Inkjet printed acrylic formulations based on UV-reduced graphene oxide nanocomposites

被引：77

作者：

Giardi, R. ^{[1
]}

Porro, S. ^{[1
]}

Chiolerio, A. ^{[1
]}

Celasco, E. ^{[1
]}

Sangermano, M. ^{[2
]}

机构：

[1] Ist Italiano Tecnol, Ctr Space Human Robot, I-10129 Turin, Italy

[2] Politecn Torino, Dipartimento Sci Applicata & Tecnol, I-10129 Turin, Italy

来源：

JOURNAL OF MATERIALS SCIENCE | 2013年 / 48卷 / 03期

关键词：

GRAPHITE OXIDE; REDUCTION; MODEL;

D O I：

10.1007/s10853-012-6866-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work reports the formulation of water-based graphene oxide/acrylic nanocomposite inks, and the structural and electrical characterization of test patterns obtained by inkjet direct printing through a commercial piezoelectric micro-fabrication device. Due to the presence of heavily oxygenated functional groups, graphene oxide is strongly hydrophilic and can be readily dispersed in water. Through a process driven by UV irradiation, graphene oxide contained in the inks was reduced to graphene during photo-curing of the polymeric matrix. Printed samples of the nanocomposite material showed a decrease of resistivity with respect to the polymeric matrix. The analysis of the influence of printed layer thickness on resistivity showed that thin layers were less resistive than thick layers. This was explained by the reduced UV penetration depth in thick layers due to shielding effect, resulting in a less effective photo-reduction of graphene oxide.

引用

页码：1249 / 1255

页数：7

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