BismuthFerrite single_layer Polymer Al2O3 Chungnam_National_University PS_LDPE WS2 SmallScan Temperature HanyangUniv Yeditepe KelvinProbeForceMicroscopy INSPParis PolymerBlend Topography PetruPoni_Institute SolarCell Gong organic_polymer BiVO4 LiBattery FailureAnlaysis Hole Current Piranha IIT-chennai Au111 Indium_tin_oxide ChemicalCompound PDMS PtfeMembrane PolymerPatterns Polyaniline NusEce Vortex