StrontiuTitanate DataStorage DOE HiVacuum Yeditepe_University Tungsten_disulfide chemical_compound ImideMonomer Bacterium Wonseok NUS_NNI_Nanocore HOPG Butterfly Silicon hydrocarbon BariumTitanate Morphology LightEmiting Polydimethylsiloxane Alloy Spincast ForceMapping TemperatureControl Tape KAIST non_contact sputter PolyvinylideneFluoride NanoLithography Beads Conductive AFM Laser MBE PetruPoni Terrace