ChemicalCompound FrictionalForceMicroscopy temp Gallium HanyangUniv UTEM Treatment Etch DOE Bacteria temperature_control molecular_beam Melt PyroelectricDetector #EC Subhajjit Hexatriacontane Beads P3HT FAPbI3 Sulfur Patterns PetruPoni FuelCell CVD hard_disk Scanning_Thermal_Microscopy ContactModeDots Hair LifeScience Chemical Vapor Deposition Moire Logo NUSNNI ring shape