Graphene Nanoribbons (GNRs) for Future Interconnect

Highly stretchable graphene nanoribbon springs by programmable nanowire lithography

“…[4][5][6][7][8][9][10] In order to be integrated into planar circuitry, as conductive interconnections [11][12][13] or active channels, the graphene film has to be patterned into narrow ribbons with controlled width and precise spatial arrangement. [14][15][16][17] Usually, graphene nanoribbons (GNRs) of tens of nanometers wide are etched out of graphene monolayer, by using sophisticated electron beam lithography (EBL), 18 which is unfortunately too expansive to implement for large-scale flexible electronics. In contrast, selfassembly GNRs can be synthesized from molecules in solution environment, 19,20 by unzipping multi-walled carbon nanotubes 21 or by reducing graphene oxide flakes, 22 which provide promising approaches to fabricate nearly perfect GNR segments.…”

MoCl5intercalation doping and oxygen passivation of submicrometer-sized multilayer graphene

“…Multilayer graphene (MLG) is one of the most promising candidates for application in LSI interconnects because of its long mean free path of charge carriers. [1][2][3][4] However, graphene has lower carrier density than ordinary metals. Charge transfer doping is one way to increase the carrier density, but charge transfer doping from surface molecules is effective in only a few surface layers of MLG due to the screening effect.…”