Gong exfoliate CarbonNanotube Polyvinylidene_fluoride Yttria_stabilized_Zirconia ring shape NanoLithography Deposition StyreneBeads AM_KPFM Imprint SKKU Pipette phase_change Foil CuParticle Polarization LateralForceMicroscopy CeNSE_IISc C60H122 University_of_Regensburg Flake Piezo Ferroelectric FAFailureAnlaysis Fujian hydrocarbon PolyimideFilm NTU Cell Polydimethylsiloxane Nanopattern Bacterium Wonseok Cobalt