IIT-chennai EPFL Polyurethane IcelandSpar temp domain_switching semifluorinated_alkanes Hysteresys Yeditepe BismuthVanadate Conductive AFM Sphere SolarCell Nanotechnology conductive Polyaniline AM-KPFM Tungsten_disulfide China LiIonBattery Array TempControl MonoLayer SelfAssembly KevlarFiber TyphimuriumBiofilm Spincast piezoelectric force microscopy Perovskite ULCA dielectric_trench TemperatureControllerAFM electrospinning HOPG Subhajjit