Tunable emission, energy transfer, and charge compensation in the CaSb2O6:Eu3+, Bi3+ phosphor

被引：22
作者：
Cao, Renping [1 ]
Fu, Ting [1 ]
Cao, Yunling [1 ]
Jiang, Shenhua [2 ]
Gou, Qingdong [1 ]
Chen, Zhiquan [1 ]
Liu, Pan [3 ]
机构：
[1] Jinggangshan Univ, Coll Math & Phys, Jian 343009, Jiangxi, Peoples R China
[2] Jiujiang Univ, Coll Pharmacol & Life Sci, Jiujiang 332000, Peoples R China
[3] Jinggangshan Univ, Sci Res Off, Jian 343009, Jiangxi, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 04期
基金：
中国国家自然科学基金;
关键词：
LUMINESCENCE PROPERTIES; TB3+; EU2+; CE3+; EU3+; CA; SR;
D O I：
10.1007/s10854-015-4186-6
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Novel CaSb2O6:Eu3+, Bi3+ phosphor is synthesized by solid-state reaction method in air. Their crystal structures are investigated. Luminescence properties of CaSb2O6:Eu3+, CaSb2O6:Bi3+, and CaSb2O6:Eu3+, Bi3+ phosphors are compared, analyzed and explained, respectively. Tunable emission of CaSb2O6:Eu3+, Bi3+ phosphor with excitation 298 nm can be observed by changing Eu3+ or Bi3+ concentration. Energy transfer (ET) and charge compensation in CaSb2O6:Eu3+, Bi3+ phosphor are observed and analyzed via its luminescence properties. Lifetimes of CaSb2O6:5 %Eu3+, yBi(3+) phosphor (0.5 a parts per thousand currency sign y a parts per thousand currency sign 5 mol%) are investigated, which further confirm that ET process can be formed between Eu3+ ion and Bi3+ ion. The luminous mechanism is explained via the energy level diagrams of Bi3+ and Eu3+ ions. The emission properties indicate that CaSb2O6:Eu3+, Bi3+ phosphor has a potential application for white LEDs based on near UV (similar to 394 nm) LED chip.
引用
收藏
页码：3514 / 3519
页数：6
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