Synergistic Linkage Engineering in Donor–Acceptor Covalent Organic Frameworks for NIR-II Absorption and Efficient Photothermal Conversion
Covalent organic frameworks (COFs) are emerging crystalline porous polymers with precisely defined structures and tunable optoelectronic properties. However, developing COFs that simultaneously achieve NIR-II light absorption and controlled excited-state dynamics remains challenging, limiting their applications in ad...