2-vinylpyridine CntFilm Permalloy Cell WS2 Polyurethane Vac AM-KPFM Device LDPE Optoelectronic Holes Trench Gong Terrace VerticalPFM Vortex Solution Switching InsulatorFilm Array WWafer molecular_self_assembly HighAcpectRatio Dr.JurekSadowski Platinum mono_layer FM_SKPM Hexacontane Singapore temp_control SingleCrystal HfO2 Silver hydrocarbon