Epitaxial growth of 2.5-μm quaternary AlInGaN for n-cladding layer in GaN-based green laser diodes

Autor: Lingrong Jiang, Jianping Liu, Aiqin Tian, Masao Ikeda, Liqun Zhang, Peng Wu, Wei Zhou, Hui Yang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Fundamental Research, Vol 1, Iss 6, Pp 672-676 (2021)
Druh dokumentu: article
ISSN: 2667-3258
DOI: 10.1016/j.fmre.2021.09.016
Popis: The ridge morphology, which is related to random atomic step meandering, appears in thick AlInGaN films grown by metal organic chemical vapor deposition on both GaN templates and free-standing GaN substrates; this can be primarily attributed to the in-plane compressive strain in the thick layer. Therefore, a 2.5-μm Al0.08In0.0123GaN film with a slightly tensive strain was grown, with a regular and smooth step-flow morphology; the root mean square deviation of the film (with a size of 5 μm × 5 μm) was 0.56 nm.
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