title: Over 95% of large-scale length uniformity in template-assisted electrodeposited nanowires by subzero-temperature electrodeposition.
abstract: 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°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.
authors.affiliation: Department of Mechanical Engineering, Yonsei University, Seoul, 120-749, Korea. hhcho@yonsei.ac.kr.
authors.forename: Sangwoo
authors.initials: S
authors.lastname: Shin
authors.forename: Bo Hyun
authors.initials: BH
authors.lastname: Kong
authors.forename: Beom Seok
authors.initials: BS
authors.lastname: Kim
authors.forename: Kyung Min
authors.initials: KM
authors.lastname: Kim
authors.forename: Hyung Koun
authors.initials: HK
authors.lastname: Cho
authors.forename: Hyung Hee
authors.initials: HH
authors.lastname: Cho