Direct Growth of Laser-Induced Graphene Electrodes on Polyimides with Different Internal Linkages 


Vol. 60,  No. 6, pp. 375-382, Dec.  2023
10.12772/TSE.2023.60.375


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  Abstract

We present a facile direct-writing heteroatom-doped graphene on molecularly controlled polyimides using a continuous-wave CO2 infrared laser scriber. We first synthesized polyimide (PI) films with various internal linkages such as phenylene, trifluoromethyl, and sulfone groups by conventional two-step polycondensation of 4,4'-oxydianiline with three different tetracarboxylic dianhydrides. The development of graphene from each PI film surfaces was confirmed by characterizing the heteroatom-doped (N-doped, F-doped, and S-doped) laser-induced graphene (LIG) layers. We found that both laser processing parameters (e.g., laser power and scan speed) and chemical backbones of PIs had a large influence on the formation and quality of the LIG, investigated in terms of the ID/IG and I2D Raman bands, crystalline size, surface composition, and sheet resistance. A small amount of heteroatom-doping derived from the PI backbones might easily control the electrical conductivity of LIG electrode. It is predicted that the LIG developed according to the obtained results can offer new opportunities for the required simple, low-cost, and flexible electronics and sensors.

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[IEEE Style]

남기호, 손정민, 황윤찬, 박재희, 남기호, "Direct Growth of Laser-Induced Graphene Electrodes on Polyimides with Different Internal Linkages," Textile Science and Engineering, vol. 60, no. 6, pp. 375-382, 2023. DOI: 10.12772/TSE.2023.60.375.

[ACM Style]

남기호, 손정민, 황윤찬, 박재희, and 남기호. 2023. Direct Growth of Laser-Induced Graphene Electrodes on Polyimides with Different Internal Linkages. Textile Science and Engineering, 60, 6, (2023), 375-382. DOI: 10.12772/TSE.2023.60.375.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)