Mn DOPED SnO2 PREPARED BY A SOL-GEL METHOD

被引：0

作者：

Ungureanu, Ana-Maria ^{[1
]}

Jitaru, Ioana ^{[1
]}

Gosnea, Florinela ^{[2
]}

机构：

[1] Univ Politehn Bucuresti, Dept Inorgan Chem Phys Chem & Electrochem, Bucharest, Romania

[2] Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Bucharest, Romania

来源：

UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE | 2013年 / 75卷 / 03期

关键词：

tin dioxide; DMS; sol-gel; ethylene glycol;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mn doped tin dioxide nanoparticles (with 2, 4, 6% at. Mn) for possible diluted magnetic semiconductors (DMS) applications were successfully obtained through a facile ethylene glycol assisted sol-gel process. All samples were characterized through XRD and TG/DSC analysis, UV-VIS and FTIR spectroscopy. TG/DSC analysis results suggest an optimal thermal treatment temperature of 500 degrees C. XRD results confirm the formation of Mn doped tin dioxide nanocrystallites in accordance with thermogravimetric results. For all the samples no secondary phases were observed, indicating a good Mn integration in the tin dioxide lattice. Crystallite sizes were calculated with Scherrer's equation; values of 6 nm were obtained. Band gap energies were estimated with Tauc method and compared with the value of an undoped sample, showing a decrease in the Eg value that emphasizes the increase in dopant concentration.

引用

页码：43 / 52

页数：10

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