Fabrication of Pyramid Structure Substrate Utilized for Epitaxial Growth Free-Standing GaN

Metal−organic chemical vapor deposition (MOCVD)-grown GaN on sapphire substrate was etched by hot phosphoric acids. Pyramid structures were obtained in the N-polar face of the MOCVD−GaN. Details of the formation process and morphology of the structures were discussed. The crystal...

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Bibliographic Details
Main Authors: Ruixian Yu, Baoguo Zhang, Lei Zhang, Yongzhong Wu, Haixiao Hu, Lei Liu, Yongliang Shao, Xiaopeng Hao
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/9/11/547