Ontology highlight
ABSTRACT:
SUBMITTER: Zhu B
PROVIDER: S-EPMC4363839 | biostudies-other | 2015
REPOSITORIES: biostudies-other
Zhu Bairen B Chen Xi X Cui Xiaodong X
Scientific reports 20150318
The optical properties of monolayer transition metal dichalcogenides (TMDC) feature prominent excitonic natures. Here we report an experimental approach to measuring the exciton binding energy of monolayer WS₂ with linear differential transmission spectroscopy and two-photon photoluminescence excitation spectroscopy (TP-PLE). TP-PLE measurements show the exciton binding energy of 0.71 ± 0.01 eV around K valley in the Brillouin zone. ...[more]