Fig. 5: Circular polarization dissymmetry and energy efficiency performance of the CP-OLEDs with different configurations.
From: Circularly polarized OLEDs from chiral plasmonic nanoparticle-molecule hybrids
a Dependence of the highest device |gEL| of the CP-OLEDs on the |gext| of the employed chiral NPs. The utilization of the chiral NPs with increased |gext| factors contributes to the higher asymmetric EL emissions of the CP-OLED-2 and CP-OLED-3 devices, indicating that the CPEL asymmetry is governed by the chiroptical activity of the chiral NPs. b EQEs of the CP-OLED devices at different applied voltages. c–f Transient CPEL intensities (exposure time 10 ms) of typical L-OLED-2 (c) and D-OLED-3 (d) when the applied voltages were swept between zero and linearly increasing values. The dependences of the EL intensity and gEL on the applied voltage for the same L-OLED-2 (e) and D-OLED-3 (f) devices were derived accordingly. g Comparison of various CP-OLEDs in terms of EQE value and |gEL| factor. The data of previously reported CP-OLEDs were summarized in Supplementary Table 1. Different from previously reported CP-OLEDs showing the inverse relationship between the EQE value and |gEL| factor, the CP-OLEDs constructed from the chiral plasmonic NP–molecule hybrids exhibit both high EQE values and large |gEL| factors. Source data are provided as a Source Data file.
