Techcomp LiNbO3 ScanningTunnelingMicroscopy STM Cross-section BoronNitride Yeditepe_University SurfaceOxidation self_healing Hydroxyapatite Liquid Melt Growing Leakage Anneal LightEmission Edwin CancerCell GaN Hexylthiophene Sapphire Annealed Insulator AM_KPFM ThermalDetectors single_layer Logo Moire multi_layer lithography WS2 Ni81Fe19 Subhajjit LiquidCell UnivOfMaryland