P3HT cannabis Hexacontane Leakage Scratch SetpointMode Boron ScratchMode domain_switching Indent Melt thermoplastic_elastomers Chrome AIN NUS_Physics Collagen LDPE Ca10(PO4)6(OH)2 semifluorinated_alkanes epitaxy Varistor Polarization SAM Silver ThermalProperties FFM Microchannel MfmPhase Edwin hard_disk_media Conductive AFM Praseodymium UTEM Graphite Phenanthrene