lithography AIN Polyurethane FrictionalForce Chungnam_National_University PVA Metal INSP Biology Non-ContactMode NUS_Physics Nickel Microchannel PinpointNanomechanicalMode Writing DIWafer TipBiasMode Subhajjit phase_change mono_layer NUS_NNI_Nanocore Ucl CNT ElectrostaticForceMicroscopy rubber Mechanical CuParticle non_contact piezoelectric force microscopy C_AFM Tungsten_disulfide Mobile Perovskite Boundary Calcite