Structural and optical properties of La2O3:Ho3+ and La(OH)3:Ho3+ crystalline particles

被引：14

作者：

Ajmal, Muhammad ^{[1
]}

Ali, Tauseef ^{[2
]}

Khan, Mohammad Adil ^{[1
]}

Ahmad, Safeer ^{[1
]}

Mian, Shabeer Ahmad ^{[2
]}

Waheed, Abdul ^{[1
]}

Ali, Sardar ^{[1
]}

机构：

[1] Univ Peshawar, Dept Phys, Islamia Coll, Peshawar, Pakistan

[2] Univ Peshawar, Dept Phys, Peshawar, Pakistan

来源：

MATERIALS TODAY-PROCEEDINGS | 2017年 / 4卷 / 03期

关键词：

La2O3; La(OH)(3); Ho-doped; Luminescence; LUMINESCENT PROPERTIES; Y2O3; PHOSPHORS; MICROSPHERES; DY3+; EU3+;

D O I：

10.1016/j.matpr.2017.04.093

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ho-doped La2O3 phosphor particles were synthesized by simple and environmental friendly Urea Homogeneous Precipitation (UHP) technique. Structural and optical properties of the prepared particles were investigated by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy and photoluminescence (PL) spectroscopy. XRD characterizations showed the formation of pure hexagonal La2O3 phase and its recrystallization into La(OH)(3) phase in open atmosphere. The luminescence behavior in both the structures was investigated and compared at three different Ho3+ doping concentration. Under 232 nm excitation source, the intense emission for both structures was observed at 548 nm. The intensity of emission peaks and corresponding luminescence in La(OH)(3) was observed to be lower as compared to the luminescence from La2O3 structure. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：4900 / 4905

页数：6

共 19 条

[1] Facile fabrication and luminescent properties enhancement of bimodal Y2O3:Eu3+ particles by simultaneous Gd3+ codoping [J].