OpticalModulator Dental OrganicSemiconductor HydroGel Polyurethane Photovoltaics OpticalWaveguide NTU Reading Dopped FrictionalForce Monisha TransitionMetal Floppy HardDisk SmallScan P3HT PpLdpe Adhesion LithiumNiobate C_AFM LiftMode epitaxy Holes semifluorinated_alkane plastics Vortex Beads EvatecAG Insulator MfmAmplitude Alkane piezoelectric force microscopy SAM BiasMode