PS_PVAC molecular_self_assembly GaP Epoxy hydrocarbon Hexacontane STO Layer Conductance Heating Potential LogAmplifier VortexCore Pattern Imprint Deposition Boundary Chromium Litho heterojunctions PDMS FrictionalForceMicroscopy HafniumDioxide EFM TCS Gold HardDiskMedia Formamidinium_lead_iodide HanyangUniv TemperatureControllerAFM norganic Ananth Tin sulfide Morphology Bmp