电极
材料科学
导电体
介电谱
电阻式触摸屏
转印
图层(电子)
3D打印
电阻率和电导率
循环伏安法
炭黑
印刷电子产品
丝网印刷
光电子学
复合材料
纳米技术
电化学
电气工程
化学
墨水池
工程类
物理化学
天然橡胶
作者
Aya Abdalla,Hairul Hisham Hamzah,Oliver Keattch,Derek Covill,Bhavik Anil Patel
标识
DOI:10.1016/j.electacta.2020.136618
摘要
3D-printing of conductive carbon materials in sensing applications and energy storage devices has significant potential, however high resistivity of 3D-printed filaments poses a challenge. Strategies to enhance sensors post printing are time consuming and can reduce structural integrity. In this work, we investigated the effects different printing layer thickness and orientation can have on the electron transfer kinetics and resistivity of conductive materials. The response of these electrodes was investigated by cyclic voltammetry, electrochemical impedance spectroscopy and imaging. Electrodes printed with the lowest layer thickness of 0.1 mm in a vertical orientation had the greatest conductivity. With increasing print layer thickness and printing in a horizontal orientation, the electrode was more resistive. This work is the first to demonstrate the significant impact 3D-printing parameters can have on the electron transfer kinetics of carbon conductive electrodes. The implications of this study are important in defining the manufacturing process of electrodes for all applications.
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