Extended Data Fig. 6: Transfer characteristics of monolayer WS2 and WSe2 FETs with Bi contacts.
From: Ultralow contact resistance between semimetal and monolayer semiconductors

a, b, Typical transfer characteristics of Bi–WS2 (a) and Bi–WSe2 (b) FETs on 100-nm SiNx at room temperature. Both transistors exhibit n-type conduction with a high ION/IOFF ratio of >107.