SYNTHESIS AND LUMINESCENCE PROPERTIES OF RVNb2O9(R=Y, Gd, La)：Eu3+(or Dy3+)

Chi Lisheng; Su Qiang

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SYNTHESIS AND LUMINESCENCE PROPERTIES OF RVNb₂O₉(R=Y, Gd, La)：Eu³⁺(or Dy³⁺)

更新时间：2020-08-11

- SYNTHESIS AND LUMINESCENCE PROPERTIES OF RVNb₂O₉(R=Y, Gd, La)：Eu³⁺(or Dy³⁺)
- Chinese Journal of Luminescence Vol. 15, Issue 1, Pages: 15-19(1994)
- 作者机构：
  
  1. 中国科学院福建物质结构研究所福州,350002
  2. 中国科学院长春应用化学研究所稀土化学与物理实验室长春,130022
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：12 April 1993，
  
  Published：28 February 1994
- 稿件说明：
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池利生, 苏锵. RVNb2O9(R=Y, Gd, La)：Eu3+(或Dy3+)的合成和光谱性质的研究[J]. 发光学报, 1994,15(1): 15-19

Chi Lisheng, Su Qiang. SYNTHESIS AND LUMINESCENCE PROPERTIES OF RVNb2O9(R=Y, Gd, La)：Eu3+(or Dy3+)[J]. Chinese Journal of Luminescence, 1994,15(1): 15-19
池利生, 苏锵. RVNb2O9(R=Y, Gd, La)：Eu3+(或Dy3+)的合成和光谱性质的研究[J]. 发光学报, 1994,15(1): 15-19 DOI：

Chi Lisheng, Su Qiang. SYNTHESIS AND LUMINESCENCE PROPERTIES OF RVNb2O9(R=Y, Gd, La)：Eu3+(or Dy3+)[J]. Chinese Journal of Luminescence, 1994,15(1): 15-19 DOI：

摘要

本文用R

(

La)

和高温固相反应法合成了复合钒铌酸盐RVMb

并以此为基质研究了Eu

和Dy

在其中的光谱性质.实验表明

在这三个化合物中均处于偏离反演对称中心的格位上

的荧光强度的红/横比(R/O)和Dy

的黄/蓝比(Y/B)均随R

的电荷半径比的减小而下降.同时还研究了Bi

和温度对Dy

的发射强度的影响.

Abstract

From the results of X-ray diffraction

it is certain that

VNb

(

La) can be obtained by solid state reaction with R

and Nb

.The luminescence properties of Eu

and Dy

VNb

(

La) have been systematically investigated. It is shown that host can sensitize Eu

and Dy

in these compounds. Eu

occupies site with deviation from inverse center in

VNb

(

La)

because the intensity of

transition of Eu

is stronger than that of

transition and the transition of

does not appear in these three matrixes(Fig. 1)

The red-to-orange intensity ratio (R/O) of Eu

and the yellow-to-blue intensity ratio (Y/B) of Dy

decrease with decreasing of the charge-to-radius ratio (

Z/r

) of R

(Table 1).The influence of Bi

and temperature on the emission intensity of Dy

were also investigated

acts as a "killer" for the emission of Dy

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