Efficient near-infrared (NIR) luminescent PMMA-supported hybrid materials doped with tris-β-diketonate Ln3+ complex (Ln = Nd or Yb)

Zhao Zhang, Chao Yu, Lin Liu, Hongyan Li, Yani He, Xingqiang Lü*, Rick W K WONG, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Based on the self-assembly of a trifluorinated and acylpyrazole-modified β-diketonate ligand HL ((Z)-3-methyl-1-phenyl-4-(2,2,2-trifluoro-1-hydroxyethylidene)-1H-pyrazol-5(4H)-one), LnCl3·6H2O (Ln = La, Nd, Yb, Er, Gd, Eu or Tb) and 2,2′-bpy (2,2′-bipyridine), seven tris-β-diketonate complexes [Ln(L)3(2,2′-bpy)] (Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4; Ln = Gd, 5; Ln = Eu, 6 or Ln = Tb, 7) were obtained, respectively, where the relatively lower ligands-based 3ππ energy level results in the good NIR luminescent properties ( = (0.068-1.12% and β;b = 54-83%) for complexes 2 and 3. Especially for their series of PMMA-supported hybrid materials [Ln(L);bsubesubprime-bpy)]@PMMA, the doping not only causes the improved thermal stability and film-forming property, but also endows more efficient NIR luminescent property even at a doping concentration up to 1:200.

Original languageEnglish
Pages (from-to)104-113
Number of pages10
JournalJournal of Photochemistry and Photobiology A: Chemistry
Publication statusPublished - 1 Jan 2016

Scopus Subject Areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

User-Defined Keywords

  • Energy transfer
  • NIR luminescent tris-β-diketonate Ln complexes
  • PMMA-supported doping hybrid materials
  • Trifluorinated and acylpyrazole-modified β-diketonate


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