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Hydrothermal synthesis, characterization, and luminescence of Ca2B2O5:RE (RE = Eu3+, Tb3+, Dy3+) nanofibers

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Abstract

Ca2B2O5:RE (RE = Eu3+, Tb3+, Dy3+) nanofibers were synthesized by the hydrothermal reaction method. The structural refinement was conducted on the base of the X-ray powder diffraction (XRD) measurements. The surface properties of the Ca2B2O5:RE (RE = Eu3+, Tb3+, Dy3+) nanofibers were investigated by the measurements such as the scanning electron microscope (SEM), transmission electron microscope (TEM), and the energy dispersive spectrum (EDS). The nanofiber has a diameter of about 100 nm and a length of several micrometers. The luminescence properties such as photoluminescence excitation (PLE) and emission spectra (PL), decay lifetime, color coordinates, and the absolute internal quantum efficiency (QE) were reported. Ca2B2O5:Eu3+ nanofibers show the red luminescence with CIE coordinates of (x = 0.41, y = 0.51) and the luminescence lifetime of 0.63 ms. The luminescence of Ca2B2O5:Tb3+ nanofibers is green color (x = 0.29, y = 0.53) with the lifetime of 2.13 ms. However, Dy3+-doped Ca2B2O5 nanofibers present a single-phase white-color phosphor with the fluorescence decay of 3.05 ms. Upon near-UV excitation, the absolute quantum efficiency is measured to be 65, 35, and 37 % for Eu3+-, Tb3+-, Dy3+-doped Ca2B2O5 nanofibers, respectively. It is suggested that Ca2B2O5:RE (RE = Eu3+, Tb3+, Dy3+) nanofibers could be an efficient phosphor for lighting and display.

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Acknowledgments

This work was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2013RA1A2009154) and by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), China.

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Authors and Affiliations

  1. State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China

    Li Yang, Yingpeng Wan, Yuze Li, Yinfu Pu & Yanlin Huang

  2. Department of Physics and Interdisciplinary Program of Biomedical Engineering, Pukyong National University, Busan, 608-737, Republic of Korea

    Cuili Chen & Hyo Jin Seo

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  1. Li Yang
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  2. Yingpeng Wan
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  3. Yuze Li
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  4. Yinfu Pu
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  5. Yanlin Huang
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  6. Cuili Chen
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  7. Hyo Jin Seo
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Correspondence to Yanlin Huang or Hyo Jin Seo.

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Li Yang, Yingpeng Wan, Yuze Li, Yinfu Pu, Yanlin Huang, Cuili Chen, and Hyo Jin Seo declare that there is no conflict of interests regarding the publication of this article.

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Yang, L., Wan, Y., Li, Y. et al. Hydrothermal synthesis, characterization, and luminescence of Ca2B2O5:RE (RE = Eu3+, Tb3+, Dy3+) nanofibers. J Nanopart Res 18, 94 (2016). https://doi.org/10.1007/s11051-016-3372-7

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  • DOI: https://doi.org/10.1007/s11051-016-3372-7

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