Optoelectronic EPFL Chromium ScanningThermalMicroscopy Galfenol Titanate MolecularSelfAssembly Alloy PhaseTransition PS_PVAC PolycrystallineFerroelectricBCZT nanomechanical PvdfFilm TPU GaN FAPbI3 YttriaStabilizedZirconia Magnets self-assembly Tungsten_disulfide semifluorinated alkane Mechanical MultiLayerCeramicCapacitor HanyangUniv MESA structure Polydimethylsiloxane HydroGel Copolymer Genetic Sadowski ring shape Vortex EFMAmplitude TemperatureControlledAFM StrontiumTitanate