Alloy ScanningKelvinProbeMicroscopy Temasek_Lab CntFilm University_of_Regensburg Phenanthrene Gallium_Arsenide MoirePattern TPU Mechinical Perovskite SingleLayer Sapphire Polyethylene alkanes Zhi CeNSE_IISc Hexacontane KevlarFiber SSRM ShenYang Solar Self-assembledMonolayer Boundary STM HDD LateralForceMicroscopy Pipette Water Pyroelectric piezoelectric force microscopy NUSNNI VerticalPFM Wildtype Ecoli