amplitude_modulation HanyangUniv mechanical_property Cell SolarCell Display heterojunctions India LightEmission LaAlO3 molecule WWafer small_scan doped non_contact NUSNNI mfm_amplitude LithiumNiobate contact hard_disk SKPM single_layer molecular_self_assembly ImideMonomer Jason Cancer TiO2 Piezoresponse STO Granada Varistor PVAC molecular_beam InorganicCompound PatternedSapphireSubstrat