TY - JOUR
T1 - Efficient near-infrared (NIR) luminescent PMMA-supported hybrid materials doped with tris-β-diketonate Ln3+ complex (Ln = Nd or Yb)
AU - Zhang, Zhao
AU - Yu, Chao
AU - Liu, Lin
AU - Li, Hongyan
AU - He, Yani
AU - Lü, Xingqiang
AU - WONG, Rick W K
AU - Jones, Richard A.
N1 - Funding Information:
This work is funded by the National Natural Science Foundation ( 21373160 , 91222201 , 21173165 ), the Program for New Century Excellent Talents in University from the Ministry of Education of China ( NCET-10-0936 ), the research fund for the Doctoral Program ( 20116101110003 ) of Higher Education , the Science and Technology and Innovation Project ( 2012KTCQ01-37 ) of Shaanxi Province , Graduate Innovation and Creativity Fund (Visiting Learner) of Northwest University in PR of China.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - 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.
AB - 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.
KW - Energy transfer
KW - NIR luminescent tris-β-diketonate Ln complexes
KW - PMMA-supported doping hybrid materials
KW - Trifluorinated and acylpyrazole-modified β-diketonate
UR - http://www.scopus.com/inward/record.url?scp=84940653810&partnerID=8YFLogxK
U2 - 10.1016/j.jphotochem.2015.08.022
DO - 10.1016/j.jphotochem.2015.08.022
M3 - Journal article
AN - SCOPUS:84940653810
SN - 1010-6030
VL - 314
SP - 104
EP - 113
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
ER -