LightEmission PVAC Nanostructure thermal_property ContactModeDot NUS_NNI_Nanocore MechanicalProperty BiVO4 Piranha Scanning_Thermal_Microscopy Dimethicone organic_polymer cooling Lift Semiconductor Moire Iron Cell Transparent TransitionMetal ThinFilm Cross-section Fluoride AAO MagneticForceMicroscopy silicon_carbide fifber UnivOfMaryland neodymium_magnets Mfm Mechanical&nanotechnology Yeditepe_University Friction Grain PDMS