Improving nucleation in the fabrication of high-quality 3D macro-porous copper film through the surface-modification of a polystyrene colloid-assembled template
Lan Ding(蓝鼎), Wang Yu-Ren(王育人)†, Yu Yong(于泳), Ma Wen-Jie(马文杰), and Li Cheng(李程)
National Microgravity Laboratory, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080, China
Abstract A new approach is developed to the fabrication of high-quality three-dimensional macro-porous copper films. A highly-ordered macroporous copper film is successfully produced on a polystyrene sphere (PS) template that has been modified by sodium dodecyl sulfate (SDS). It is shown that this procedure can change a hydrophobic surface of PS template into a hydrophilic surface. The present study is devoted to the influence of the electrolyte solution transport on the nucleation process. It is demonstrated that the permeability of the electrolyte solution in the nanochannels of the PS template plays an important role in the chemical electrodeposition of high-quality macroporous copper film. The permeability is drastically enhanced in our experiment through the surface modification of the PS templates. The method could be used to homogeneously produce a large number of nucleations on a substrate, which is a key factor for the fabrication of the high-quality macroporous copper film.
Received: 26 April 2006
Revised: 24 August 2006
Accepted manuscript online:
Fund: Project supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No KJCX2-SW-L05).
Cite this article:
Lan Ding(蓝鼎), Wang Yu-Ren(王育人), Yu Yong(于泳), Ma Wen-Jie(马文杰), and Li Cheng(李程) Improving nucleation in the fabrication of high-quality 3D macro-porous copper film through the surface-modification of a polystyrene colloid-assembled template 2007 Chinese Physics 16 468
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