Polyurethane PhaseImaging P3HT light_emission PtfeFilter cooling GaP ContactModeDots SingleLayer BiFeO3 CrystalGrowing ito_film ScanningKelvinProbeMicroscopy WPlug KPFM PatternedSapphireSubstrat Austenite University_of_Regensburg Singapore ConductingPolymer PS_LDPE FAFailureAnlaysis InsulatorFilm Deposition temperature controller AFM Pinpoint PFM Optoelectonics Annealing Tungsten Alkane neodymium_magnets Self-assembledMonolayer Copolymer SoftSample TemperatureControllerAFM