Ding et al fabricated waveguidecoupled integrated graphene plasmonic photodetectors on a Si platform with a bandwidth over 110 GHz and a high intrinsic responsivity of 360 mA W −1 which was attribute

Ding and colleagues have developed waveguide-coupled integrated photodetectors utilizing graphene plasmonics on a Silicon (Si) platform. These photodetectors exhibit an impressive bandwidth exceeding 110 GHz, and a high intrinsic responsivity of 360 mA W−1. The high responsivity was attributed to the plasmon-enhanced interaction between graphene and light, as well as the subwavelength confinement of optical energy. These results indicate promising potential for graphene plasmonic photodetectors in high-speed communication systems