Ultrafast Charge Transfer Cascade in a Mixed-Dimensionality Nanoscale Trilayer.

ABSTRACT: Innovation in optoelectronic semiconductor devices is driven by a fundamental understanding of how to move charges and/or excitons (electron-hole pairs) in specified directions for doing useful work, e.g., for making fuels or electricity. The diverse and tunable electronic and optical properties of two-dimensional (2D) transition metal dichalcogenides (TMDCs) and one-dimensional (1D) semiconducting single-walled carbon nanotubes (s-SWCNTs) make them good quantum confined model systems for fundamental studies of charge and exciton transfer across heterointerfaces. Here we demonstrate a mixed-dimensionality 2D/1D/2D MoS₂/SWCNT/WSe₂ heterotrilayer that enables ultrafast photoinduced exciton dissociation, followed by charge diffusion and slow recombination. Importantly, t

SUBMITTER: Myers AR 

PROVIDER: S-EPMC10958597 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature