Optical characteristics and luminescence of amorphous BaTiO3 thin films doped with Eu3+

被引：6
|
作者：
Lee, K. T. [1 ]
Osman, R. A. M. [1 ]
Poopalan, P. [1 ]
机构：
[1] Univ Malaysia Perlis, Fac Elect Engn Technol, Arau 02600, Perlis, Malaysia
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2021年 / 553卷
关键词：
Photoluminescence; Lanthanides; Amorphous; Barium titanate; Thin film; Phosphor; RED-EMITTING PHOSPHOR; PHOTOLUMINESCENCE PROPERTIES; ENERGY-TRANSFER; GLASSES; FLUORESCENCE; SPECTRA;
D O I：
10.1016/j.jnoncrysol.2020.120515
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Sol-gel spin coated BaTiO3:Eu3+ thin films on fused silica substrate were thermally annealed between 400 degrees C and 800 degrees C. The multilayer films were doped with Eu3+ which was limited to 10 mol % doping concentration. Standard physical and optical characterizations were performed in addition to excitation-emission and UVPL spectroscopy. The films were amorphous at temperatures below 600 degrees C and exhibited stronger luminescence at 613.0 nm (D-5(0) -> F-7(2)) than crystalline films. Optical energy band-gap ranged from 3.825 eV (crystalline) to 4.325 eV (amorphous) and the amorphous films' CIE showed excellent red coordinates whilst red/orange (R/O) asymmetry ratio shows tailored emission color is possible.
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页数：8
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