激发波长和Eu2+的掺杂量对Sr4Al14O25 ∶ Eu2+ , Dy3+发光性能的影响

王仁清

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激发波长和Eu²⁺的掺杂量对Sr₄Al₁₄O₂₅ ∶ Eu²⁺ , Dy³⁺发光性能的影响

论文 | 更新时间：2020-08-12

- 激发波长和Eu²⁺的掺杂量对Sr₄Al₁₄O₂₅ ∶ Eu²⁺ , Dy³⁺发光性能的影响
- Effects of Excitation Wavelength and the Eu²⁺-doped Content on Phosphorescence of Sr₄Al₁₄O₂₅ ∶ Eu²⁺ , Dy³⁺
- 发光学报 2010年31卷第5期页码：686-690
- 作者机构：
  
  江西财经大学新能源技术与应用研究中心,江西南昌,330013
- 作者简介：
  
  [ "王仁清(1969-), 男, 江西南昌人, 主要从事发光材料及其应用的研究。" ]
- 基金信息：
  
  江西省教育厅科技项目(赣[2007]260)();江西财经大学(0421205)资助项目()
- DOI：
  中图分类号： O482.31
- 收稿日期：2009-10-20，
  
  修回日期：2009-11-10，
  
  网络出版日期：2010-09-21，
  
  纸质出版日期：2010-09-21
- 稿件说明：
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王仁清. 激发波长和Eu2+的掺杂量对Sr4Al14O25 ∶ Eu2+ , Dy3+发光性能的影响[J]. 发光学报, 2010,31(5): 686-690

WANG Ren-qing. Effects of Excitation Wavelength and the Eu2+-doped Content on Phosphorescence of Sr4Al14O25 ∶ Eu2+ , Dy3+[J]. 发光学报, 2010,31(5): 686-690
王仁清. 激发波长和Eu2+的掺杂量对Sr4Al14O25 ∶ Eu2+ , Dy3+发光性能的影响[J]. 发光学报, 2010,31(5): 686-690 DOI：

WANG Ren-qing. Effects of Excitation Wavelength and the Eu2+-doped Content on Phosphorescence of Sr4Al14O25 ∶ Eu2+ , Dy3+[J]. 发光学报, 2010,31(5): 686-690 DOI：

摘要

采用溶胶-凝胶法在低温、还原气氛下制备了长余辉发光材料Sr

∶ Eu

。用X射线粉末晶衍射对其进行了物相鉴定

表明在1 200 ℃已经得到纯相的Sr

产物。研究了铕和锶的比值、激发光波长对所制备的Sr

∶ Eu

发光性能的影响并对其影响机理进行了探讨。样品的发光性能测试结果表明:采用溶胶-凝胶法制备长余辉发光材料Sr

∶ Eu

其灼烧温度比高温固相法灼烧温度低;激发光谱向长波方向延伸时

在488 nm处发射峰增强

在410 nm处发射峰减弱;在一定范围内发光强度随着Eu

量的增加而增强

的最佳掺杂量为0.007

的掺杂量超过0.007时会发生浓度猝灭。

Abstract

Sol-gels have been used to prepare Sr

∶ Eu

under low temperature at reducing atmosphere. The XRD shows that the production prepared at 1 200 ℃ is pure phase of Sr

. Effects of some factors such as different Eu-to-Sr ratio and excitation wavelength were studied

the impact mechanism were also discussed. The obtained results indicate that: sintering temperature of sol-gel method is lower than that of high temperature solid-phase method. The excitation spectra were shifted to the long-wavelength

the 488 nm and 410 nm emission peaks were enhanced with an optimal molar ratio of 0.007 Eu

.When the concentration is larger than 0.007

concentration quenching will occur.

关键词

Keywords

references

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Xian Deling, Huang Kelong, Li Zhaojian. Preparation and spectral properties of SrAl12O19 ∶ Eu2+ ,Dy3+ violet fluorescent powder

. Chin. J. Lumin.(发光学报), 2007, 28 (3):397-401 (in Chinese).

Chen Yonghu, Cheng Xuerui, Qi Zeming, et al. Study on the luminescent properties of the white long afterglow phosphors CaxMgSi2O5+x ∶ Dy3+

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Xiao Zhiguo. Luminescent Light-emitting Materials and Products

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