with a highly uniform size were grown by selective-area growth. The nanopyramid size could be tuned by varying the growth time. Two emission peaks were observed from multiple quantum wells grown on the nanopyramids. The longer-wavelength peak originated from the apexes of pyramids with threefold symmetry. High-density stacking faults observed at these triangular apexes might be responsible for the higher indium incorporation. The formation of embedded voids inside the pyramids was explained by the different growth rates at the edge and center of the mask window caused by the low diffusion length. (C) 2014 The Japan Society of Applied Physics
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页数:4
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