SnO2-Core/SiOx-Shell Coaxial Whiskers with a Needle-Like Morphology

被引：9

作者：

Kim, Hyoun Woo ^{[1
]}

Kim, Hyo Sung ^{[1
]}

Kebede, Mesfin Abayneh ^{[1
]}

Na, Han Gil ^{[1
]}

Yang, Ju Chan ^{[1
]}

机构：

[1] Inha Univ, Sch Mat Sci & Engn, Inchon 402751, South Korea

来源：

METALS AND MATERIALS INTERNATIONAL | 2010年 / 16卷 / 01期

关键词：

nanostructured materials; chemical synthesis; sputtering; optical properties; transmission electron microscopy (TEM); TIN OXIDE; NANOWIRE HETEROSTRUCTURES; ZNO NANORODS; LARGE-SCALE; CORE-SHELL; PHOTOLUMINESCENCE; NANOTUBES; GROWTH; FILMS; RAMAN;

D O I：

10.1007/s12540-010-0077-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Needle-shaped structures of tin oxide (SnO2) were coated with a shell layer of SiOx via a sputtering method. The diameters of the SiOx-coated structures gradually became thinner, leading to the formation of sharp tips. The whiskers consisted of a crystalline SnO2 core surrounded by an amorphous SiOx shell. The photoluminescence (PL) spectrum with a Gaussian fitting exhibited yellow-green and orange light emission bands, and the overall shape and intensity of the PL spectrum were not changed by the SiO(x)coating. The results of this study suggest that sputtering can be employed to achieve the layered growth of shell layers on a variety of nanostructures.

引用

页码：77 / 81

页数：5

共 46 条

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