Preparation and Luminescent Properties of Green NaCaPO4：Tb3+ Phosphor

YANG Zhi-ping; WANG Shao-li; YANG Guang-wei; TIAN Jing; LI Pan-lai; LI Xu

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Preparation and Luminescent Properties of Green NaCaPO₄：Tb³⁺ Phosphor

更新时间：2020-08-11

- Preparation and Luminescent Properties of Green NaCaPO₄：Tb³⁺ Phosphor
- Chinese Journal of Luminescence Vol. 29, Issue 1, Pages: 81-84(2008)
- 作者机构：
  
  1. 河北大学电子信息工程学院,河北保定,071002
  2. 河北大学物理科学与技术学院发光与显示研究所, 河北, 保定, 071002
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：25 August 2007，
  
  Revised：24 November 2007，
  
  Published：20 January 2008
- 稿件说明：
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杨志平, 王少丽, 杨广伟, 田晶, 李盼来, 李旭. 绿色荧光粉NaCaPO4：Tb3+的制备与发光特性[J]. 发光学报, 2008,29(1): 81-84

YANG Zhi-ping, WANG Shao-li, YANG Guang-wei, TIAN Jing, LI Pan-lai, LI Xu. Preparation and Luminescent Properties of Green NaCaPO4：Tb3+ Phosphor[J]. Chinese Journal of Luminescence, 2008,29(1): 81-84
杨志平, 王少丽, 杨广伟, 田晶, 李盼来, 李旭. 绿色荧光粉NaCaPO4：Tb3+的制备与发光特性[J]. 发光学报, 2008,29(1): 81-84 DOI：

YANG Zhi-ping, WANG Shao-li, YANG Guang-wei, TIAN Jing, LI Pan-lai, LI Xu. Preparation and Luminescent Properties of Green NaCaPO4：Tb3+ Phosphor[J]. Chinese Journal of Luminescence, 2008,29(1): 81-84 DOI：

摘要

采用高温固相法合成了适用于UVLED芯片激发的NaCaPO

:Tb

绿色荧光粉并对其发光性质进行了研究。该荧光粉的发射峰位于418

440

492

545

586

622nm

分别对应Tb

的

、

能级跃迁。其中位于492

545nm的发射峰最强

样品发射很好的绿光。主要激发峰位于380~400nm之间

属于4f4f电子跃迁吸收

与UVLED芯片的发射相匹配。考察了Tb

掺杂浓度和Li

和K

作为电荷补偿剂对样品发光性能的影响:Tb

的最佳掺杂浓度为10%

以Li

的补偿效果最好。NaCaPO

:Tb

是一种适用于白光LED的绿色荧光材料。

Abstract

The NaCaPO

:Tb

green phosphor applicable for UVLED chip was synthesized by the general high temperature solid-state reaction and its luminescence properties were investigated. It shows six major emission peaks locating at 420

442

492

545

584 and 620 nm

which correspond to the

and

typical transition of Tb

respectively. The most intense peaks located at 492 nm and 545 nm and the phosphor shows excellent green emission. The excitation spectra contain a weak broad band extending from 200 to 280 nm and two peaks at 330~390 nm

which correspond well with the emission of UVLED (350~410 nm). The effects of doped-Tb

concentration and charge-compensating of Li

and K

on the emission intensity were also investigated. It shows that the optimum doped-Tb

concentration is 10% and Li

gives the best improvement to enhance the intensity of the emission. The NaCaPO

:Tb

is a potential green-emitting phosphor for white light emitting diode (W-LED).

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