Effect of grain coalescence on dislocation and stress in GaN films grown on nanoscale patterned sapphire substrates

Author:

Pan Zuojian1ORCID,Chen Zhizhong123ORCID,Chen Yiyong1ORCID,Zhang Haodong1,Yang Han1,Hu Ling1,Kang Xiangning1,Yuan Ye4,Jia Chuanyu5,Liang Zhiwen2,Wang Qi2,Zhang Guoyi12,Shen Bo13

Affiliation:

1. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China

2. Dongguan Institute of Optoelectronics, Peking University, Dongguan, Guangdong 523808, China

3. Yangtze Delta Institute of Optoelectronics, Peking University, Nantong, Jiangsu 226000, China

4. Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China

5. School of Electrical Engineering and Intelligentization, Dongguan University of Technology, Dongguan, Guangdong 523808, China

Abstract

The effect of grain coalescence on the dislocation and stress in GaN films grown on nanoscale patterned sapphire substrates with low-temperature grown GaN and physical vapour deposition AlN nucleation layers is comparably investigated.

Funder

Basic and Applied Basic Research Foundation of Guangdong Province

National Key Research and Development Program of China

National Natural Science Foundation of China

Publisher

Royal Society of Chemistry (RSC)

Subject

Condensed Matter Physics,General Materials Science,General Chemistry

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