Tape Fet ring shape Electrode NtuEee StrontiumTitanate IMT_Bucharest polymeric_arrays RedBloodCell Ca10(PO4)6(OH)2 Polystyrene Ptfe StrontiuTitanate Silicon AtomicLayer Oxide Spain Flake KPFM Fluoride MetalCompound GaAs PatternedSapphireSubstrat Temasek_Lab small_scan dielectric trench NUS_Physics Subhajjit Pzt AIN China SAM light_emission Perovskite Molybdenum