Effect of Compensation Ions and Sintering Temperature on the Luminescence Properties of SrTiO3：0.002Pr3+ Phosphor

HONG Zhang-lian; PENG Li-xia; ZHANG Peng-yue; ZHOU Shi-feng; WANG Min-quan

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Effect of Compensation Ions and Sintering Temperature on the Luminescence Properties of SrTiO₃：0.002Pr³⁺ Phosphor

更新时间：2020-08-11

- Effect of Compensation Ions and Sintering Temperature on the Luminescence Properties of SrTiO₃：0.002Pr³⁺ Phosphor
- Chinese Journal of Luminescence Vol. 26, Issue 4, Pages: 497-501(2005)
- 作者机构：
  
  1. 浙江大学, 材料科学与工程系
  2. 硅材料国家重点实验室,浙江杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：25 August 2004，
  
  Revised：2005-4-5，
  
  Published：20 July 2005
- 稿件说明：
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洪樟连, 彭丽霞, 张朋越, 周时凤, 王民权. 补偿离子掺杂与烧成温度对SrTiO3：0.002Pr3+材料的红色发光特性的影响[J]. 发光学报, 2005,26(4): 497-501

HONG Zhang-lian, PENG Li-xia, ZHANG Peng-yue, ZHOU Shi-feng, WANG Min-quan. Effect of Compensation Ions and Sintering Temperature on the Luminescence Properties of SrTiO3：0.002Pr3+ Phosphor[J]. Chinese Journal of Luminescence, 2005,26(4): 497-501
洪樟连, 彭丽霞, 张朋越, 周时凤, 王民权. 补偿离子掺杂与烧成温度对SrTiO3：0.002Pr3+材料的红色发光特性的影响[J]. 发光学报, 2005,26(4): 497-501 DOI：

HONG Zhang-lian, PENG Li-xia, ZHANG Peng-yue, ZHOU Shi-feng, WANG Min-quan. Effect of Compensation Ions and Sintering Temperature on the Luminescence Properties of SrTiO3：0.002Pr3+ Phosphor[J]. Chinese Journal of Luminescence, 2005,26(4): 497-501 DOI：

摘要

采用高温固相反应法合成SrTiO

:Pr

系发光材料

利用荧光光谱、XRD等分析手段

研究了工艺参数

如不同价态K、Ca和Al离子掺杂

以及1050~1300℃不同烧成温度对SrTiO

:Pr

体系发光性能的影响

以获得具有较好综合发光性能的SrTiO

:Pr

系发光材料。选择不同价态补偿离子掺杂是为了研究电荷补偿作用机制对该类材料发光性能的作用。结果表明:随着烧成温度的升高

磷光体发光强度先增加后减弱

在1150℃烧成的材料其发光强度最大。无补偿掺杂与K、Ca或Al离子掺杂的所有样品均发出源于Pr

的

跃迁的610nm红色光。在不同价态补偿离子掺杂样品中

以掺Al的SrTiO

:Pr

体系发光强度最好;其发光强度比无补偿离子掺杂SrTiO

:Pr

材料的发光强度提高10倍左右。另一方面

与Al离子具有类似的引入阴离子电荷缺陷的K离子掺杂材料的发光强度则基本没有变化

其发光强度与没有电荷补偿作用的无掺杂及Ca离子掺杂SrTiO

:Pr

材料相似。上述实验结果可从电荷缺陷及微观固溶结构两方面的联合作用机制进行解释。在引入电荷缺陷的掺杂体系中

只有在发光离子Pr

最近邻的Ti格位引入的电荷缺陷才能有效地起电荷补偿作用

达到增强发光强度的作用。研究结果给出了合理的制备工艺条件

并且提供了一种可有效提高发光强度的补偿离子掺杂的选择依据。

Abstract

The effect of preparation conditions such as sintering temperature on the luminescence properties of SrTiO

:Pr

phosphors doped by compensation ions with various valences were studied to obtain best luminescence property. The doping ions with various valences were selected to verify the charge compensation effect on the luminescence intensity as K and Al seem to have similar charge compensation effect. PL spectra were measured to analyze the effect of preparation parameters

such as doping ions of K

Al and sintering (temperature

) on the luminescence properties of SrTiO

:Pr

phosphors. And XRD measurements were carried out to verify the crystal structure of prepared SrTiO

:Pr

phosphors. The results revealed that all samples emit red light at 610 nm originating from

transition of Pr

(ions.) The luminescence intensity varies with sintering temperature

while the samples sintered at 1 150℃ have the best luminescence intensity. Among K

Ca and Al doped samples

only the Al-doped samples have the (obvious) enhanced luminescence intensity

the strongest luminescence intensity was about 10 times as that of pure SrTiO

:Pr

phosphor without compensation doping. On the other hand

phosphor doped with K ions

which likely has similar charge compensation effect as that doped with Al ions

has little effect on the improvement of luminescence intensity. Contrary

it has similar intensity as that of either pure SrTiO

:Pr

phosphors or Ca-doped phosphors which are believed to have not such charge compensation effect. Above result about the effect of various ions doping on luminescence properties could be explained by combination of charge compensation effect and substitution structure effect. The charge compensation effect is effective only when the doping ions Al

is substitute for the Ti ions which is the nearest neighbor ion to the (luminescence) ions of Pr

. Present study shows an optimal preparation condition and proposes a method to choose effective charge compensation ion for SrTiO

:Pr

phosphors with best luminescence intensity.

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