FrictionalForceMicroscopy CNT Carbon PVAC MESA structure SetpointMode Steps LightEmission Pipette Lateral Formamidinium_lead_iodide self-assembled_monolayer Wonseok VortexCore Anneal LeakageCurrent ThermalConductivity Sadowski fifber MeltingPoint Ferrite OrganicCompound IcelandSpar TemperatureControlledAFM ForceVolume Blend organic_polymer Chemical Vapor Deposition Optoelectronic CuSubstrate IVSpectroscopy heterojunctions MfmAmplitude blended polymers fluorocarbon