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Preparation and resistivity study of silver nanocomposite films using spin‐assisted layer‐by‐layer assembly
Author(s) -
Feng Zhizhong,
Yan Fengyuan
Publication year - 2008
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.2927
Subject(s) - monolayer , electrical resistivity and conductivity , layer (electronics) , nanocomposite , silver nanoparticle , materials science , nanoparticle , substrate (aquarium) , x ray photoelectron spectroscopy , chemical engineering , polymer , deposition (geology) , silicon , nanotechnology , composite material , metallurgy , paleontology , oceanography , sediment , geology , electrical engineering , biology , engineering
Nanocomposite films [Ag/(PAH‐PSS) n PAH] m were fabricated on a silicon substrate using a time‐ and cost‐efficient spin‐assisted layer‐by‐layer (SA‐LbL) self‐assembly technique. A virtually monolayer‐like layer of self‐assembled silver nanoparticles was formed when deposition time increased to 30 min. It was found that polymer multilayers could effectively decrease the resistivity of silver nanoparticle monolayer, which was far higher than that of bulk silver metal; however, the resistivity of Ag/(PAH‐PSS) n PAH multilayer films increased along with the increasing of the number of polymer bilayers. XPS investigations showed that silver nanoparticles were partially oxidized, which might be the major cause of the high resistivity of silver nanoparticle monolayer. Copyright © 2008 John Wiley & Sons, Ltd.