Efficient triplet energy transfer in a 0D metal halide hybrid with long persistence room temperature phosphorescence for time-resolved anti-counterfeiting

Due to strong overlap between the triplet emission of DPTA and 1 S 0 → 3 P x absorption of Sb 3+ , efficient triplet energy transfer occurs between DPTA and Sb and the afterglow persistence time of DIC: x % Sb can be easily tailored through Sb 3+ doping.