Chem. Sci., 2025, Accepted Manuscript DOI: 10.1039/D5SC05501F, Edge Article Deli Li, Denghui Liu, Mengke Li, Qingchao Liu, Wei Liu, wei Li, Shi-Jian Su, Xuchuan Jiang To address the spectral broadening and red shift inherent in multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters, which are caused by aggregation due to their planar structures, we design a...