Fabrication of One-dimensional LaPO4 : Eu3+ Micro-nanofibers by Electrospinning

doi:10.3724/SP.J.1077.2011.00271

Abstract

Abstract: Eu³⁺-doped LaPO₄ micro-nanofiberswere prepared by the electro spinning technology. Scanning electron microscope(SEM), X-ray diffraction (XRD), the mogravimetry-differential thermal analysis(TG-DTA), and photoluminescencespectra (PL) were used to characterize the obtained samples. XRD patterns indicate that theas-prepared micro-nanofibers are crystallized well at 800℃ and assign edto JCPDS-35-0731 of the monoclinic LaPO₄crystal. Upon excitation into the Eu³⁺ at 409 nm, the emission spectrum of LaPO₄:Eu³⁺ micro-nanofibers is composed of ⁵ D₀- ⁷F_J(J = 1, 2, 3, 4) emission lines of Eu³⁺, with the transition ⁵ D₀ - ⁷ F₂ (at 618 nm) being the most prominent group, which is characterized by red emission. The optimum doping concentration of Eu³⁺is 5mol% in the LaPO₄: Eu³⁺ micro-nanofibers. The luminescence decay curve of LaPO₄: Eu³⁺ micro-nano fibers shows single exponential behavior, and the lifetime(τ) of Eu³⁺ is about 3.7 ms.

Key words: electrospinning, LaPO₄:Eu³⁺micro-nanofibers, luminescence

CLC Number:

O061

LI Zhen, GENG Jia-Qiang, LIU Wei. Fabrication of One-dimensional LaPO₄ : Eu³⁺ Micro-nanofibers by Electrospinning[J]. Journal of Inorganic Materials, 2011, 26(3): 271-274.

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Fabrication of One-dimensional LaPO₄ : Eu³⁺ Micro-nanofibers by Electrospinning

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