PVAP3HT PolyvinylAcetate Lateral_Force_Microscopy I-VSpectroscopy FM-KPFM Sulfur Magnetostrictive PatternedSapphireSubstrat frequency_modulation MeltingPoint Imprint electrospinning FrictionalForceMicroscopy hard_disk semifluorinated_alkanes MagneticForceMicroscopy Au111 MagneticPhase #Materials SiliconeOxide temp Force-distance PVAC Nanofiber CVD Singapore ScratchMode ThermalConductivity organic_polymer PolyvinylideneFluoride Memory HardDisk BlockCopolymer Floppy Pattern