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Green synthesis of high conductivity silver nanoparticle-reduced graphene oxide composite films
Dinh D.A.1; Hui K.S.2; Hui K.N.1; Cho Y.R.1; Zhou W.3; Hong X.4; Chun H.-H.1
2014-04-15
Source PublicationApplied Surface Science
ISSN01694332
Volume298Pages:62-67
AbstractA green facile chemical approach to control the dimensions of Ag nanoparticles-graphene oxide (AgNPs/GO) composites was performed by the in situ ultrasonication of a mixture of AgNO and graphene oxide solutions with the assistance of vitamin C acting as an environmentally friendly reducing agent at room temperature. With decreasing ultrasonication time, the size of the Ag nanoparticles decreased and became uniformly distributed over the surface of the GO nanosheets. The as-prepared AgNPs/rGO composite films were then formed using a spin coating method and reduced at 500 C under N /H gas flow for 1 h. Four-point probe measurements showed that the sheet resistance of the AgNPs/rGO films decreased with decreasing AgNPs size. The lowest sheet resistance of 270 Ω/sq was obtained in the film corresponding to 1 min of ultrasonication, which showed a 40 times lower resistivity than the rGO film (10.93 kΩ/sq). The formation mechanisms of the as-prepared AgNPs/rGO films are proposed. This study provides a guide to controlling the dimensions of AgNPs/rGO films, which might hold promise as advanced materials for a range of analytical applications, such as catalysis, sensors and microchips. © 2014 Elsevier B.V.
KeywordComposites Dimension controlled Electrical property Films Reduced graphene oxide Silver nanoparticles Ultrasonication Vitamin C
DOI10.1016/j.apsusc.2014.01.101
URLView the original
Language英語
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Cited Times [WOS]:45   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Pusan National University
2.Hanyang University
3.Xiamen University
4.South China Normal University
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GB/T 7714
Dinh D.A.,Hui K.S.,Hui K.N.,et al. Green synthesis of high conductivity silver nanoparticle-reduced graphene oxide composite films[J]. Applied Surface Science,2014,298:62-67.
APA Dinh D.A..,Hui K.S..,Hui K.N..,Cho Y.R..,Zhou W..,...&Chun H.-H..(2014).Green synthesis of high conductivity silver nanoparticle-reduced graphene oxide composite films.Applied Surface Science,298,62-67.
MLA Dinh D.A.,et al."Green synthesis of high conductivity silver nanoparticle-reduced graphene oxide composite films".Applied Surface Science 298(2014):62-67.
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