Fig. 5. (a) Overlap between the upconversion emissions of Er-1 and the UV-Vis absorption of c-PADTE, c-A¹₂L₃Zn₂ and c-R-A¹₂L₃. (b) Color change processes by UV- or Vis-irradiation of o/c-R-A¹₂L₃ (upper), hybrid materials of R-A¹₂L₃@Er-1 (for D), R-A¹₂L₃@Er-5 (for T) and R-A¹₂L₃@Er-9 (for E) under daylight (middle), and 980 nm-NIR excitation (lower). (c) Upconversion emission spectra and (d) CIE coordinates of hybrid materials by adding different ratios of c-R-A¹₂L₃ (0–0.96%). (e) The truth table for AND and NAND logic gates designed from the o-R-A¹₂L₃-0.11%@Er-1 system and (f) the corresponding PL readout signals for output III.