We developed a novel Monte Carlo simulation model to investigate the line width dependence of the transport properties of multi-layered graphene nanoribbon (GNR) interconnects with edge roughness. We reported that the line width dependence of carrier mobility decreases significantly as the magnitude of the edge roughness gets smaller, which agrees well with experiments. We also discussed the influence of the inelasticity of edge roughness scatterings, inter-layer tunneling, and line width dependent band structures on the line width of the GNR interconnects.
We demonstrate a 128-Gbit/s/λ optical transmitter with newly developed DC-coupled linear driver IC for electro-absorption modulator. High-quality PAM-4 eye diagram with higher extinction ratio is obtained with low-power consumption, which is suitable for 100G-LR1/ER1 application.
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