Proceedings of the
9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2022)
15 – 18 November 2022, Singapore

Thermal Transfer Printing of Laser-Induced Graphene for Textile Supercapacitors

Soongeun Kwon1,a, Hak-Jong Choi1,a, Junhyoung Ahn1, Hyungjun Lim1, Geehong Kim1, Kee-Bong Choi1 and JaeJong Lee1

1Nano-Convergence Manufacturing Systems Research Division, Korea Institute of Machinery and Materials,156, Gajeongbuk-Ro, Yuseong-Gu, Daejeon 34103, Republic of Korea


In this work, thermal transfer printing process was performed to fabricate a LIG on textile substrates (LIGT). A thermally adhesive film of a conventional transfer paper was used to attach a LIG on polymer substrates (LIGP) to a cotton fabric substrate at elevated temperature and pressure of thermal transfer printing. Experimental conditions were optimized to provide LIGTs with low sheet resistance while maintaining high porosity and crystallinity. As-fabricated LIGTs were demonstrated as in-plane textile MSC electrodes by exhibiting typical electrical double layer capacitive characteristics. The proposed thermal transfer printing is also scalable to make large-area LIGT patterns, thus providing various array configurations of LIGT-MSCs in series and in parallel for high voltage and large capacitance textile MSCs, respectively.

Keywords: Thermal transfer printing, Laser-induced graphene, Textile supercapacitors, Microsupercapacitors, Interdigitated electrode

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