ChemicalCompound LDPE hard_disk_media Solution BCZT H-BN Solar KelvinProbeForceMicroscopy TPU thermal_property HardDisk sputter TungstenDeposition flakes IISCBangalore Bacteria Reading DataStorage gallium_nitride India Holes PS_LDPE MonoLayer polymeric_arrays PvdfBead SrTiO3 MechanicalProperties HfO2 PVA chemical_compound FAFailureAnlaysis temperature_control Optical ConductingPolymer Bacterium