cannabis CuSubstrate PvdfFilm Pinpoint NTU Techcomp FFM FloppyDisk Scanning_Thermal_Microscopy SrTiO3 Polyethylene ScanningSpreadingResistanceMicroscopy Cancer organic_polymer fluoroalkane Scratch lithography Annealed VortexCore Edwin HexagonalBoronNitride Conduct ThermalConductivity Vinylpyridine CompactDisk YttriaStabilizedZirconia Organic Adhesive Multiferroic_materials OpticalWaveguides polyvinyl acetate SiWafer ring shape AIN ScanningKelvinProbeMicroscopy