Sol-gel synthesis, structural and luminescence properties of MT-doped SiO2/Zn2SiO4 nanocomposites

被引：17
|
作者：
El Ghoul, J. [1 ,2 ]
Omri, K. [1 ]
Gomez-Lopera, S. A. [3 ]
El Mir, L. [1 ,2 ]
机构：
[1] Fac Sci Gabes, Lab Phys Mat & Nanomat Appliquee Environm, Gabes 6072, Tunisia
[2] Al Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Phys, Riyadh 11623, Saudi Arabia
[3] Univ Politecn Cartagena UPCT, Dep Fis Aplicada, Cartagena 30203, Spain
来源：
OPTICAL MATERIALS | 2014年 / 36卷 / 06期
关键词：
Zn2SiO4; Optical properties; Nanostructures; Photoluminescence; Sol-gel; ZINC-OXIDE AEROGEL; OPTICAL-PROPERTIES; POROUS SILICON; THIN-FILMS; PHOSPHORS; ZN2SIO4; COMPOSITE; NANOPARTICLES; COMPLEXES; GLASSES;
D O I：
10.1016/j.optmat.2014.01.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The sol-gel method is used for the preparation of undoped, Mn and V-doped Zn2SiO4 particles embedded in SiO2 host matrix. The phase purity and morphological features were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM) investigations. The obtained SiO2/Zn2SiO4 nanocomposite, exhibits a strong photoluminescence (PL) band centered at around 760 nm, attributed to energy transfer occurs from Zn2SiO4 particles to NBOHs interfaces defects. In addition, the PL spectrum for the SiO2/Zn2SiO4:Mn nanocomposite showed that a dominant peak at 525 nm appeared, which originated from the T-4(1)-(6)A(1) transitions of Mn2+ ions. In the case of SiO2/Zn2SiO4:V, the PL reveals a band centered at about 540 nm attributed to the effect of the V5+ in the host matrix nanocomposite. Published by Elsevier B.V.
引用
收藏
页码：1034 / 1039
页数：6
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