A Quest for Structurally Uniform Graphene Nanoribbons: Synthesis, Properties, and Applications

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Abstract
Graphene nanoribbons are the class of next-generation carbon materials that attract many researchers in various research fields. Their unique properties, such as band-gap, conductivity, carrier mobility, thermal conductivity, spin polarization, and on-off behavior, heavily depend on structural factors such as edge structure, width and length. Therefore, the synthesis of graphene nanoribbons with controlling over these structural factors with atomic precision is crucially important. Among various synthetic approaches, the bottom-up synthetic methods such as on-surface polymerizations and solution-phase polymerizations represent promising ways to control over width, length and edge structure of graphene nanoribbons. In this Perspective, we introduce the recently reported bottom-up synthetic methods for graphene nanoribbons and the theoretical and experimental researches on those physical properties and applications. Reviewing these researches along with highlighting advantages and limitations, we emphasize how structurally controlled synthesis is important and provides future outlooks in graphene nanoribbon science.
Funding Information
  • Exploratory Research for Advanced Technology (JPMJER1302)
  • Sumitomo Foundation (141495)
  • Japan Society for the Promotion of Science (18J10996, 19H05463, JP16H00907, JP17K1955, JP18H02019, JP26810057)

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