Preparation and Optical Properties of The Orthorhombic Gd2(MoO4)3∶Dy3+ Phosphor for White LEDs

YUAN Tao-li; XIA Wan-wan; YU Hong-zhu; ZHANG Cheng-shan; ZHANG Fang-cheng; DUAN Pei-hua; W

doi:10.3788/fgxb20123309.0929

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Preparation and Optical Properties of The Orthorhombic Gd₂(MoO₄)₃∶Dy³⁺ Phosphor for White LEDs

更新时间：2020-08-12

- Preparation and Optical Properties of The Orthorhombic Gd₂(MoO₄)₃∶Dy³⁺ Phosphor for White LEDs
- Chinese Journal of Luminescence Vol. 33, Issue 9, Pages: 929-933(2012)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 吉林大学物理学院超硬材料国家重点实验室,吉林长春,130012
  3. 陕西科技大学电气与信息工程学院,陕西西安,710021
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123309.0929
  CLC： O482.31
- Received：24 June 2012，
  
  Revised：17 July 2012，
  
  Published：10 September 2012
- 稿件说明：
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袁桃利, 夏婉婉, 于宏柱, 张成山, 张方程, 段佩华, 王晓峰, 付作岭. 白光LED用正交相Gd2(MoO4)3∶Dy3+ 荧光粉的制备与发光性能[J]. 发光学报, 2012,33(9): 929-933

YUAN Tao-li, XIA Wan-wan, YU Hong-zhu, ZHANG Cheng-shan, ZHANG Fang-cheng, DUAN Pei-hua, WANG Xiao-feng, FU Zuo-ling. Preparation and Optical Properties of The Orthorhombic Gd2(MoO4)3∶Dy3+ Phosphor for White LEDs[J]. Chinese Journal of Luminescence, 2012,33(9): 929-933
袁桃利, 夏婉婉, 于宏柱, 张成山, 张方程, 段佩华, 王晓峰, 付作岭. 白光LED用正交相Gd2(MoO4)3∶Dy3+ 荧光粉的制备与发光性能[J]. 发光学报, 2012,33(9): 929-933 DOI： 10.3788/fgxb20123309.0929.

YUAN Tao-li, XIA Wan-wan, YU Hong-zhu, ZHANG Cheng-shan, ZHANG Fang-cheng, DUAN Pei-hua, WANG Xiao-feng, FU Zuo-ling. Preparation and Optical Properties of The Orthorhombic Gd2(MoO4)3∶Dy3+ Phosphor for White LEDs[J]. Chinese Journal of Luminescence, 2012,33(9): 929-933 DOI： 10.3788/fgxb20123309.0929.

摘要

利用水热法并经过退火煅烧制备了白光LED用正交相Gd

(MoO

)

∶Dy

荧光粉

用X射线衍射仪和扫描电子显微镜对样品的结构和微观形貌进行表征

利用荧光光谱对其发光性质进行了研究。在389 nm的紫外光激发下

9/2

→

15/2

跃迁产生的蓝光发射和

9/2

→

13/2

跃迁产生的黄光发射最强。发光光谱分析结果表明

的最佳掺杂量为

=16%。此时荧光粉最为接近白光

其色坐标和色温分别为 (0.326

0.336) 和6 389

是一种很有潜力的白光LED用荧光粉。

Abstract

The orthorhombic Gd

(MoO

)

∶Dy

were successfully synthesized by hydrothermal process with a subsequent annealing treatment. The crystallization and microstructures of the samples were characterized by powder X-ray diffraction (XRD) and scanning electron micrograph (SEM). The luminescent properties of the prepared samples were investigated by the excitation and emission spectra. Under 389 nm excitation

the emissions centered at 487 nm and 576 nm were attributed to the transitions of

9/2

15/2

and

9/2

13/2

respectively. The emission spectra indicated that the optimal doping content of Dy

was 16％. Especially

the orthorhombic Gd

1.84

(MoO

)

∶Dy

0.16

exhibits CIE coordinates of (0.326

0.336) with a color temperature of 6 389 K

which is closest to the nature white light. Thus it can be considered to be a potential candidate for white-LEDs.

关键词

Keywords

references

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