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Enhancing the photocurrent and photoluminescence of single crystal monolayer MoS{sub 2} with resonant plasmonic nanoshells

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4862745· OSTI ID:22280717
 [1];  [2]; ;  [3]; ;  [4]
  1. Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005 (United States)
  2. Department of Physics and Astronomy, Rice University, Houston, Texas 77005 (United States)
  3. Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005 (United States)
  4. Department of Chemistry, Rice University, Houston, Texas 77005 (United States)
Monolayer molybdenum disulfide (MoS{sub 2}) produced by controlled vapor-phase synthesis is a commercially promising new two-dimensional material for optoelectronics because of its direct bandgap and broad absorption in the visible and ultraviolet regimes. By tuning plasmonic core-shell nanoparticles to the direct bandgap of monolayer MoS{sub 2} and depositing them sparsely (<1% coverage) onto the material's surface, we observe a threefold increase in photocurrent and a doubling of photoluminescence signal for both excitonic transitions, amplifying but not altering the intrinsic spectral response.
OSTI ID:
22280717
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 3 Vol. 104; ISSN APPLAB; ISSN 0003-6951
Country of Publication:
United States
Language:
English