4,4'-Bis(N-carbazolyl)-1,1'-biphenyl
98%
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description Product Description
Widely used in organic light-emitting diodes (OLEDs), this compound serves as an efficient hole-transporting and host material in blue-emitting layers. Its high triplet energy level makes it suitable for hosting phosphorescent and thermally activated delayed fluorescence (TADF) emitters, especially in blue and deep-blue devices. It exhibits good thermal stability and film-forming properties when deposited by vacuum evaporation, enhancing device longevity and performance. Due to its bipolar charge transport characteristics, it helps balance electron and hole currents in the emissive layer, improving electroluminescence efficiency. It is also employed in perovskite LEDs and as a component in multi-layered emissive architectures to confine excitons and reduce efficiency roll-off.
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