Strontium Etch single_layer atomic_layer Array AdhesionEnergy Ito Pyroelectric polyvinyl acetate Copper UnivCollegeLondon Electrode Zagreb bias_mode BFO PolyvinylAcetate INSP SPMLabs ElectroChemical MetalCompound Hexylthiophene University_of_Regensburg OpticalWaveguides MagneticPhase PVA CeNSE_IISc Mechinical organic_polymer MonoLayer Sperm HanyangUniv Patterns BiVO4 Chungnam_National_University GaAs