Energy transfer from SnO2 host to Eu3+ ions and photoluminescence quenching of SnO2:Eu3+ nanocrystals

被引：4

作者：

Van, Tuan Pham ^{[1
]}

Hoai, Thu Luong ^{[1
]}

Ngoc, Khiem Tran ^{[1
]}

机构：

[1] Hanoi Univ Sci & Technol, Sch Mat Sci & Engn, 1 Dai Co Viet, Hanoi, Vietnam

来源：

OPTICAL MATERIALS | 2024年 / 147卷

关键词：

SnO2:Eu3+ nanoparticles; Hydrothermal method; Photoluminescence; Energy transfer; LUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; TEMPERATURE; ORANGE; SILICA;

D O I：

10.1016/j.optmat.2023.114696

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SnO2:Eu3+ nanoparticles were prepared by hydrothermal method. The crystal structure, size, phase composition, and morphology of the materials were investigated by X-ray diffraction measurements, scanning electron microscopy, Raman scattering spectroscopy. The absorption and optical properties of the materials were studied by UV-vis absorption spectroscopy, photoluminescence excitation spectroscopy, and photoluminescence spectroscopy. Results showed that the SnO2:Eu3+ nanoparticles had a tetragonal rutile crystal structure and were about 5-15 nm in size. They were also smaller than pure SnO2. When doping Eu3+ into SnO2, the crystal size of SnO2:Eu3+ nanoparticles decreased, the defects increased, and the crystallinity decreased. The SnO2:Eu3+ samples emitted in the emission region related to the SnO2 host and the emission peaks of the Eu3+ ion impurity. Moreover, energy transfer occurred from the SnO2 host to Eu3+ ions. The photoluminescence spectra of SnO2:Eu3+ nanoparticles with indirect and direct excitation were further studied. The influences of Eu3+ concentration on the structure, morphology, and optical properties of SnO2:Eu3+ nanoparticles were investigated in detail.

引用

页数：10

共 38 条

[1] Simple wet chemical synthesis and photoluminescence characterization of SnO2:Eu3+ reddish-orange phosphor [J].