Temasek_Lab Beads GaAs Plug oxide_layer SiliconeOxide MoS2 CrAu PhaseTransition piezoelectric force microscopy phase_change TipBiasMode FrictionalForce atomic_steps Force-distance semifluorinated alkane fluoroalkane LateralForce Display Polytetrafluoroethylene thermoplastic_elastomers Heat TemperatureControlledAFM domain_switching Al2O3 Modulus STO LeakageCurrent Photovoltaics HydroGel Sapphire Adhesion LiBattery Phenanthrene Polyethylene