One-Step Fabrication of Low-Resistance Conductors on 3D-Printed Structures by Laser-Induced Graphene

被引：26

作者：

Gilavan, Mehraneh Tavakkoli ^{[1
]}

Rahman, Md Saifur ^{[1
,2
]}

Minhas-Khan, Aamir ^{[1
]}

Nambi, Suresh ^{[1
]}

Grau, Gerd ^{[1
]}

机构：

[1] York Univ, Lassonde Sch Engn, Dept Elect Engn & Comp Sci, Toronto, ON M3J 1P3, Canada

[2] Dartmouth Coll, Thayer Sch Engn, Hanover, NH 03755 USA

来源：

ACS APPLIED ELECTRONIC MATERIALS | 2021年 / 3卷 / 09期

基金：

加拿大自然科学与工程研究理事会;

关键词：

graphene; laser induction; 3D print; conductors; low sheet resistance; 3D; CARBON; CIRCUITS;

D O I：

10.1021/acsaelm.1c00480

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Three-dimensional (3D) printing is becoming increasingly prevalent in the manufacturing of goods for different applications. Many of these applications will benefit from the integration of electronics into 3D-printed structures. In this study, we report a fabrication method to convert 3D-printed polyetherimide (PEI) into graphene by exposing it to a scanned laser beam. This laser-induced graphene (LIG) is not only conductive but also has a large gauge factor for mechanical strain sensing. We have achieved a sheet resistance of 0.30 Omega/sq which is 50 times lower than that of previous reports on 3D-printed PEI/PC sheets and the lowest LIG sheet resistance value reported to date on any polymer substrate. This is achieved due to three main factors: large thickness of LIG on a 3D-printed object, maximization of the laser energy per unit area, and improved LIG morphology on 3D-printed PEI compared with that on commercial PEI.

引用

页码：3867 / 3875

页数：9

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