plastic Optoelectonics Thermoplastic_polyurethane PolyvinylideneFluoride Mechinical FailureAnalysis Jason kelvin probe force microscopy Oxidation Molybdenum_disulfide IVSpectroscopy Organic Temperature Anneal LFM ForceDistanceSpectroscopy ElectroChemical Stiffness ForceVolume Alloy ThermalDetectors sputter Solar gallium_nitride IISCBangalore FM_KPFM Blood MultiferroicMaterials NCM GalliumPhosphide Mobile Phase CrAu hydrocarbon TemperatureControlledAFM