Acta Optica Sinica, Volume. 29, Issue 1, 277(2009)
Optical Properties of Cu-Co Alloy Nanowire Arrays in Porous Alumina Template
Highly ordered porous anodic aluminum oxide (PAA) membranes were prepared by electrochemical method. By alternating current electrodepositing, Cu-Co alloy nanowire arrays were fabricated in the micro column-shaped holes of porous alumina template in a mixed electrolyte of CuSO4 and CoSO4. The morphology and microstructures of PAA and nanowire arrays were characterized by XRD and SEM. The results show that the surface of Cu-Co nanowire arrays is uniform and regular with a preferred crystal face (111) during growing. And the transmission and polarization spectrum indicate that the sample has good transmittance and extinction ratio. Cu-Co alloy can change some characteristics of the simple metal, and for example, CuCo/PAA has better extinction ratio (30 dB) in near infrared waveband than Cu/Al2O3 (17 dB).
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Zheng Mengmeng, Wu Fuquan, Liu Zaiguo, Zhang Lichun, Li Qingshan, Tian Jianxiang. Optical Properties of Cu-Co Alloy Nanowire Arrays in Porous Alumina Template[J]. Acta Optica Sinica, 2009, 29(1): 277