Fig. 4: Electroluminescence characterizations of single-emissive-layer TADF WOLEDs comprising ladder-like energy-relaying exciplexes. | Nature Communications

Fig. 4: Electroluminescence characterizations of single-emissive-layer TADF WOLEDs comprising ladder-like energy-relaying exciplexes.

From: Ladder-like energy-relaying exciplex enables 100% internal quantum efficiency of white TADF-based diodes in a single emissive layer

Fig. 4

a An illustration showing device configuration, the emissive layer components of mCP:pDPBITPO- and mCP:DpPBITPO-hosted white TADF devices, and molecular structures of the doped dye emitters. b Commission International de I’Eclairage (CIE) coordinates of mCP:DpPBITPO-hosted TADF WOLEDs, fabricated with mCP:DpPBITPO:35% DMAC-DPS:x%4CzTPNBu. Their chromaticity is comparable to that of a standard daylight source (Illuminant D65) or an incandescent light (Illuminant A). c Efficiency vs. luminance measurements of the devices based on 35% DMAC-DPS and 0.5% 4CzTPNBu codoped mCP:pDPBITPO (W1), mCP:DpPBITPO (W2), mCP:TPBI (W3) and mCP:BPhen (W4). d Photographs of mCP:pDPBITPO- and mCP:DpPBITPO-hosted WOLED prototypes with lateral dimensions of 3 cm × 3 cm (1.5 inch2) and 8 cm × 8 cm (10 inch2).

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