Optoelectonics SingleCrystal TiO2 FAPbI3 BreastCancerCell Chemical Vapor Deposition Tin disulfide Au111 NusEce multi_layer Electical&Electronics Switching Growing IMT_Bucharest PhthalocyaninePraseodymium Composition cross section ContactMode Piezo Sadowski Beads PhaseImaging Silver atomic_steps SiliconCrystal ForceVolumeImage Calcium TemperatureControllerAFM TungstenThinFilmDeposition Potential piezoelectric force microscopy 2d_materials ScanningTunnelingMicroscopy IIT-chennai CrystalGrowing