Single Crystal Metal Foils and Single Crystal Graphene and Single Crystal F-Diamane

We have converted polycrystalline foils (copper, nickel, cobalt, platinum, palladium) to single crystal foiils (Science 2018) and used single crystal Cu(111) foils to synthesize single crystal graphene having folds (several articles in ACS Nano and Advanced Materials), while single crystal Cu-Ni(111) "alloy" foils have yielded fold-free and wrinkle free single crystal graphene (Nature 2021), and at higher nickel concentrations, relatively large area single crystal AB-stacked bilayer graphene (Nature Nanotechnology 2020) that was converted to fluorinated diamane (C2F) by exposure to XeF2 (Nature Nanotechnology, also 2020). Our Ni(111) foils were used to make large area single crystal hexagonal boron nitride films in collaboration with Hyeon Suk Shin and team members (Nature 2022). I look forward to presenting these topics and to the interesting questions from colleagues. Our work supported by IBS-R019-D1.