Indium_tin_oxide Polyvinylidene_fluoride HydroGel Morphology MBE Polyurethane NUS_NNI_Nanocore Bismuth MechanicalProperty SiliconeOxide Conductance CuSubstrate CompactDisk OrganicCompound gallium_nitride KPFM MembraneFilter Solution Array ring shape InLiquid Sphere Wafer Tape LiBattery China AM_KPFM LiquidCell ScratchMode Varistor Platinum Blend molecular_self_assembly Gallium LDPE