Loading Dyes into Chiral Cd/Zn-Metal-Organic Frameworks for Efficient Full-Color Circularly Polarized Luminescence.

Autor: Yin HQ; Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, 391 West Binshui Road, 300384, Tianjin, CHINA., Chen J; Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering, CHINA., Xue YW; Tianjin University of Technology, Institute of functional Crystals, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering, CHINA., Ren J; Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering, CHINA., Wang XH; Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering, CHINA., Fan HR; Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering, CHINA., Wei SY; Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering, CHINA., Sun B; Tianjin University of Technology, Institute for New Energy Materials and Low Carbon Technologies, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering, CHINA., Zhang ZM; Tianjin University of Technology, School of Materials Science and Engineering, No. 391 Binshuixi Road, 300384, Tianjin, CHINA.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2024 Oct 04, pp. e202407596. Date of Electronic Publication: 2024 Oct 04.
DOI: 10.1002/anie.202407596
Abstrakt: Host-guest chemistry of chiral metal-organic frameworks (MOFs) has endowed them with circularly polarized luminescence (CPL), it is still limited for MOFs to systematically tune full-color CPL emissions and sizes. This work directionally assembles the chiral ligands, metal sites and organic dyes to prepare a series of crystalline enantiomeric D/L-Cd/Zn-n MOFs (n = 1 ~ 5, representing the adding amount of dyes), where D/L-Cd/Zn with the formula of Cd2(D/L-Cam)2(TPyPE) and Zn2(D/L-Cam)2(TPyPE) (D/L-Cam = D/L-camphoric acid, TPyPE = 4,4',4'',4'''-(1,2-henediidenetetra-4,1-phenylene)tetrakis[pyridine]) were used as the chiral platforms.  The framework-dye-enabled emission and through-space chirality transfer facilitate D/L-Cd/Zn-n bright full-color CPL activity. The ideal yellow CPL of D-Cd-5 and D-Zn-4, with |glum| as 4.9 × 10-3 and 1.3 × 10-3 and relatively high photoluminescence quantum yield of 40.79% and 45.40%, are further assembled into a white CPL light-emitting diode. The crystal sizes of D/L-Cd/Zn-n were found to be strongly correlated to the types and additional amounts of organic dyes, that the positive organic dyes allow for the preparation of > 7 mm bulks and negative dyes account for sub-20 μm particles. This work opens a new avenue to fabricate full-color emissive CPL composites and provides a potentially universal method for controlling the size of optical platforms.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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