Worcester_Polytechnic_Institute HighAcpectRatio ThermalProperties cross section Magnetic Force Microscopy CBD HexagonalBoronNitride PtfeMembrane atomic_steps FuelCell AtomicLayer Device Phosphide Mechinical CuParticle organic_polymer PDMS LightEmission Vortex SelfAssembly Polystyrene ThermalConductivity WWafer BiFeO3 silicon_carbide Silver UnivCollegeLondon NUSNNI Scratch EvatecAG Aggregated_molecules MagneticForceMicroscopy Water SFAs Polarization