Template assisted synthesis of europium sulfide nanotubes

被引：6
|
作者：
Harrison, Melissa A. [2 ]
Somarajan, Suseela [1 ]
Mahajan, Sameer V. [2 ]
Koktysh, Dmitry S. [3 ]
van Benthem, Klaus [4 ]
Dickerson, James H. [1 ]
机构：
[1] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA
[2] Vanderbilt Univ, Interdisciplinary Grad Program Mat Sci, Nashville, TN 37235 USA
[3] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA
[4] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA
来源：
MATERIALS LETTERS | 2011年 / 65卷 / 03期
基金：
美国国家科学基金会;
关键词：
Europium chalcogenide; Inorganic nanotubes; Anisotropic structures; Lattice deformation; Lanthanide; MAGNETIC-PROPERTIES; MACROSCOPIC FERRIMAGNETS; EUS NANOCRYSTALS; CHALCOGENIDES; NANOPARTICLES;
D O I：
10.1016/j.matlet.2010.10.058
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the template assisted synthesis of europium sulfide (EuS) nanotubes. These structures were fabricated by thermolysis of a single source precursor that was infused into porous alumina membranes. TEM and STEM analysis confirmed the formation of EuS nanotubes, while X-ray diffraction and selected area electron diffraction analysis probed their crystallinity. Room temperature optical spectroscopy identified an energy-band blue-shift in the absorption spectra into the UV, compared to bulk EuS. Interestingly, no such shift was observed in the photoluminescence. We attribute these changes to quantum confinement effects on the photoexcited charge carriers within the nanotubes' walls and strain-induced lattice deformations. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：420 / 423
页数：4
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