Figure 4: Memory characteristics of the hybrid memory.

(a) Transfer curves of the memory device doped with 1 mg ml⁻¹ core/shell nanocrystals. (b) Transfer curves of the memory device doped with 3 mg ml⁻¹ core/shell nanocrystals. (c) Transfer curves of the memory device doped with 5 mg ml⁻¹ core/shell nanocrystals. (d) Memory windows and relative mobilities as a function of doping concentration. (e) Memory characteristics of the memory device with IR-assisted programming behaviour. (f) Retention property of the multilevel IR photonic memory device.