heterojunctions SmallScan Water Boron Ptfe PiezoelectricForceMicroscopy PhaseTransition AM-KPFM Hair oxide_layer PhthalocyaninePraseodymium polymeric_arrays hydrocarbon ShenYang TungstenDeposition TemperatureControlledAFM Hexylthiophene MagneticPhase ReflexLens Thermal Austenite Granada pinpoint mode Nanostructure Magnetic Force Microscopy block_copolymer Composite Perovskite Fujian ContactModeDots aluminum_nitride INSP AAO INSPParis IVSpectroscopy