{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9624600","patent":{"patent_number":"US-9624600","title":"Direct graphene growth on metal oxides by molecular epitaxy","assignee":null,"inventors":[],"filing_date":"2012-12-06T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["B82Y","B82Y","H01L","H01L","H01L","H01L","H01L"],"num_claims":3,"abstract":"Direct growth of graphene on Co3O4(111) at 1000 K was achieved by molecular beam epitaxy from a graphite source. Auger spectroscopy shows a characteristic sp2 carbon lineshape, at average carbon coverages from 0.4-3 monolayers. Low energy electron diffraction (LEED) indicates (111) ordering of the sp2 carbon film with a lattice constant of 2.5 (±0.1) Å characteristic of graphene. Six-fold symmetry of the graphene diffraction spots is observed at 0.4, 1 and 3 monolayers. The LEED data also indicate an average domain size of ˜1800 Å, and show an incommensurate interface with the Co3O4(111) substrate, where the latter exhibits a lattice constant of 2.8 (±0.1) Å. Core level photoemission shows a characteristically asymmetric C(1s) feature, with the expected lr to lr* satellite feature, but with a binding energy for the three monolayer film of 284.9 (±0.1) eV, indicative of substantial graphene-to-oxide charge transfer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Direct graphene growth on metal oxides by molecular epitaxy","description":"Direct growth of graphene on Co3O4(111) at 1000 K was achieved by molecular beam epitaxy from a graphite source. Auger spectroscopy shows a characteristic sp2 carbon lineshape, at average carbon cover","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9624600","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9624600","citation_suggestion":"Patentable. \"Direct graphene growth on metal oxides by molecular epitaxy\" (US-9624600). https://patentable.app/patents/US-9624600","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9624600","json":"https://patentable.app/api/llm-context/US-9624600","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:08:35.822Z"}