fig3

Figure 3. (A) RVDA molecules with progressively lower resonance variation energies developed through iterative tuning of resonance structures; (B) Resonance engineering lowers the resonance energy barrier, thus facilitating resonance interconversion and consequently enabling more balanced and efficient carrier transport. Figure 3B is adapted from Ref.^[27] Copyright © 2016 American Chemical Society; (C and D) Current density-luminance-voltage (C) and efficiency-luminance (D) curves of the blue PhOLEDs based on DCzCO. Inset is the electroluminescence spectrum. Figure 3C and D is adapted from Ref.^[21] Copyright © 2020 The Royal Society of Chemistry. RVDA: Resonance variation-based dynamically adaptive.