Indium oxide and europium/dysprosium doped indium oxide nanoparticles: Sonochemical synthesis, characterization, and photoluminescence studies

被引：51

作者：

Dutta, Dimple P. ^{[1
]}

Sudarsan, V. ^{[1
]}

Srinivasu, P. ^{[2
]}

Vinu, A. ^{[2
]}

Tyagi, A. K. ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Div Chem, Bombay 400085, Maharashtra, India

[2] Natl Inst Mat Sci, Nano Ion Mat Grp, Tsukuba, Ibaraki 3050044, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 17期

关键词：

D O I：

10.1021/jp800576y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Indium oxide and europium/dysprosium doped indium oxide nanoparticles were prepared using a sonochemical technique where indium ethoxide was used as a precursor. The obtained indium oxide nanoparticles were characterized using powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area electron diffraction (SAED) techniques. The band gaps of the particles were estimated using diffuse reflectance spectroscopy. With change in size of particles from 8 to 14 nm, the band gap varied between 4.11 and 3.79 eV. The photoluminescence (PL) spectra of In2O3 nanoparticles showed peaks in visible region characteristic of shallow traps present within the nanoparticles. Weak luminescence was observed in europium-doped indium oxide nanoparticles,.

引用

页码：6781 / 6785

页数：5

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