Preparation and characterization of silica-coated ZnSe nanowires with thermal stability and photoluminescence

被引：2

作者：

Xiong, Shenglin ^{[1
,2
]}

Xi, Baojuan ^{[1
,2
]}

Wang, Weizhi ^{[1
,2
]}

Zhou, Hongyang ^{[1
,2
]}

Zhang, Shuyuan ^{[1
,2
]}

Qian, Yitai ^{[1
,2
]}

机构：

[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2007年 / 7卷 / 12期

关键词：

ZnSe nanowires; sol-gel synthesis;

D O I：

10.1166/jnn.2007.860

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Silica-coated ZnSe nanowires with well-controlled the thickness of sheath in the range of 10-60 nm have been synthesized through a simple sol-gel process. The thickness of silica coating could be controlled through altering reaction parameters such as volume ratio of TEOS and ammonia. XRD, high-resolution TEM, X-ray photoelectron spectroscopy (XPS), Raman spectra, thermogravimetric analysis (TGA), and photoluminescence (PL) spectra were used to characterize the core/sheath nanostructures. Room-temperature PL measurements indicate these silica-coated ZnSe nanowires remarkably improve the PL intensity. Meanwhile, the thermal stability has been enhanced greatly, which is useful for their potential applications in advanced semiconductor devices.

引用

页码：4494 / 4500

页数：7

共 27 条

[1] Semiconductor nanocrystals as fluorescent biological labels [J].