Polyurethane Device Subhajjit Filter Formamidinium_lead_iodide Tin sulfide Sapphire nanobar Silicon Co/Cr/Pt Gallium I-VSpectroscopy Graphene Calcite OrganicCompound UnivOfMaryland PetruPoni_Institute layers Boundary Switching Jason LithiumNiobate Polyethylene cannabidiol molecular_beam PANI PMNPT high_resolution PhthalocyaninePraseodymium DOE Hexatriacontane AIN Scanning_Thermal_Microscopy UTEM SrTiO3