OpticalWaveguides MagneticArray Litho Polyvinylidene TemperatureControlledAFM Nanofiber Ram Ecoli SKPM mechanical_property Pinpoint Piezoelectric Hafnium_dioxide University_of_Regensburg PiezoelectricForceMicroscopy HBN atomic_layer PolyimideFilm LightEmiting Alloy chemical_compound ring shape fifber Wonseok Corrosion Adhesive Grain Chemical Vapor Deposition Chloroform PhaseChange SiWafer dielectric trench HafniumDioxide Chungnam_National_University 3-hexylthiophene