Adsorption-controlled growth of homoepitaxial <i>c</i>-plane sapphire films
Sapphire is a technologically highly relevant material, but it poses many challenges when performing epitaxial thin-film deposition. We have identified and applied the conditions for adsorption-controlled homoepitaxial growth of c-plane sapphire. The films thus grown are atomically smooth, have a controlled termination, and are of outstanding crystallinity. Their chemical purity exceeds that of the substrates. The films exhibit exceptional optical properties, such as a single-crystal-like bandgap and a low density of F+ centers.
Authors
- J. Mannhart
- Sander Smink (ORCID: https://orcid.org/0000-0002-4072-6944)
- Peter A. van Aken (ORCID: https://orcid.org/0000-0003-1890-1256)
- K. S. Rabinovich (ORCID: https://orcid.org/0000-0002-2616-4623)
- Ulrich Starke (ORCID: https://orcid.org/0000-0003-1153-1862)
- Jacob Steele (ORCID: https://orcid.org/0000-0001-9520-6105)
- Lena N. Majer (ORCID: https://orcid.org/0000-0003-2731-9647)
- Wolfgang Braun (ORCID: https://orcid.org/0000-0002-6945-6351)
- Darrell G. Schlom (ORCID: https://orcid.org/0000-0003-2493-6113)
- Felix V. E. Hensling (ORCID: https://orcid.org/0000-0003-3852-7214)
- Takeyoshi Onuma (ORCID: https://orcid.org/0000-0003-0060-4245)
- Patrick Vogt (ORCID: https://orcid.org/0000-0002-8800-8706)
- Tolga Acartürk (ORCID: https://orcid.org/0009-0000-7180-2252)
- Luca Camuti (ORCID: https://orcid.org/0009-0005-4827-1007)
- Hongguang Wang (ORCID: https://orcid.org/0000-0001-8552-2323)
- Johan Eckl-Haese
Institutions
- Kogakuin University (JP)
- University of Bremen (DE)
- Cornell University (US)
- Max Planck Institute for Solid State Research (DE)
- Center for Nanoscale Science and Technology (US)
- Leibniz Institute for Crystal Growth (DE)
- Ludwig-Maximilians-Universität München (DE)
- Leibniz Institute for Crystal Growth (DE)
Publication Details
- Journal
- APL Materials
- Published
- 2024-09-01
- DOI
- https://doi.org/10.1063/5.0224092
- Citations
- 5
- Primary Topic
- ZnO doping and properties
- Type
- article
- Field-Weighted Citation Impact
- 0.59