Highly efficient near-infrared (NIR) luminescent tris-β-diketonate Yb3 + complex in solution and in PMMA
作者： Xinyu Zhang , Lin Liu , Chao Yu , Hongyan Li , Guorui Fu
DOI: 10.1016/J.INOCHE.2016.06.006
关键词:
摘要: Abstract 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)-1 H -pyrazol-5(4 )-one; Phen = 1,10-phenanthroline; Ln = La, 1 ; Ln = Nd, 2 Ln = Yb, Ln = Er, 4 or Ln = Gd, 5 ), relatively lower ligands-based ππ ⁎ energy level (18,727 cm − 1 ) results in highly efficient NIR luminescence ( Ф Yb = 1.37% and L = 1.06%) 3 + -based solution higher quantum yield = 1.77% = 1.31%) PMMA (Poly(methyl methacrylate) besides improved physical properties.
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