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Single-Crystalline Silver Nanowire Arrays Directly Synthesized on Substrates by Template Chemical Wetting

27 Pages Posted: 8 Aug 2019 First Look: Accepted

See all articles by Chenghao Zhang

Chenghao Zhang

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

Chun Li

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

Xiaoqing Si

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

Zongjing He

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

Junlei Qi

Wuhan University of Technology - Center for Smart Materials and Device Integration

Jicai Feng

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

Jian Cao

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

Abstract

Silver (Ag) nanowire arrays have attracted extensive research attention for its outstanding electrochemical detection sensitivity and optical properties. The most frequently used technology for fabricating Ag nanowire arrays is electrodeposition within the pores of anodic aluminum oxide (AAO) templates. In this paper, single-crystalline Ag nanowire arrays were grown by the capillary wetting of the molten Ag in the nanopores of AAO templates at the temperature of 970°C. In order to improve the infiltrating height of molten Ag in the capillaries of AAO templates, copper oxide (CuO) was added as a supplement because it can improve the wetting behavior between molten Ag and AAO templates. After Ag nanowire arrays were embedded within AAO pores, a novel hydrothermal etching method was proposed to remove AAO templates because AAO had phase transition and became difficult to be removed after heating process at 970°C. To test the properties of Ag nanowire arrays obtained, the surface-enhanced Raman scattering (SERS) performance was also studied.

Keywords: Anodic Aluminum Oxide, Chemical Wetting, Ag Nanowire Array

Suggested Citation

Zhang, Chenghao and Li, Chun and Si, Xiaoqing and He, Zongjing and Qi, Junlei and Feng, Jicai and Cao, Jian, Single-Crystalline Silver Nanowire Arrays Directly Synthesized on Substrates by Template Chemical Wetting (August 6, 2019). Available at SSRN: https://ssrn.com/abstract=3432825 or http://dx.doi.org/10.2139/ssrn.3432825

Chenghao Zhang (Contact Author)

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

Chun Li

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

Xiaoqing Si

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

Zongjing He

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

Junlei Qi

Wuhan University of Technology - Center for Smart Materials and Device Integration ( email )

Wuhan
China

Jicai Feng

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

Jian Cao

Harbin Institute of Technology - State Key Laboratory of Advanced Welding and Joining ( email )

92 West Dazhi Street
Nan Gang District
Harbin, 150001
China

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