Experimental determination of energy transfer in Eu(III) complexes, based on pyrazole substituted 1, 3-diketones

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Varaksina, E.A.^1,2 ; Ambrozevich, S.A.^1 ; Datskevich, N.P.^1 ; Taydakov, I.V.^1 ; Vitukhnovsky, A.G.^1,2,3

S.I. Vavilov Department of Luminescence, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninsky Prospekt, Moscow

119991, Russia^1

Department of Problems of Physics and Energetics, Moscow Institute of Physics and Technology, 9 Institutsky per., Dolgoprudny, Moscow Region

141700, Russia^2

National Research Nuclear University (Moscow Engineering Physics Institute), 31 Kashirskoe shosse, Moscow

115409, Russia^3

关键词: 1 ,3-Diketones;    Beta-diketonates;    Diketonate complexes;    Efficiency of energy transfer;    Experimental determination;    Luminescence quantum yields;    OLED applications;    Optical spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012026/pdf
DOI  :  10.1088/1757-899X/112/1/012026

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

We succeeded in synthesis of the novel Eu-based luminophore with almost 100% efficiency of energy transfer from ligands to the lanthanide ion. The luminophores with β- diketonate ligands were characterized by means of optical spectroscopy. Impact of different types of β-diketonates on the quantum yield of luminescence was revealed. A β-diketonate complex exhibiting the highest luminescence quantum yield and prospective for OLED applications was determined. The reasons for decreasing quantum efficiencies for other types of investigated ligands are discussed.