An organic dimer with TADF-type electroexcitation afterglow

A rigid-flexible steric blocking strategy for highly bright and ultrawide piezochromism in the deep-red/near-infrared region

“…Such independent dimers have proven to be highly emissive. [43][44][45][46][47][48] Furthermore, each dimer was surrounded by four alkyl carbazoles. The four carbazole planes were distributed on both sides of the dimer and perpendicular to the dimer plane under the driving force of multiple C-HÁ Á Áp interactions and hydrogen bonding with distances of 2.7-3.0 Å (Fig.…”