Kim, Yoong Ahm Aoki, Shunta Fujisawa, Kazunori Ko, Yong-Il Yang, Kap-Seung Yang, Cheol-Min Jung, Yong Chae Hayashi, Takuya Endo, Morinobu Terrones, Mauricio Dresselhaus, Mildred S. 2024-01-20T10:30:50Z 2024-01-20T10:30:50Z 2021-09-04 2014-02-27 1932-7447 https://pubs.kist.re.kr/handle/201004/127076 Carbon nanotubes have shown great potential as conductive fillers in various composites, macro-assembled fibers, and transparent conductive films due to their superior electrical conductivity. Here, we present an effective defect engineering strategy for improving the intrinsic electrical conductivity of nanotube assemblies by thermally incorporating a large number of boron atoms into substitutional positions within the hexagonal framework of the tubes. It was confirmed that the defects introduced after vacuum ultraviolet and nitrogen plasma treatments facilitate the incorporation of a large number of boron atoms (ca. 0.496 atomic %) occupying the trigonal sites on the tube sidewalls during the boron doping process, thus eventually increasing the electrical conductivity of the carbon nanotube film. Our approach provides a potential solution for the industrial use of macro-structured nanotube assemblies, where properties, such as high electrical conductance, high transparency, and lightweight, are extremely important. English American Chemical Society CHEMICAL-VAPOR-DEPOSITION ELECTRONIC-STRUCTURE RAMAN-SPECTROSCOPY HEAT-TREATMENT CONDUCTIVITY PERFORMANCE GRAPHITE FIBERS FILMS Defect-Assisted Heavily and Substitutionally Boron-Doped Thin Multiwalled Carbon Nanotubes Using High-Temperature Thermal Diffusion Article 10.1021/jp410732r 1 The Journal of Physical Chemistry C, v.118, no.8, pp.4454 - 4459 The Journal of Physical Chemistry C 118 8 4454 4459 scie scopus 000332188100068 2-s2.0-84896822225 Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article CHEMICAL-VAPOR-DEPOSITION ELECTRONIC-STRUCTURE RAMAN-SPECTROSCOPY HEAT-TREATMENT CONDUCTIVITY PERFORMANCE GRAPHITE FIBERS FILMS Boron-doped MWNT Thermal Diffusion