Pure Near-Infrared Up-Conversion Emission of Tm3+ Sensitized by Ni2+ in MgGa2O4

被引：0
|
作者：
Liu, Siwei [1 ]
Yang, Xiaoliang [1 ]
Xiao, Siguo [1 ]
机构：
[1] Xiangtan Univ, Sch Phys & Optoelect, Xiangtan 411105, Hunan, Peoples R China
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2024年 / 128卷 / 46期
关键词：
NANOPARTICLES; LUMINESCENCE; ENHANCEMENT; LANTHANIDE; IONS; NIR;
D O I：
10.1021/acs.jpcc.4c05566
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：
A series of Ni2+/Tm3+ codoped MgGa2O4 phosphors were prepared using a conventional high-temperature solid-state method. A strong NIR up-conversion emission around 801 nm is exhibited in the Ni2+/Tm3+ codoped MgGa2O4 phosphor under excitation of 1064 nm, with a marked advantage over a blue up-conversion emission near 476 nm, indicating that the Ni2+/Tm3+ codoped MgGa2O4 is an excellent pure NIR to NIR up-conversion phosphor. The NIR up-conversion intensity of the Ni2+/Tm3+ codoped MgGa2O4 can be enhanced by approximately 200 times compared to the Tm3+ single-doped one. It is proven that the energy transfer from Ni2+ to Tm3+ caused by radiative reabsorption performs the up-conversion. The results suggest that the newly developed up-conversion material in the present work may be considered as a candidate for applications such as bioimaging, efficiency enhancement of solar cells, and infrared detection.
引用
收藏
页码：19519 / 19528
页数：10
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