Record number :
1000375
Title of article :
Fabrication of Cu nanowires along atomic step edge lines on Si(1 1 1) substrates
Author/Authors :
Norio Tokuda، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Pages :
4
From page :
528
To page :
531
Abstract :
We have succeeded in the fabrication of high-aspect-ratio (length to width) Cu nanowires along atomic step edge lines on Si(1 1 1) substrates. The fabrication procedure consisted of two wet process steps: (1) flattening of the surface roughness to an atomic level by immersing Si(1 1 1) wafers in ultralow-dissolved-oxygen water (LOW), and (2) Cu nanowire formation by immersion in LOWcontaining 10 ppm Cu ions for 1 s at room temperature. On the other hand, no Cu nanowires were formed on the Si(1 1 1) surfaces when the dissolved oxygen content was 8 ppm in alkaline solution during the Cu deposition stage, even though the Si etching with OH was enhanced. We consider that it is due to the decrease in reduced Cu atom density by the existence of the dissolved oxygen as superoxide anion radicals.
Keywords :
SI , Surface , Cu , nanowire , AFM , Electroless deposition
Journal title :
Applied Surface Science
Journal title :
Applied Surface Science
Serial Year :
2004
Link To Document :
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