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Efficient solid‐state emitters developed by a new approach are described. While emission from triphenylamine (TPA) and its dimer (DTPA) is weakened by aggregation, attaching tetraphenylethene (TPE) units to the amines boosts their emission efficiencies up to 100% in the aggregate state without harming their hole‐transport properties. The resultant 3TPETPA and 4TPEDTPA luminogens show excellent electroluminescence...
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