Preparation and Luminescence of Al18B4O33：Cr3+ Phosphor

CAI Jian-liang; LIN Li-tian; TANG Li; ZOU Yang; MENG Jian-xin

doi:10.3788/fgxb20143503.0282

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Preparation and Luminescence of Al₁₈B₄O₃₃：Cr³⁺ Phosphor

更新时间：2020-08-12

- Preparation and Luminescence of Al₁₈B₄O₃₃：Cr³⁺ Phosphor
- Chinese Journal of Luminescence Vol. 35, Issue 3, Pages: 282-286(2014)
- 作者机构：
  
  暨南大学化学系, 广东广州 510632
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143503.0282
  CLC： O482.31
- Received：26 September 2013，
  
  Revised：16 December 2013，
  
  Published：03 March 2014
- 稿件说明：
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蔡建亮, 林利添, 汤利等. Al18B4O33：Cr3+荧光粉的制备及发光性质研究[J]. 发光学报, 2014,35(3): 282-286

CAI Jian-liang, LIN Li-tian, TANG Li etc. Preparation and Luminescence of Al18B4O33：Cr3+ Phosphor[J]. Chinese Journal of Luminescence, 2014,35(3): 282-286
蔡建亮, 林利添, 汤利等. Al18B4O33：Cr3+荧光粉的制备及发光性质研究[J]. 发光学报, 2014,35(3): 282-286 DOI： 10.3788/fgxb20143503.0282.

CAI Jian-liang, LIN Li-tian, TANG Li etc. Preparation and Luminescence of Al18B4O33：Cr3+ Phosphor[J]. Chinese Journal of Luminescence, 2014,35(3): 282-286 DOI： 10.3788/fgxb20143503.0282.

摘要

采用高温固相法合成了Al

：Cr

荧光粉，使用X射线粉末衍射仪和FSEM对样品的结构和形貌进行了表征，采用荧光分光光度计及紫外分光光度计研究了样品的发光性质及光吸收性质。结果表明，在紫外光或530~630 nm可见光激发下，样品能够发射出660~720 nm的红光，两个发射峰分别位于683 nm和694 nm，其最佳激发波长为590 nm。当原料中Al和B的量比为3.5时，样品的发光最强。初步分析了H

的加入对样品发光影响的机理。样品的最佳煅烧温度为1 150 ℃。随着Cr

掺杂浓度的升高，样品发光增强，但发光效率降低。样品的漫反射光谱表明，样品对绿光、黄橙光及紫外光有较强的吸收，是一种潜在的优良农用转光剂材料。

Abstract

:Cr

phosphor was prepared by solid-state reaction method. The samples were characterized by X-ray diffraction

FSEM

reflectance spectra

fluorescence emission and excitation spectra. The results show that the samples can be excited by UV light and green-orange light in the range of 530~630 nm and show deep red emission at 660~720 nm. Two emission peaks are observed at 683 nm and 694 nm

the maximum excitation wavelength is 590 nm. When the initial molar ratio is

(Al)/

(B)=3.5

the sample gives the strongest emission. The effect of H

on fluorescence of the phosphor is briefly discussed. The optimized sintered temperature is 1 150 ℃. The fluorescence intensity of the phosphor increases with the Cr

-doping concentration

and the fluorescence efficiency decreases with Cr

-doping concentration. The reflectance spectra show that the samples have strong absorption in both UV and yellow-orange region and have a promising prospect in the light conversion material for agricultural applications.

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Keywords

references

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