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dc.contributor.authorChua, Zhong Yangen
dc.contributor.authorMoon, Seung Kien
dc.contributor.authorJiao, Lishien
dc.contributor.authorSong, Jieen
dc.contributor.authorBi, Guijunen
dc.contributor.authorZheng, Hongyuen
dc.contributor.authorLee, Byunghoonen
dc.contributor.authorKoo, Jamyeongen
dc.identifier.citationJiao, L., Chua, Z. Y., Moon, S. K., Song, J., Bi, G., Zheng, H., . . . Koo, J. (2019). Laser-induced graphene on additive manufacturing parts. Nanomaterials, 9(1), 90-. doi:10.3390/nano9010090en
dc.description.abstractAdditive 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.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.format.extent9 p.en
dc.rights© 2019 The Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
dc.subject3D Printingen
dc.subjectAdditive Manufacturingen
dc.subjectDRNTU::Engineering::Mechanical engineeringen
dc.titleLaser-induced graphene on additive manufacturing partsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen
dc.contributor.researchSingapore Centre for 3D Printingen
dc.description.versionPublished versionen
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