1949/01/01 by Ting Zhang, Xue Yong, Jingkun Yu +10 · 1 citation
Agricultural and Biological Sciences · Chemistry · Engineering · Materials Science · #Forensic Entomology and Diptera Studies #Insect and Pesticide Research #Insect behavior and control techniques #Luminescence and Fluorescent Materials #Metal-Organic Frameworks: Synthesis and Applications #Nanoplatforms for cancer theranostics
paper · doi:10.1002/adma.202211729
openalex publication_date 1949/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
As equally essential as the synthesis of new materials, maneuvering new structure configurations can endow the brand-new functional properties to existing materials, which is also one of the core goals in the synthesis community. In this respect, pressure-induced emission (PIE) that triggers photoluminescence (PL) in nonemission materials is an emerging stimuli-responsive smart materials technology. In the PIE paradigms, harvesting bright PL at ambient conditions, however, has remained elusive. Herein, a remarkable PIE phenomenon is reported in initially nonemission Zn(BDC)(DMF)(H<sub>2</sub> O) (MOF-2), which shows bright blue-emission at 455 nm under pressure. Intriguingly, the bright blue PL with an excellent photoluminescence quantum yield up to 70.4% is unprecedentedly retained to ambient conditions upon decompression from 16.2 GPa. The detailed structural analyses combined with density functional theory calculations reveal that hydrogen bonding cooperativity effect elevates powerfully the rotational barrier of the linker rotor to 3.87 eV mol<sup>-1</sup> from initial 0.91 eV mol<sup>-1</sup> through pressure treatment. The downgrade rotational freedom turns on PL of MOF-2 after releasing pressure completely. This is the first case of harvesting PIE to ambient conditions. These findings offer a new platform for the creation of promising alternatives to high-performance PL materials based on initially nonemission counterparts.