Photovoltaics Lanthanum_aluminate CopperFoil PinPointMode single_layer Wonseok Silver Polydimethylsiloxane Molybdenum_disulfide PANI HighAspect contact NUS_Physics CuSubstrate LateralPFM GaP AdhesionForce Polystyrene FM-KPFM Gallium_Arsenide SSRM Anneal Metal Mfm Sic Hexatriacontane CrAu Alloy DeflectionOptics GlassTemperature Filter plastics Subhajjit PS_PVAC LiquidCell