PANI molecular_beam Hafnia Mosfet ContactModeDot Annealed Piezoresponse temperature_control ConductingPolymer tip_bias_mode PatternedSapphireSubstrat Polymer SmallScan ContactMode WS2 InsulatorFilm ImideMonomer atomic_steps OrganicCompound Electronics Cobalt oxide_layer IIT-chennai Tungsten_disulfide VerticalPFM Perovskite C60H122 LeakageCurrent C36H74 LateralForce Gallium IRDetector Ceramics Biofilm TemperatureControllerStage