Fig. 1 | Nature Communications

Fig. 1

From: Design rules for light-emitting electrochemical cells delivering bright luminance at 27.5 percent external quantum efficiency

Fig. 1

Schematics and steady-state simulation profiles of host–guest light-emitting electrochemical cells. Schematics of the designed host–guest LEC a at open circuit and b during steady-state operation, with the energy levels of the host and guest indicated by the solid and dashed lines, respectively, and the symbols identified in panel c. d The simulated steady-state concentration and voltage profiles for a symmetric host–guest LEC. The same device with e a deepened electron-trap level or f a decreased electron mobility in the host. The insets present the calculated quantum efficiency, assuming 100% photoluminescence quantum efficiency of the guest emitter and perfect outcoupling

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