The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Luminescence Properties of Nd3+ and Yb3+ Complexes in Organic Solvents for Liquid Laser Medium
Jeong Ho KIM, Nobuaki NAKASHIMA, Yasuchika HASEGAWA, Yuji WADA, Shozo YANAGIDA, Tatsuhiko YAMANAKA
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Keywords: Nd3+ and Yb3+ complexes, Luminescence properties, Judd-Ofelt analysis, Chemical shifts, Coordination ability
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1998 Volume 26 Issue 9 Pages 691-695

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Abstract
Perdeuterated hexafluoroacetylacetonato-neodymium [Nd (HFA-D) 3] and -ytterbium [Yb (HFA-D) 3] complexes were synthesized by the keto-enol tautomerism reaction of Nd (HFA-H) 3 and Yb (HFA-H) 3 in methanol-d4 in order to reduce the radiationless transition to the ligands. The luminescence properties of the Nd (HFA-D) 3 complex in organic solvents were analyzed by the Judd-Ofeltheory. The luminescence quantum yield of the Yb (HFA-D) 3 complex increased with the increasing coordination ability of the solvent molecules. The luminescence lifetime of the Yb (HFA-D) 3 complex in dimethylstilfoxide (DMSO-d6) which had the highest coordination ability was 66 μs.
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