Etch norganic Fiber I-VSpectroscopy Formamidinium_lead_iodide PDMS Cell light_emission Chrome Blend Piezo ForceMapping Jason molecule Praseodymium Gold Edwin MagneticArray domain_switching Foil Conducting CopperFoil molecular_beam Water BaTiO3 fluoroaalkane Regensburg HBN Multiferroic_materials MetalCompound Organic CHRYSALIS_INC gallium_nitride Pore silicon_carbide