Synthesis of Gd2O3:Eu3+ nanocrystallites emmbeded in SiO2 using polyvinylpyrrolidone (pvp) by sol-gel process

被引：0

作者：

Garcia Murillo, A. ^{[1
]}

Carrillo Romo, F. ^{[1
]}

Garcia Hernandez, M. ^{[1
]}

Badillo, J. C. ^{[2
]}

de la Rosa, E. ^{[3
]}

Lopez-Luke, T. ^{[3
]}

机构：

[1] CIITEC, Inst Politecn Nacl, Mexico City 02250, DF, Mexico

[2] Inst Politecn Nacl, CICATA Unidad Altamira, Altamira 89600, Tamps, Mexico

[3] Ctr Invest Opt, Leon 37150, Gto, Mexico

来源：

REVISTA MEXICANA DE FISICA | 2011年 / 57卷 / 02期

关键词：

Gadolinium oxide; europium; silica; PVP; sol-gel; OPTICAL-PROPERTIES;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Europium doped gadolinium oxide were synthesized by sol-gel method. SiO2 matrix was prepared by sol-gel method using TEOS, ammonium hydroxide and water as precursors. Both sols were mixed in different molar ratio in order to obtain Gd2O3:Eu3+/SiO2 stable sol. We report the structure and morphology of Gd2O3:Eu3+ (2.5% mol)/SiO2 with PVP (average molecular weight 1300 000) analyzed using DRX and SEM. The XRD pattern of Gd2O3:Eu3+/SiO2 powders heat treated at 700 degrees C for 10 min revealed crystalline cubic phase. SEM analyses showed significant changes in the morphology which depends on the concentration ratio G(2)O(3):SiO2. Luminescent properties of glass ceramics (Gd:Si=8:1) showed intense emission bands in comparison with bare Gd2O3:Eu3+ powders. This result is promising to the elaboration of thick films with optical properties.

引用

页码：57 / 60

页数：4

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