Investigation of luminescence properties and energy transfer mechanism in

被引：1
|
作者：
Liu, Hongbo [1 ,2 ]
Wang, Xu [1 ,2 ]
Deng, Chaoyong [1 ,2 ,3 ]
Zhang, Min [1 ,2 ]
机构：
[1] Guizhou Univ, Coll Big Data & Informat Engn, Guiyang 550025, Peoples R China
[2] Key Lab Elect Funct Composite Mat Guizhou Prov, Guiyang, Peoples R China
[3] Guizhou Acad Sci, Guiyang 550001, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2024年 / 1009卷
基金：
中国国家自然科学基金;
关键词：
BaY; 2; ZnO; 5; Phosphor; Energy transfer; WLED; QUANTUM YIELD; EU3+; PHOSPHOR; DY3+; SM3+; TEMPERATURE; SPECTRA; PHASE; GD;
D O I：
10.1016/j.jallcom.2024.176744
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this investigation, the photoluminescence properties, energy transfer phenomenon of BaY2ZnO5:Sm3+/Eu3+ doped/co-doped phosphor are reported and synthesized by high temperature solid state reaction method. The crystal structure, micromorphology, optical diffuse reflectance and photoluminescence properties of the samples were studied. The results show that concentration quenching phenomenon is found. With the increase of Eu3+ ion concentration, the emission peaks of Sm3+ gradually decrease, indicating that energy transfer between Sm3+ and Eu3+. The optimal concentrations are 0.05 mol and 0.2 mol for single doping Sm3+ and Eu3+, respectively. The energy transfer efficiency is calculated to be 78.47-95.19 %. The BaY2ZnO5 phosphors have potential application value in the fields of white light LEDs and anti-counterfeiting.
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页数：14
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