Ultrafast Charge Separation in Bilayer WS2/Graphene Heterostructure Revealed by Time- and Angle-Resolved Photoemission Spectroscopy

URN to cite this document:: urn:nbn:de:bvb:355-epub-449955
DOI to cite this document:: 10.5283/epub.44995

Krause, Razvan ; Chávez-Cervantes, Mariana ; Aeschlimann, Sven ; Forti, Stiven ; Fabbri, Filippo

; Rossi, Antonio ; Coletti, Camilla

; Cacho, Cephise ; Zhang, Yu

; Majchrzak, Paulina Ewa

; Chapman, Richard T. ; Springate, Emma

; Gierz, Isabella

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Date of publication of this fulltext: 01 Jun 2021 15:15

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Abstract

Efficient light harvesting devices need to combine strong absorption in the visible spectral range with efficient ultrafast charge separation. These features commonly occur in novel ultimately thin van der Waals heterostructures with type II band alignment. Recently, ultrafast charge separation was also observed in monolayer WS2/graphene heterostructures with type I band alignment. Here we use ...