Hexylthiophene University_of_Regensburg Optical Piezo Mapping Metal-organicComplex Worcester_Polytechnic_Institute light_emitting Aggregated_molecules ScanningTunnelingMicroscopy C36H74 Hydroxyapatite PANI ring shape Stiffness oxide_layer PUR Cobalt Titanate Bacterium Tungsten_disulfide Magnetostrictive MeltingPoint Praseodymium IMT_Bucharest CntFilm 3-hexylthiophene Alkane CuSubstrate Beads SiliconOxide semifluorinated_alkane LaAlO3 IVSpectroscopy PvdfFilm