Polyurethane TiO2 Writing mechanical_property HOPG Al2O3 BloodCell BismuthVanadate FAPbI3 Phenanthrene CBD ScanningThermalMicroscopy MolybdenumDisulfide MagneticPhase PECurve Composition PhthalocyaninePraseodymium Wildtype Graphene LaAlO3 SurfaceOxidation atomic_layer tip_bias_mode amplitude_modulation Liquid Galfenol STM lithography Thermal FrictionalForceMicroscopy LMF Hair Regensburg semifluorinated alkane F14H20