Intermediate-state imaging of electrical switching and quantum coupling of molybdenum disulfide monolayer.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 35609193.
- Also identified by DOI 10.1073/pnas.2122975119 and PMC identifier 9295762.
- Licence recorded as CC BY-NC-ND.
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Abstract
SignificanceThin transparent semiconductors of two-dimensional materials are attractive for the practical applications in next-generation nanoelectronic and optoelectronic devices. Probing the electron states and electrical switching mechanisms of a molybdenum disulphide monolayer with atomic-scale thickness (6.5 Å) allows us to unlock the full technological potential of this nanomaterial. We introduced a plasmonic phase imaging method to uncover the underlying mechanism and detailed switching dynamics of an electrical-state switching event. This dramatic phase change can be attributed to the reversible switching of classical electromagnetic coupling and quantum coupling effects interplaying between a single metal nanoparticle and molybdenum disulphide monolayer, and the transient intermediate states during the switching event can be directly imaged by a plasmonic technique.