Coordination-Locked Engineering to Achieve Narrowband Room Temperature Phosphorescence in Non-Rare Earth Metal-Organic Frameworks.

ABSTRACT: Non-rare earth (RE) narrowband phosphorescent metal-organic frameworks (MOFs) remain a great challenge due to spectral broadening from overlapping emissions in complex coordination systems. Here, the first non-RE narrowband room temperature phosphorescent (RTP) MOF crystal, Sr-tbc, constructed via coordination-locked phosphorescence amplification (CLPA) of a tailored phosphor, 1-(4-carboxyphenyl)-1H-1,2,4-triazole-3-carboxylic acid (H₂tbc), is presented. Sr-tbc, with 1D coordination chains, exhibits a significant narrowband RTP emission over a wide excitation wavelength range of 280-360 nm with a minimum half-height full width value of 28.5 nm. This exceptional narrowband emission is attributed to the targeted coordination between triazolinic acid and Sr ions. This special coord

SUBMITTER: Zhang W 

PROVIDER: S-EPMC12806520 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature