solar_cell Liquid Bacteria PyroelectricDetector cooling ForceDistanceSpectroscopy Resistance high_resolution Hole SurfaceOxidation TemperatureControllerAFM PvdfBead PtfeMembrane IIT-chennai TappingMode FuelCell Neodymium IcelandSpar SingleLayer Memory Mechinical Implant Mechanical Multiferroic_materials CancerCell chemical_compound NUS_Physics Metal-organicComplex ForceMapping Writing Pvdf C60H122 molecule Transparent piezoelectric force microscopy