F14H20 DOE Defects hetero_structure 3-hexylthiophene 2d_materials high_resolution Indent conductive DeflectionOptics BTO PvdfFilm Vinylpyridine semifluorinated_alkanes Layer PMNPT KPFM PFM Force-distance GaP Tin sulfide align Monisha BoronNitride FailureAnlaysis Carbon PinPointMode Indium_tin_oxide Laser ContactModeDots TemperatureControllerAFM SicMosfet Current HiVacuum Lateral_Force_Microscopy