Impact of stacking faults on the luminescence of a zincblende InGaN/GaN single quantum well
Abstract In this paper, we investigate the optical properties of a zincblende InGaN single quantum well (SQW) structure containing stacking faults (SFs). Cathodoluminescence studies revealed the presence of sharp emission features adjacent to SFs, identified as quantum wires (Qwire) via their spatial anisotropy. Scanning transmission electron microscopy provided evidence of indium rich regions adjacent to SFs which intersect the QW along the [110] and [1–10] directions, whilst atom probe tomography revealed that the indium rich regions have an elongated structure, creating a Qwire. This work sheds light on the intricate relationship between SFs and Qwires in zincblende InGaN SQW structures, offering insights into the underlying mechanisms governing their optical behavior.
Authors
- Abhiram Gundimeda (ORCID: https://orcid.org/0000-0001-5208-1920)
- Huixin Xiu (ORCID: https://orcid.org/0000-0002-8475-0516)
- Menno J. Kappers (ORCID: https://orcid.org/0000-0002-6566-0742)
- D. J. Wallis (ORCID: https://orcid.org/0000-0002-0475-7583)
- Gunnar Kusch (ORCID: https://orcid.org/0000-0003-2743-1022)
- Christina Hofer (ORCID: https://orcid.org/0000-0002-0814-9016)
- Ruiying Shu (ORCID: https://orcid.org/0000-0001-9055-2148)
- Paul A.J. Bagot (ORCID: https://orcid.org/0000-0002-9102-6083)
- Michael P. Moody (ORCID: https://orcid.org/0000-0002-9256-0966)
- Martin Frentrup (ORCID: https://orcid.org/0000-0002-1726-3099)
- Rachel A. Oliver (ORCID: https://orcid.org/0000-0003-0029-3993)
Institutions
- University of Shanghai for Science and Technology (CN)
- University of Cambridge (GB)
- University of Oxford (GB)
- Cardiff University (GB)
Publication Details
- Journal
- Journal of Physics D Applied Physics
- Published
- 2024-10-14
- DOI
- https://doi.org/10.1088/1361-6463/ad8662
- Citations
- 3
- Primary Topic
- GaN-based semiconductor devices and materials
- Type
- article
- Field-Weighted Citation Impact
- 0.93
Funders
- Beyond Blue
- Engineering and Physical Sciences Research Council
- Innovate UK