SAM LFM Materials PVA Led HexacontaneFilm heterojunctions Praseodymium FM-KPFM BiasMode MeltingPoint Dimethicone Scratch Calcite FastScan Wafer 2-vinylpyridine Formamidinium_lead_iodide KAIST MonoLayer NiFe Temperature SiliconCrystal GlassTemp ShenYang Polyurethane cannabis Sapphire Alloy Spincast MagneticForceMicroscopy NUSNNI SrTiO3 nanobar TipBiasMode