Ontology highlight
ABSTRACT:
SUBMITTER: Jiang C
PROVIDER: S-EPMC5821860 | biostudies-other | 2018 Feb
REPOSITORIES: biostudies-other
Jiang Chongyun C Xu Weigao W Rasmita Abdullah A Huang Zumeng Z Li Ke K Xiong Qihua Q Gao Wei-Bo WB
Nature communications 20180221 1
Transition metal dichalcogenides have valley degree of freedom, which features optical selection rule and spin-valley locking, making them promising for valleytronics devices and quantum computation. For either application, a long valley polarization lifetime is crucial. Previous results showed that it is around picosecond in monolayer excitons, nanosecond for local excitons and tens of nanosecond for interlayer excitons. Here we show that the dark excitons in two-dimensional heterostructures pr ...[more]