mechanical property AdhesionEnergy aluminum_nitride MagneticForceMicroscopy Phthalocyanine LeakageCurrent Polyurethane cannabis Ecoli Neodymium nanobar temp_control C_AFM SrTiO3 Pvdf Silver Wonseok CuParticle Magnetic Force Microscopy gallium_nitride self-assembled_monolayer Nanotechnology semifluorinated alkane rubber Tapping OrganicSemiconductor FrictionalForce Sapphire Fujian Scratch suspended_graphene PVA Battery Pores Tungsten_disulfide