SKKU piezoelectric force microscopy ThinFilm BreastCancerCell Memory FrequencyModulation CaMnO3 MoS2 hydrocarbon Optoelectonics I-VSpectroscopy CeramicCapacitor Alkane Chrome molecular_self_assembly PFM HardDiskMedia norganic heterojunctions Fluoride LFM C_AFM Polarization SolarCell ContactMode vertical_PFM HanyangUniv GlassTemp flakes Blend Fiber self_healing CuParticle Semiconductor PinPointMode