We have developed deep-red and NIR TADF emitters containing an extended p-conjugated pyrazinequinoxaline (PQ) acceptor with a particularly deep LUMO at -2.74 eV. The compounds 4DMAC-TPPQ and 4PXZ-TPPQ emit at 650 and 762 nm in toluene, which are significantly red-shifted in comparison to the donor-free parent compound TPPQ (lPL = 456 nm). AIE behavior was observed in THF:water mixtures of all compounds. While TPPQ is fluorescent, both 4DMAC-TPPQ and 4PXZ-TPPQ are TADF as both doped films in CBP and as neat films. The 10 wt% doped film of 4DMAC-TPPQ in CBP emits at 635 nm and the ∆EST is 0.29 eV, while the neat film emits at 654 nm yet has the same ∆EST. On the other hand, the 5 wt% doped film of 4PXZ-TPPQ in CBP emits at 682 nm and the ∆EST is 0.15 eV, while the neat film emits at 770 nm and the ∆EST is much smaller at 0.04 eV. The undoped solution-processed OLEDs (SP- The turn-on voltage at lowest luminance and 10 cd m -2 in parenthesis. b The electroluminescence maximum recorded at 7 or 8 V. c EQEmax/EQE10/ EQE100. d Device was fabricated by vacuum deposition. e EUE = exciton utilization efficiency, calculated according to the equation: EQE= hext × FPL of film × EUE × g, in which hext = optical outcoupling efficiency, assumed to be 25% for an isotropic film, and g = charge-balance factor, assumed to be 100%,