Facile construction of electrically-conductive carbon patterns from a cheap coal-type pitch and their application to electric heating devices

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 39; pp. 188 - 193
• Main Authors: Jung, Jin-Mook, Hong, Ji-Hyun, Hwang, In-Tae, Shin, Junhwa, Kim, Young-Ju, Jeong, Young Gyu, Jung, Chan-Hee, Choi, Jae-Hak
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.07.2016; 한국공업화학회
• Subjects: Carbon; Conductive carbon patterns; Construction industry; Electric heating; Electric heating elements; Electrical resistivity; Lithography; Pitch; Proton beam lithography; Pyrolysis; Thin films; 화학공학; Proton beam lithography; Pitch; Pyrolysis; Electric heating; Conductive carbon patterns
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2016.05.023

[Display omitted] •Electrically conductive carbon patterns (ECPs) from pitch were prepared by proton beam lithography and pyrolysis.•Well-defined pith patterns were obtained by proton beam lithography at the optimized fluence.•The pitch patterns were converted to the ECPs with imperfect graphitic structure by pyrolysis.•The ECPs exhibited a low sheet resistance and a good electrical heating performance. Electrically-conductive carbon patterns (ECPs) from cheap pitch thin films were fabricated using a simple proton beam lithography and pyrolysis. Well-defined negative-type pitch patterns were formed at the optimized fluence of 3×1015ionscm−2, and then pyrolyzed at various temperatures to create ECPs. The precursory pitch patterns formed at the optimized conditions were successfully temperature-dependently converted to the ECPs by pyrolysis. The formed ECPs through pyrolysis at a higher temperature exhibited good electrical conductivity. Moreover, the ECPs exhibited good electric heating characteristics, demonstrating the possibility of using the ECPs as a cheap electric heating element.