Thermal Transfer Printing of Laser-Induced Graphene for Textile Supercapacitors
1Nano-Convergence Manufacturing Systems Research Division, Korea Institute of Machinery and Materials,156, Gajeongbuk-Ro, Yuseong-Gu, Daejeon 34103, Republic of Korea
ABSTRACT
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
1Nano-Convergence Manufacturing Systems Research Division, Korea Institute of Machinery and Materials,156, Gajeongbuk-Ro, Yuseong-Gu, Daejeon 34103, Republic of Korea
ABSTRACT
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
