Ultrafast Transient Terahertz Conductivity of Monolayer MoS 2 and WSe 2 Grown by Chemical Vapor Deposition
AuthorsDocherty, Callum J.
Joyce, Hannah J.
Herz, Laura M.
Johnston, Michael B.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
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AbstractWe have measured ultrafast charge carrier dynamics in monolayers and trilayers of the transition metal dichalcogenides MoS2 and WSe2 using a combination of time-resolved photoluminescence and terahertz spectroscopy. We recorded a photoconductivity and photoluminescence response time of just 350 fs from CVD-grown monolayer MoS2, and 1 ps from trilayer MoS2 and monolayer WSe2. Our results indicate the potential of these materials as high-speed optoelectronic materials.
CitationUltrafast Transient Terahertz Conductivity of Monolayer MoS 2 and WSe 2 Grown by Chemical Vapor Deposition 2014, 8 (11):11147 ACS Nano
PublisherAmerican Chemical Society (ACS)
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