dielectric_trench temperature controller AFM Polydimethylsiloxane Treatment PhaseChange Holes Formamidinium_lead_iodide KPFM MolybdenumDisulfide Korea GaP 2d_materials TungstenThinFilmDeposition tip_bias_mode Cell BoronNitride PtfeFilter DiffractiveOpticalElements Pinpoint PFM C36H74 Monisha ForceDistanceSpectroscopy PvdfFilm Vortex EFMAmplitude KevlarFiber StrontiuTitanate NCM PinpointPFM LifeScience Au111 FM_SKPM Defects PpLdpe molecular_self_assembly