期刊
NANOSCALE RESEARCH LETTERS
卷 6, 期 -, 页码 -出版社
SPRINGER
DOI: 10.1186/1556-276X-6-467
关键词
Cu nanowire; template-assisted electrodeposition; length uniformity; low-temperature electrodeposition; nucleation; crystallinity
资金
- NRF
- MEST [2011-0000252, 2011-0017673]
- National Research Foundation of Korea [2011-0017673, 2009-0081158] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this work, we report highly uniform growth of template-assisted electrodeposited copper nanowires on a large area by lowering the deposition temperature down to subzero centigrade. Even with highly disordered commercial porous anodic aluminum oxide template and conventional potentiostatic electrodeposition, length uniformity over 95% can be achieved when the deposition temperature is lowered down to -2.4 degrees C. Decreased diffusion coefficient and ion concentration gradient due to the lowered deposition temperature effectively reduces ion diffusion rate, thereby favors uniform nanowire growth. Moreover, by varying the deposition temperature, we show that also the pore nucleation and the crystallinity can be controlled.
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