Polyethylene Biology graphene_hybrid silicon_oxide Device Sperm FuelCell NCM Polyimide Implant PinpointPFM Defects TungstenDeposition Composite Trench electrospinning Fujian Wafer Sapphire PetruPoni TiO2 Multiferroic_materials Mosfet Gold Friction tip_bias_mode Leakage EvatecAG Phase Heat Cobalt-dopedIronOxide Chrome Nanostructure PFM Temperature