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Multi‐resonance thermally activated delayed fluorescence (MR‐TADF) materials hold great promise for advanced high‐resolution organic light‐emitting diode (OLED) displays. However, persistent challenges, such as severe aggregation‐caused quenching (ACQ) and slow spin‐flip, hinder their optimal performance. We propose a synergetic steric‐hindrance and excited‐state modulation strategy for MR‐TADF emitters,...
Supramolecular systems consisting of covalent organic frameworks (COFs) and Ni complex are designed for robust photocatalytic reduction of CO2. Multiple heteroatom‐hydrogen bonding between the COF and Ni complex is identified to play a decisive role in the photoexcited electron transfer across the liquid‐solid interface. The diminution of steric groups on COF or metal complex can optimize catalytic...