A New Sol–Gel Material Doped with an Erbium Complex and Its Potential Optical-Amplification Application

Authors

  • L.-N. Sun,

    1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
    2. Graduate School of the Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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  • H.-J. Zhang,

    1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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  • L.-S. Fu,

    1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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  • F.-Y. Liu,

    1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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  • Q.-G. Meng,

    1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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  • C.-Y. Peng,

    1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
    2. Graduate School of the Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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  • J.-B. Yu

    1. Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
    2. Graduate School of the Chinese Academy of Sciences, Changchun, Jilin 130022, PR China
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  • This work was supported by the National Natural Science Foundation of China (No. 20171043, No. 20372060), the Key National Natural Science Foundation of China (No. 20131010), the National Natural Science Foundation of China-Special for Instruments (No. 20121701), “863” National Foundation for High Technology Development and Programming (No. 2002AA302105,2002AA324080), and the Foreign Communion and Cooperation of National Natural Science Foundation of China (No. 20340420326). We thank Prof. Jiang-Gao Mao of the Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences for helping with the fluorescence measurements. We also thank Prof. Si-Yuan Zhang and Prof. Zhi-Jian Wu of the Changchun Institute of Applied Chemistry for guidance with the Judd–Ofelt theory.

Abstract

The crystal structure of a ternary Er(DBM)3phen complex (DBM = dibenzoylmethane; phen = 1,10-phenanthroline) and its in-situ synthesis via a sol–gel process are reported. The infrared (IR), diffuse reflectance (DR), and fluorescence spectra of the pure complex and the Er3+/DBM/phen co-doped luminescent hybrid gel, formed via an in-situ method (ErDP gel), have been investigated. The results reveal that the erbium complex is successfully synthesized in situ in the ErDP gel. Excitation at the maximum absorption wavelength of the ligands resulted in the typical near-IR luminescence (centered at around 1.54 μm) resulting from the 4I13/2 → 4I15/2 transition of the Er3+ ion, which contributes to the efficient energy transfer from the ligands to the Er3+ ion in both the Er(DBM)3phen complex and the ErDP gel (an antenna effect). The full width at half maximum (FWHM) centered at 1541 nm in the emission spectrum of the ErDP gel is 72 nm, which has potential for optical-amplification applications. Further theoretical analysis on the Er3+ ion in the ErDP gel shows that it appears to be a promising candidate for tunable lasers and planar optical amplifiers.

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