Polyurethane chemical_compound STM Vanadate DIWafer fluoroaalkane Domain BiFeO3 Polyaniline C36H74 Water Reading GaP SoftSample Change Pinpoint PFM Growth biocompatible phase_change fluoroalkane Etch Conductive AFM 2dMaterials Sphere Laser CBD Treatment BTO Nanopattern Formamidinium_lead_iodide Annealed Growing Litho exfoliate dichalcogenide