In addition, these near ultraviolet CPL materials can function as sensitizers for achiral luminescent materials to obtain CP-EL as well. For instance, the doped devices with the configuration of ITO/HATCN (5 nm)/TAPC (50 nm)/TcTa (5 nm)/mCP (5 nm)/EML (20 nm)/PPF (5 nm)/TmPyPB (30 nm)/LiF (1 nm)/Al are fabricated (Fig. and). The EML is composed of the doped film of BN3 (3 wt%) and S-BNPCN-o-CP (20 wt%) in PPF host, where S-BNPCN-o-CP is used to sensitize BN3. As shown in Fig. , the device of BN3 with S-BNPCN-p-CP as sensitizer shows an EL peak at 566 nm with narrow FWHM of 45 nm, similar to the PL property of BN3. Superb Lmax of 20710 cd m -2 and ηext,max of 30.8% are attained, and distinct CP-EL signal with a gEL of -1.17 × 10 -3 is recorded. R-BNPCNp-CP can offer comparable performance as the sensitizer for BN3 (Table ). These devices are the most efficient sensitized CP-OLEDs in similar color regions in the literature (Fig. and Supplementary Table ).