Influence of Y3+, Bi3+ Content on Photoluminescence of YVO4∶Dy3+ Phosphor Induced by Ultraviolet Excitation

doi:10.3964/j.issn.1000-0593(2011)08-2053-05

摘要
参考文献
相关文章 (1)

全文: PDF (1981 KB)
输出: BibTeX | EndNote (RIS)

摘要： Y_xVO₄∶0.01Dy³⁺ and Y_0.99-xVO₄∶0.01Dy³⁺, xBi³⁺ phosphors were synthesized by chemical co-precipitation method. Their crystal structure, micromorphology and photoluminescence (PL) properties were investigated by X-ray diffraction (XRD), scan electron microscopy (SEM) and spectrofluorometer. Y_xVO₄∶0.01Dy³⁺ and Y_0.99-xVO₄∶0.01Dy³⁺, xBi³⁺ phosphors have a broad excitation band from about 250 to 350 nm including a strongest peak at about 310 nm. Under its excitation, the emission spectra exhibits two sharp peaks, one of which centered at about 483 nm for ⁴F_9/2→⁶H_15/2 transition of Dy³⁺ and the other at about 574 nm due to the ⁴F_9/2→⁶H_13/2 transition of Dy³⁺. For Y_xVO₄∶0.01Dy³⁺ (x=0.94, 0.97, 0.99, 1.01, 1.03) phosphor, with increasing value of x, the body color of phosphor changes from yellow to white and the strongest peak in the excitation spectra shifts a little to shorter wavelength. It is detrimental to luminous intensity when Y³⁺ content deviates stoichiometric ratio. For Y_0.99-xVO₄∶0.01Dy³⁺, xBi³⁺ (x=0.01, 0.05, 0.1, 0.15, 0.2, 0.25) phosphor, the samples have extraneous bismuth vanadium oxide phase except for the major tetragonal zircon structure when x≥0.20. With increasing value of x, the band edge in the excitation spectra shifts to longer wavelength, the excitation intensity and luminous intensity increase early and decrease late. When the value of x is 0.01, the intensities increase evidently. In addition, the influence of Y³⁺ or Bi³⁺ on the color temperature of emission and micromorphology of YVO₄∶Dy³⁺ is slight.

关键词：YVO₄∶Dy³⁺;Phosphor;Body color;Photoluminescence;Color temperature

Abstract：Y_xVO₄∶0.01Dy³⁺ and Y_0.99-xVO₄∶0.01Dy³⁺, xBi³⁺ phosphors were synthesized by chemical co-precipitation method. Their crystal structure, micromorphology and photoluminescence (PL) properties were investigated by X-ray diffraction (XRD), scan electron microscopy (SEM) and spectrofluorometer. Y_xVO₄∶0.01Dy³⁺ and Y_0.99-xVO₄∶0.01Dy³⁺, xBi³⁺ phosphors have a broad excitation band from about 250 to 350 nm including a strongest peak at about 310 nm. Under its excitation, the emission spectra exhibits two sharp peaks, one of which centered at about 483 nm for ⁴F_9/2→⁶H_15/2 transition of Dy³⁺ and the other at about 574 nm due to the ⁴F_9/2→⁶H_13/2 transition of Dy³⁺. For Y_xVO₄∶0.01Dy³⁺ (x=0.94, 0.97, 0.99, 1.01, 1.03) phosphor, with increasing value of x, the body color of phosphor changes from yellow to white and the strongest peak in the excitation spectra shifts a little to shorter wavelength. It is detrimental to luminous intensity when Y³⁺ content deviates stoichiometric ratio. For Y_0.99-xVO₄∶0.01Dy³⁺, xBi³⁺ (x=0.01, 0.05, 0.1, 0.15, 0.2, 0.25) phosphor, the samples have extraneous bismuth vanadium oxide phase except for the major tetragonal zircon structure when x≥0.20. With increasing value of x, the band edge in the excitation spectra shifts to longer wavelength, the excitation intensity and luminous intensity increase early and decrease late. When the value of x is 0.01, the intensities increase evidently. In addition, the influence of Y³⁺ or Bi³⁺ on the color temperature of emission and micromorphology of YVO₄∶Dy³⁺ is slight.

Key words：YVO₄∶Dy³⁺;Phosphor;Body color;Photoluminescence;Color temperature

收稿日期: 2010-08-11 修订日期: 2010-11-25

中图分类号:

O482.3

通讯作者: ZHAO Mai-qu E-mail: zhaomq@mail.xaut.edu.cnIntroduction

引用本文:

HE Yu-yang, ZHAO Mai-qun^*, SONG Yan-yan, ZHAO Gao-yang, LI Feng . Influence of Y³⁺, Bi³⁺ Content on Photoluminescence of YVO₄∶Dy³⁺ Phosphor Induced by Ultraviolet Excitation[J]. 光谱学与光谱分析, 2011, 31(08): 2053-2057.
HE Yu-yang, ZHAO Mai-qun^*, SONG Yan-yan, ZHAO Gao-yang, LI Feng . Influence of Y³⁺, Bi³⁺ Content on Photoluminescence of YVO₄∶Dy³⁺ Phosphor Induced by Ultraviolet Excitation. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(08): 2053-2057.

链接本文:

https://www.gpxygpfx.com/CN/10.3964/j.issn.1000-0593(2011)08-2053-05 或 https://www.gpxygpfx.com/CN/Y2011/V31/I08/2053