Recent progress on controlling dislocation density and behavior during heteroepitaxial single crystal diamond growth

WANG Wei-hua; WANG Yang; SHU Guo-yang; FANG Shi-shu; HAN Jie-cai; DAI Bing; ZHU Jia-qi

doi:10.1016/S1872-5805(21)60096-3

Volume 36 Issue 6

Dec. 2021

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WANG Wei-hua, WANG Yang, SHU Guo-yang, FANG Shi-shu, HAN Jie-cai, DAI Bing, ZHU Jia-qi. Recent progress on controlling dislocation density and behavior during heteroepitaxial single crystal diamond growth. New Carbon Mater., 2021, 36(6): 1034-1048. doi: 10.1016/S1872-5805(21)60096-3

Citation:

WANG Wei-hua, WANG Yang, SHU Guo-yang, FANG Shi-shu, HAN Jie-cai, DAI Bing, ZHU Jia-qi. Recent progress on controlling dislocation density and behavior during heteroepitaxial single crystal diamond growth. New Carbon Mater., 2021, 36(6): 1034-1048. doi: 10.1016/S1872-5805(21)60096-3

Citation:

WANG Wei-hua, WANG Yang, SHU Guo-yang, FANG Shi-shu, HAN Jie-cai, DAI Bing, ZHU Jia-qi. Recent progress on controlling dislocation density and behavior during heteroepitaxial single crystal diamond growth. New Carbon Mater., 2021, 36(6): 1034-1048. doi: 10.1016/S1872-5805(21)60096-3

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Recent progress on controlling dislocation density and behavior during heteroepitaxial single crystal diamond growth

doi: 10.1016/S1872-5805(21)60096-3

WANG Wei-hua^1
,,
WANG Yang¹,
SHU Guo-yang¹,
FANG Shi-shu¹,
HAN Jie-cai¹,
DAI Bing^{1, 2
,
,},
ZHU Jia-qi^{1, 3
,
,}

1.
National Key Laboratory of Special Environment Composite Technology, Harbin Institute of Technology, Harbin 150001, China
2.
HRG Institute (Zhongshan) of Unmanned Equipment & AI, Zhongshan 528521, China
3.
Key Laboratory of Micro-systems and Micro-structures Manufacturing Ministry of Education, Harbin Institute of Technology, Harbin 150001, China

More Information

Author Bio:
王伟华，博士研究生. E-mail：weihuawang2011@163.com
Corresponding author: DAI Bing, Lecturer. E-mail: daib@hit.edu.cn; ZHU Jia-qi, Professor. E-mail: zhujq@hit.edu.cn
Received Date: 2021-07-04
Rev Recd Date: 2021-08-31

Available Online: 2021-11-13

Publish Date: 2021-12-01

Abstract

Abstract

Dislocations are considered crucial linear defects in the synthesis of heteroepitaxial single crystal diamond. Minimizing the dislocation density is a significant challenge for using diamond in electronics. This especially holds for diamond growth on iridium substrates with a large lattice constant difference of 7.1%. We first discuss several aspects of dislocations in heteroepitaxial diamond nucleation and growth, including their generation, types and characterization. Next, methods to reduce dislocation density are summarized, including increasing dislocation reactions (increasing the diamond film thickness and off-axis substrate growth), removing dislocations (conventional epitaxial lateral growth, pendeoepitaxial lateral growth and patterned nucleation growth), and other methods (three-dimensional growth, metal-assisted termination and using a pyramidal substrate). The dislocation density has been reduced to 6×10⁵ cm⁻², based on the use of a micrometric laser-pierced hole array, a method similar to patterned nucleation growth. To further reduce dislocation density and improve crystal quality, proposed ways of controlling the introduction of dislocations (substrate patterning, buffer layer and compliant substrate methods) are highlighted.
- Single crystal diamond,
- Heteroepitaxy,
- Dislocation reduction,
- Epitaxial lateral growth,
- Substrate patterning

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References(77)

References

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