Exciton broadening in WS2 /graphene heterostructures

URN to cite this document:: urn:nbn:de:bvb:355-epub-396454
DOI to cite this document:: 10.5283/epub.39645

Hill, Heather M. ; Rigosi, Albert F. ; Raja, Archana ; Chernikov, Alexey ; Roquelet, Cyrielle ; Heinz, Tony F.

Preview

PDF - Published Version
(884kB)

Date of publication of this fulltext: 20 Mar 2019 13:12

Alternative links to fulltext:DOI Publisher

Details

Preview

Indexed in

Export bibliographical data

Abstract

We have used optical spectroscopy to observe spectral broadening of WS2 exciton reflectance peaks in heterostructures of monolayer WS2 capped with mono- to few-layer graphene. The broadening is found to be similar for the A and B excitons and on the order of 5-10 meV. No strong dependence on the number of graphene layers was observed within experimental uncertainty. The broadening can be ...