Waveguide-integrated van der Waals heterostructure photodetector at telecom wavelengths with high speed and high responsivity.

ABSTRACT: Intensive efforts have been devoted to the exploration of new optoelectronic devices based on two-dimensional transition-metal dichalcogenides (TMDCs) owing to their strong light-matter interaction and distinctive material properties. In particular, photodetectors featuring both high-speed and high-responsivity performance are of great interest for a vast number of applications such as high-data-rate interconnects operated at standardized telecom wavelengths. Yet, the intrinsically small carrier mobilities of TMDCs become a bottleneck for high-speed application use. Here, we present high-performance vertical van der Waals heterostructure-based photodetectors integrated on a silicon photonics platform. Our vertical MoTe₂-graphene heterostructure design minimizes the carrier trans

SUBMITTER: Flory N 

PROVIDER: S-EPMC7025876 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature