Microwave-assisted synthesis and characterization of Y2O3:Eu(III)-benzoate hybrid nanophosphors

José Antonio Luna Guzman; Raúl Iván Sánchez Alarcón; Gilberto Alarcón Flores; Ciro Falcony Guajardo; Raúl Borja-Urby; Nicolás Cayetano Castro; Miguel Ángel Aguilar Frutis; Salvador Carmona-Téllez

doi:10.1117/1.JNP.12.026019

28 June 2018 Microwave-assisted synthesis and characterization of Y₂O₃:Eu(III)-benzoate hybrid nanophosphors

José Antonio Luna Guzman, Raúl Iván Sánchez Alarcón, Gilberto Alarcón Flores, Ciro Falcony Guajardo, Raúl Borja-Urby, Nicolás Cayetano Castro, Miguel Ángel Aguilar Frutis, Salvador Carmona-Téllez

Author Affiliations +

Journal of Nanophotonics, Vol. 12, Issue 2, 026019 (June 2018). https://doi.org/10.1117/1.JNP.12.026019

Abstract

The optical and structural characteristics of Y₂O₃ : Eu (III)-benzoate hybrid nanophosphors, synthesized by the microwave-assisted solvothermal technique, are reported in this work. Benzyl alcohol was used during the synthesis, carried out at low temperatures in the microwave reactor, to obtain the Y₂O₃ : Eu(III)-benzoate-layered hybrid nanophosphors. The benzyl alcohol led to the incorporation of benzene rings (belonging to benzoate group) around the Y₂O₃ : Eu(III) molecules, promoting a lamellar structure and showing the previously reported luminescent “antenna effect” in the nanophosphors. Y₂O₃ : Eu(III)-benzoate nanophosphors showed a high photoluminescence emission intensity at 590, 612, 650, and 697 nm due to the interelectronic D₀5 to F₁7, F₂7, F₃7, and F7₄ transitions of the europium ions. A stark split might be present due to the variation of the annealing temperature given to the Y₂O₃ : Eu(III)-benzoate nanophosphors. The nanostructured hybrids showed the appearance of complex morphologies similar to flower petals. The as-obtained nanophosphors were in the range of ∼20 nm and showed the reported x-ray diffraction reflections for these kinds of materials.

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José Antonio Luna Guzman, Raúl Iván Sánchez Alarcón, Gilberto Alarcón Flores, Ciro Falcony Guajardo, Raúl Borja-Urby, Nicolás Cayetano Castro, Miguel Ángel Aguilar Frutis, and Salvador Carmona-Téllez "Microwave-assisted synthesis and characterization of Y₂O₃:Eu(III)-benzoate hybrid nanophosphors," Journal of Nanophotonics 12(2), 026019 (28 June 2018). https://doi.org/10.1117/1.JNP.12.026019

Received: 3 March 2018; Accepted: 12 June 2018; Published: 28 June 2018

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