Figure 5

(a) AFM image of GaN film grown on Ti foil and (b) line profile across MN line in (a). (c) AFM image of PDI on GaN film grown on Ti foil and (d) line profile across OP line in (c).

(a) AFM image of GaN film grown on Ti foil and (b) line profile across MN line in (a). (c) AFM image of PDI on GaN film grown on Ti foil and (d) line profile across OP line in (c).