HighAspect non_contact Modulus Wonseok OpticalModulator Film plastics ScanningIon-ConductanceMicroscopy PolyvinylideneFluoride mono_layer Resistance MolybdenumDisulfide Fujian Perovskite Workfunction Bmp TipBiasMode CrystalGrowing FFM PANI Potential Dopped Christmas AIN Hysteresys ShenYang Floppy Mapping DomainSwitching Metal NTU AdhesionForce Piranha Ucl Conducting