Remote epitaxy of silicon carbide for quantum nanophotonic crystals

Project funded by Swedish Research Council (Project grant), grant 2020-05444_VR. Participating organisations named by the source: Linköping University. Funded amount: SEK 3,800,000, as stated by the source. Runs 2021-01-01 to 2024-12-31. Keywords: Naturvetenskap, Natural Sciences, Fysik, Physical Sciences, Atom- och molekylfysik och optik, Atom and Molecular Physics and Optics. Source: OpenAIRE Graph, from the funder's project data (collected by OpenAIRE on 2025-12-05); national funding data, not CORDIS. Abstract given by the source: Silicon carbide (SiC ) offers a unique combination of material properties for quantum technologies. Harnessing these properties simultaneously through an integrated SiC photonics platform enables new milestones for quantum nanophotonics, such as on-chip generation and quantum frequency conversion of light. Integrated photonic circuits based on Si technology took off only after the commercialization of the single crystal silicon-on-insulator platform. For SiC, it remains an outstanding challenge to demonstrate thin layers on the insulator, a critical requirement for integrating high-quality color centers into the scalable photonic platform. In this project, the applicant proposes such a platform for 4H-SiC-on-Insulator which brings color centers into compatibility with industry-standard nanophotonic fabrication techniques. This will be realized through the remote epitaxy of a thin layer of SiC on graphene-coated SiC substrate and then its transfer onto SiO2. Remote epitaxy allows the registry of substrate crystal to be copied into the overlayer through a thin graphene layer. After the growth, thin epilayer can be easily exfoliated as graphene is not chemically bonded to the substrate. Building on this platform, the applicant also proposes the complimentary demonstration of nanophotonic cavities and waveguides with embedded single-photon emitters based on spin-active color centers, which are key elements for the development of quantum communication.

Original source.

Source: OpenAIRE Graph: projects of national funders, OpenAIRE, from the project data of Swedish Research Council. Retrieved 2026-10-28. Licence: Creative Commons Attribution 4.0 (OpenAIRE Graph). Selected metadata, adapted presentation; the publisher's record is authoritative. No endorsement by the source is implied. Licence: Creative Commons Attribution 4.0 (CC BY 4.0).

AI-assisted summary: The project "Remote epitaxy of silicon carbide for quantum nanophotonic crystals" is funded by the Swedish Research Council with a grant of SEK 3,800,000, running from January 1, 2021, to December 31, 2024, involving Linköping University. Suggested technology pillar: enabling. Generated by AI from the public source text; it may contain errors and the original source is authoritative.