One-step synthesis of high conductivity silver nanoparticle-reduced graphene oxide composite films by electron beam irradiation

被引：32
作者：
Liu, Gang [1 ]
Pu, Xianjuan [1 ]
Jiang, Yong [1 ]
Cheng, Lingli [1 ]
Jiao, Zheng [1 ]
机构：
[1] Shanghai Univ, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2015年 / 349卷
基金：
中国国家自然科学基金;
关键词：
Silver nanoparticles; Reduced graphene oxide; Electron beam irradiation; Dimension controlled; Electrical property; AG NANOPARTICLES; GREEN SYNTHESIS; GRAPHITE OXIDE; REDUCTION; NANOSHEETS; NANOCOMPOSITES; OXIDATION; PERFORMANCES; DECORATION; FACILE;
D O I：
10.1016/j.apsusc.2015.05.044
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A rapid, eco-friendly, one-step electron beam (EB)-based method for both the reduction of graphene oxide and loading of Ag nanoparticles (AgNPs) were achieved. Further, the effects of irradiation dose on the morphology of AgNPs and the sheet resistance of Ag nanoparticles/reduced graphene oxide (AgNPs/rGO) were studied. The results reveal that when the irradiation dose increased from 70 kGy to 350 kGy, the size of the AgNPs decreased and became uniformly distributed over the surface of the rGO nanosheets. However the size of the AgNPs increased when the irradiation dose reached 500 kGy. Four-point probe measurement showed that the sheet resistance of the AgNPs/rGO films decreased with decreasing AgNPs size. The lowest sheet resistivity of 0.06 Omega m was obtained in the film corresponding to 350 kGy irradiation dose, which showed a much lower resistivity than the GO film (5.04 x 10(5) Omega m). The formation mechanisms of the as-prepared AgNPs/rGO nanocomposites were proposed. This study provides a fast and eco-friendly EB irradiation induced method to controlling the dimensions of AgNPs/rGO nanocomposites, which can strongly support the mass production of AgNPs/rGO nanocomposites for practical applications. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：570 / 575
页数：6
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