Linear Dependence of Photoluminescence in Mixed Ln-MOFs for Color Tunability and Barcode Application

  • Qing Yuan Yang
  • , Mei Pan
  • , Shi Chao Wei
  • , Kang Li
  • , Bin Bin Du
  • , Cheng Yong Su

Research output: Contribution to journalArticlepeer-review

144 Scopus citations

Abstract

Multicolored photoluminescence tuning in a single-phase material has invaluable potential in display and security applications. By deliberate design of a multifunctional antenna ligand and precise control of mixed metal ionic compositions in lanthanide metal-organic frameworks (Ln-MOFs), we achieved dichromatic fine-tuning among red, green, or blue primary colors through growth of a series of isomorphous Ln-MOF crystals·solvents of formula [LnnLn′1-n(TTP)2·H2O]Cl3 (Ln = Ln′ = Eu, Tb, and Gd, 1-3; Ln = Eu, Ln′ = Tb, 4-8; Ln = Gd, Ln′ = Eu, 9-11; Ln = Gd, Ln′ = Tb, 12-14; 0 < n < 1; TTP = 1′,1″-(2,4,6-trimethylbenzene-1,3,5-triyl)tris(methylene)tris(pyridine-4(1H)-one)). The linear dependence of the emissions were analyzed, and the mathematical matrix models were established, which are useful to control the synthetic conditions and to predict the color chromaticity coordinates under varied excitation wavelengths. The potential relevance of these multicolored photoluminescent Ln-MOFs to barcoded materials was demonstrated.

Original languageEnglish
Pages (from-to)5707-5716
Number of pages10
JournalInorganic Chemistry
Volume54
Issue number12
DOIs
StatePublished - 15 Jun 2015

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