Genetic Piezoelectric NiFe SiliconeOxide Molybdenum_disulfide Piezo Polytetrafluoroethylene PFM Sadowski contact kelvin probe force microscopy Glass graphene_hybrid GaP AIN Calcium Optoelectonics MechanicalProperties BlockCopolymer fluorocarbon GlassTemp nanobar Monisha Mfm AtomicSteps BoronNitride Transparent Potential AdhesionForce ConductiveAFM LiftMode SolarCell ImideMonomer LowDensityPolyethylene mechanical property