Zero-dimensional hybrid binuclear manganese chloride with thermally stable yellow emission.

Photoluminescence (PL) thermal quenching of hybrid metal halides blocks their applications. Herein, a novel type of 0D hybrid metal halide, [Pb(C 12 H 24 O 6 )Cl] 2 [Mn 2 Cl 6 ], with broad yellow emission and near-unity PL quantum yield is reported. Importantly, it preserves outstanding thermal stability up to 450 K.