Presentation
5 March 2022 Trigonal oxide semiconductor heterostructures
Author Affiliations +
Proceedings Volume PC12002, Oxide-based Materials and Devices XIII; PC120020B (2022) https://doi.org/10.1117/12.2617537
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
We investigate the specifics of trigonal materials and their heterostructures, in particular alpha-phase (corundum phase) alumina and gallia and their alloy alpha-(Al,Ga)2O3. Compared to more common hexagonal semiconductor materials (like group-III nitrides), the symmetry is reduced. Regarding the elastic properties, this leads to the occurrence of shear strains in heteroepitaxy and a difference between a- and m-planes. Particular care must be taken when evaluating Raman scattering for the determination of the Raman tensor; for thin films, also the thickness must be taken into account. Also results on electrical properties will be given.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Marius Grundmann "Trigonal oxide semiconductor heterostructures", Proc. SPIE PC12002, Oxide-based Materials and Devices XIII, PC120020B (5 March 2022); https://doi.org/10.1117/12.2617537
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KEYWORDS
Heterojunctions

Oxides

Semiconductors

Raman spectroscopy

Anisotropy

Corundum

Crystal optics

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