High Crystallinity CuScO$_{2}$ Delafossite Films Exhibiting Ultraviolet Photoluminescence Grown by Vapor–Liquid–Solid Tri-phase Epitaxy

High Crystallinity CuScO$_{2}$ Delafossite Films Exhibiting Ultraviolet Photoluminescence Grown by Vapor–Liquid–Solid Tri-phase Epitaxy