Jung, Chan-Hee Kim, Wan-Joong Jung, Chang-Hee Hwang, In-Tae Khim, Dongyoon Kim, Dong-Yu Lee, Jae-Suk Ku, Bon-Cheol Choi, Jae-Hak 2024-01-20T07:01:27Z 2024-01-20T07:01:27Z 2021-09-05 2015-06 0008-6223 https://pubs.kist.re.kr/handle/201004/125375 Facile and efficient fabrication of polyacrylonitrile (PAN)-based conductive graphitic carbon microstructures (GCMs) and their application to the electrodes of organic field-effect transistors (OFETs) is described. The PAN thin films spin-coated on a SiO2-deposited Si wafer was irradiated through a pattern mask with 150 key H+ ions at various fluences, and subsequently developed to form PAN microstructures. The resulting PAN microstructures were carbonized at various temperatures to create the GCMs. The analytical results revealed that the optimized fluence and carbonization temperature for well-defined GCMs was 3 x 10(15) - ions cm(-2) and 100 degrees C, respectively, and that the resulting GCMs created at the optimized condition exhibited a greatly low surface roughness of 0.36 nm, a good electrical conductivity of about 600 S cm(-1), and a high work function of 5.11 eV. Noticeably, the GCM electrodes-based p-type OFET showed a comparable performance to that of the gold electrode-based one, demonstrating that the practical use of GCMs as cheap electrodes to replace expensive metallic ones for organic electronic devices. (C) 2015 Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD ION-BEAM THERMAL STABILIZATION THIN-FILMS POLYACRYLONITRILE LITHOGRAPHY GRAPHENE FIBER RESIST OXIDE AIR A simple PAN-based fabrication method for microstructured carbon electrodes for organic field-effect transistors Article 10.1016/j.carbon.2015.02.040 1 CARBON, v.87, pp.257 - 268 CARBON 87 257 268 scie scopus 000352332900025 2-s2.0-84928408525 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article ION-BEAM THERMAL STABILIZATION THIN-FILMS POLYACRYLONITRILE LITHOGRAPHY GRAPHENE FIBER RESIST OXIDE AIR PAN Graphene FET