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

Paper ID Volume ID Publish Year Pages File Format Full-Text
26371 43949 2016 10 PDF Available
Title
Efficient near-infrared (NIR) luminescent PMMA-supported hybrid materials doped with tris-β-diketonate Ln3+ complex (Ln = Nd or Yb)
Abstract

•PMMA-supported doping hybrid materials.•Trifluorinated and acylpyrazole-modified β-diketonate Ln3+ complexes.•Sensitization and intra-molecular energy transfer for NIR luminescence.

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 (ФLLn = (0.068–1.12% and ηsens = 54-83%) for complexes 2 and 3. Especially for their series of PMMA-supported hybrid materials [Ln(L)3(2,2′-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.

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Keywords
PMMA-supported doping hybrid materials; NIR luminescent tris-β-diketonate Ln3+ complexes; Trifluorinated and acylpyrazole-modified β-diketonate; Energy transfer
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Efficient near-infrared (NIR) luminescent PMMA-supported hybrid materials doped with tris-β-diketonate Ln3+ complex (Ln = Nd or Yb)
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 314, 1 January 2016, Pages 104–113
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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Online Support
Any Questions? feel free to contact us