Highly efficient near-infrared (NIR) luminescent tris-β-diketonate Yb3 + complex in solution and in PMMA

Xinyu Zhang, Lin Liu, Chao Yu, Hongyan Li, Guorui Fu, Xingqiang Lü*, Rick W K WONG, Richard A. Jones

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


In the series of binary tris-β-diketonate complexes [Ln(L)3(Phen)] (HL = (Z)-3-methyl-1-phenyl-4-(2,2,2-trifluoro-1-hydroxyethylidene)-1H-pyrazol-5(4H)-one; Phen = 1,10-phenanthroline; Ln = La, 1; Ln = Nd, 2; Ln = Yb, 3; Ln = Er, 4 or Ln = Gd, 5), the relatively lower ligands-based 3ππ energy level (18,727 cm- 1) results in the highly efficient NIR luminescence (ΦYbYb = 1.37% and ΦYbL = 1.06%) of Yb3 +-based 3 in solution and the higher NIR quantum yield (ΦYbYb = 1.77% and ΦYbL = 1.31%) in PMMA (Poly(methyl methacrylate) besides the improved physical properties.

Original languageEnglish
Pages (from-to)153-156
Number of pages4
JournalInorganic Chemistry Communication
Publication statusPublished - 1 Aug 2016

Scopus Subject Areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

User-Defined Keywords

  • NIR luminescence in solution or PMMA
  • Sensitization and energy transfer
  • Tris-β-diketonate Ln complexes


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