multi_layer Magnets ContactModeDots non_contact ThinFilm Vinylpyridine AlkaneFilm optoelectronics bias_mode Chemical_Vapor_Deposition chemical_compound Titanate Monisha Nanofiber PolyvinylideneFluoride Laser Piezoelectric Phenanthrene Zhi SetpointMode BismuthVanadate Device PECurve DLaTGS AM-KPFM KAIST Varistor Nanotechnology Grain Blend MESA structure HanyangUniv ForceMapping MoS2 HafniumDioxide