Ag@Ni Core-Shell Nanowire Network for Robust Transparent Electrodes Against Oxidation and Sulfurization

作者：Eom Hyeonjin; Lee Jaemin; Pichitpajongkit Aekachan; Amjadi Morteza; Jeong Jun Ho; Lee Eungsug; Lee Jung Yong; Park Inkyu^*

来源：Small, 2014, 10(20): 4171-4181.

DOI：10.1002/smll.201400992

• transparent electrodes
• core-shell nanostructure
• electrodeposition
• anti-oxidation
• anti-sulfurization

Silver nanowire (Ag NW) based transparent electrodes are inherently unstable to moist and chemically reactive environment. A remarkable stability improvement of the Ag NW network film against oxidizing and sulfurizing environment by local electrodeposition of Ni along Ag NWs is reported. The optical transmittance and electrical resistance of the Ni deposited Ag NW network film can be easily controlled by adjusting the morphology and thickness of the Ni shell layer. The electrical conductivity of the Ag NW network film is increased by the Ni coating via welding between Ag NWs as well as additional conductive area for the electron transport by electrodeposited Ni layer. Moreover, the chemical resistance of Ag NWs against oxidation and sulfurization can be dramatically enhanced by the Ni shell layer electrodeposited along the Ag NWs, which provides the physical barrier against chemical reaction and diffusion as well as the cathodic protection from galvanic corrosion.

• 出版日期2014-10-29