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Ag@Ni Core–Shell Nanowire Network for Robust Transparent Electrodes Against Oxidation and Sulfurization
Author(s) -
Eom Hyeonjin,
Lee Jaemin,
Pichitpajongkit Aekachan,
Amjadi Morteza,
Jeong JunHo,
Lee Eungsug,
Lee JungYong,
Park Inkyu
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201400992
Subject(s) - materials science , oxidizing agent , nanowire , electrode , layer (electronics) , sheet resistance , coating , cathodic protection , galvanic cell , corrosion , oxide , chemical engineering , nanotechnology , composite material , electrochemistry , metallurgy , chemistry , organic chemistry , engineering
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.