NTU Roughness chemical_compound organic_polymer Friction SolarCell BismuthVanadate TemperatureControl molecular_beam FrequencyModulation gallium_nitride SingleLayer Layer GalliumPhosphide CalciumHydroxyapatite ElectroDeposition semifluorinated_alkane CNT Modulus plastic self_healing MagneticArray OpticalWaveguide Potential PFM P3HT domain_switching AtomicLayer Biofilm ForceVolume Singapore Imprint Polarization amplitude_modulation DeflectionOptics