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Laser-Induced Graphene on Additive Manufacturing Parts

Singapore Centre for 3D Printing, School of Mechanical and Aerospace, Nanyang Technological University, Singapore 639798, Singapore
Singapore Institute of Manufacturing Technology, 73 Nanyang Drive, Singapore 637662, Singapore
School of Mechanical Engineering, Shandong University of Technology, Zibo 255000, China
Global Technology Center, Samsung Electronics Co., Ltd., Suwon 16677, Korea
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(1), 90;
Received: 28 December 2018 / Revised: 5 January 2019 / Accepted: 7 January 2019 / Published: 11 January 2019
Additive manufacturing (AM) has become more prominent in leading industries. Recently, there have been intense efforts to achieve a fully functional 3D structural electronic device by integrating conductive structures into AM parts. Here, we introduce a simple approach to creating a conductive layer on a polymer AM part by CO2 laser processing. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy were employed to analyze laser-induced modifications in surface morphology and surface chemistry. The results suggest that conductive porous graphene was obtained from the AM-produced carbon precursor after the CO2 laser scanning. At a laser power of 4.5 W, the lowest sheet resistance of 15.9 Ω/sq was obtained, indicating the excellent electrical conductivity of the laser-induced graphene (LIG). The conductive graphene on the AM parts could serve as an electrical interconnection and shows a potential for the manufacturing of electronics components. An interdigital electrode capacitor was written on the AM parts to demonstrate the capability of LIG. Cyclic voltammetry, galvanostatic charge-discharge, and cyclability testing demonstrated good electrochemical performance of the LIG capacitor. These findings may create opportunities for the integration of laser direct writing electronic and additive manufacturing. View Full-Text
Keywords: 3D printing; additive manufacturing; laser direct writing electronics; laser-induced graphene 3D printing; additive manufacturing; laser direct writing electronics; laser-induced graphene
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MDPI and ACS Style

Jiao, L.; Chua, Z.Y.; Moon, S.K.; Song, J.; Bi, G.; Zheng, H.; Lee, B.; Koo, J. Laser-Induced Graphene on Additive Manufacturing Parts. Nanomaterials 2019, 9, 90.

AMA Style

Jiao L, Chua ZY, Moon SK, Song J, Bi G, Zheng H, Lee B, Koo J. Laser-Induced Graphene on Additive Manufacturing Parts. Nanomaterials. 2019; 9(1):90.

Chicago/Turabian Style

Jiao, Lishi, Zhong Y. Chua, Seung K. Moon, Jie Song, Guijun Bi, Hongyu Zheng, Byunghoon Lee, and Jamyeong Koo. 2019. "Laser-Induced Graphene on Additive Manufacturing Parts" Nanomaterials 9, no. 1: 90.

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