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Synthesis and characterization of YAG:Ce,Gd and YAG:Ce,Gd/PMMA nanocomposites for optoelectronic applications

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Abstract

A sol–gel method was developed to obtain cerium-, gadolinium-(co)activated yttrium aluminum garnet (YAG:Ce,Gd) phosphor. The composite was obtained by incorporating YAG:Ce,Gd powder in poly(methyl methacrylate) (PMMA) matrix in the presence of tetrahydrofuran (THF). Sample characterization was performed using Fourier transform infrared spectrometry, X-ray diffraction, energy dispersive X-ray spectroscopy, field emission scanning electron microscopy, and fluorescence spectroscopy. Results showed a garnet pure phase at 1000 C, a nanoscale phosphor with spherical morphology and a good dispersion in PMMA matrix without structural modification of YAG:Ce,Gd in the composite. This type of phosphor can be used for all commercial blue chips and YAG:Ce,Gd/PMMA composite is a good candidate for white light-emitting devices.

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Acknowledgements

This work was supported by the National Basic Funding Programme CONVERT—Project No. PN09290301 (2008-2013). Authors would like to acknowledge the cooperation of Andrei Avram.

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Authors and Affiliations

  1. National Institute for Research and Development in Microtechnologies, IMT Bucharest, 126A Erou Iancu Nicolae Str., 077190, Bucharest, Romania

    Vasilica Tucureanu, Alina Matei, Iuliana Mihalache, Mihai Danila, Marian Popescu & Bogdan Bita

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  1. Vasilica Tucureanu
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  2. Alina Matei
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  3. Iuliana Mihalache
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  4. Mihai Danila
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  5. Marian Popescu
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  6. Bogdan Bita
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Correspondence to Vasilica Tucureanu or Alina Matei.

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Tucureanu, V., Matei, A., Mihalache, I. et al. Synthesis and characterization of YAG:Ce,Gd and YAG:Ce,Gd/PMMA nanocomposites for optoelectronic applications. J Mater Sci 50, 1883–1890 (2015). https://doi.org/10.1007/s10853-014-8751-9

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  • DOI: https://doi.org/10.1007/s10853-014-8751-9

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