کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1670361 | 1008899 | 2010 | 4 صفحه PDF | دانلود رایگان |

Silicon nanoporous pillar array (Si-NPA) is prepared by hydrothermally etching method. The copper/silicon nanocomposite thin film (Cu/Si-NPA) is obtained utilizing a reductive deposition method where Si-NPA acts both as a reducing agent and as a substrate. Microstructural analysis indicates that Si-NPA is composed of large quantities of well-separated, quasi-identical silicon pillars which are uniform and perpendicular to the surface. The pillar surface is nanoporous and the pore wall is composed of silicon nanocrystallites with a size about 4 nm. Cu/Si-NPA inherits the morphological characteristic of Si-NPA. The density of the Cu nanoparticles changes alternatively with the geometrical sites of Si-NPA, which leads to the formation of crater-like structures. These results indicate that Si-NPA might be used as an ideal template for synthesizing metal/silicon nanocomposite systems.
Journal: Thin Solid Films - Volume 518, Issue 23, 30 September 2010, Pages 6866–6869