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

Journal Article · Mon Jan 20 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4862745· OSTI ID:22280717

Sobhani, Ali ^[1]; Lauchner, Adam ^[2]; Najmaei, Sina; Lou, Jun ^[3]; Ayala-Orozco, Ciceron; Wen, Fangfang ^[4]

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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, Vol. 104, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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