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

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.
Authors:
 [1] ;  [2] ; ;  [3] ; ;  [4] ;  [1] ;  [5]
  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)
  5. (United States)
Publication Date:
OSTI Identifier:
22280717
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ELECTRONIC STRUCTURE; ENERGY GAP; MOLYBDENUM SULFIDES; MONOCRYSTALS; NANOSTRUCTURES; PHOTOCURRENTS; PHOTOLUMINESCENCE; PLASMONS; SPECTRAL RESPONSE; SURFACES; ULTRAVIOLET RADIATION; VAPORS