• 文献标题:   Electrohydrodynamic jet printing and a preliminary electrochemistry test of graphene micro-scale electrodes
  • 文献类型:   Article
  • 作  者:   WANG DZ, ZHA W, FENG L, MA Q, LIU XM, YANG N, XU Z, ZHAO XJ, LIANG JS, REN TQ, WANG XD
  • 作者关键词:   electrohydrodynamic jet, printing, graphene, electrochemistry test
  • 出版物名称:   JOURNAL OF MICROMECHANICS MICROENGINEERING
  • ISSN:   0960-1317 EI 1361-6439
  • 通讯作者地址:   Dalian Univ Technol
  • 被引频次:   5
  • DOI:   10.1088/0960-1317/26/4/045010
  • 出版年:   2016

▎ 摘  要

This paper reports the use of electrohydrodynamic jet (E-jet) printing technique for producing a wide range of graphene micro-scale structures. Ethyl cellulose-dispersed graphene ink and Nafion-dispersed graphene ink were prepared and used for E-Jet printing. A glass slide and PDMS substrate were used for E-Jet printing of graphene ink. The E-jet printed graphene micro-scale structures using ethyl cellulose-dispersed graphene ink presented a feature of center arrayed graphene surrounded by the track of evaporated solution. However, the E-Jet printed graphene structures using Nafion-dispersed graphene ink exhibited uniform arranged features. It was observed that the resistivity of the graphene structures printed from the ethyl cellulose-dispersed graphene ink was much lower than that from the Nafion-dispersed graphene ink. In addition, the graphene micro-scale electrodes were E-Jet printed for preliminary electrochemical applications. The results showed that the graphene micro-scale electrodes had a distinct response for the lead ion. Furthermore, a Pt/graphene composite electrode was formed and an electrochemistry test was conducted. It was found that the Pt/ graphene composite electrode had a more sensitive response compared with the pure Pt electrode for electrochemical sensing.