Supertransport of excitons in atomically thin organic semiconductors at the 2D quantum limit.

ABSTRACT: Long-range and fast transport of coherent excitons is important for the development of high-speed excitonic circuits and quantum computing applications. However, most of these coherent excitons have only been observed in some low-dimensional semiconductors when coupled with cavities, as there are large inhomogeneous broadening and dephasing effects on the transport of excitons in their native states in materials. Here, by confining coherent excitons at the 2D quantum limit, we first observed molecular aggregation-enabled 'supertransport' of excitons in atomically thin two-dimensional (2D) organic semiconductors between coherent states, with a measured high effective exciton diffusion coefficient of ~346.9 cm²/s at room temperature. This value is one to several orders of magnitud

SUBMITTER: Sharma A 

PROVIDER: S-EPMC7338549 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature