Photo-Sensitivity of Large Area Physical Vapor Deposited Mono and Bilayer MoS2 (Postprint)

Abstract

We present photosensitivity in large area physical vapour deposited mono and bi-layer MoS2 films. Photo-voltaic effect was observed in single layer MoS2 without any apparent rectifying junctions, making device fabrication straightforward. For bi-layers, no such effect was present, suggesting strong size effect in light-matter interaction. The photo-voltaic effect was observed to highly direction dependent in the film plane, which suggests that the oblique deposition configuration plays a key role in developing the rectifying potential gradient. To the best of our knowledge, this is the first report of any large area and transfer free MoS2 photo device with performance comparable to their exfoliated counterparts.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2014
Accession Number
ADA608490

Entities

People

  • Andrey A. Voevodin
  • Baoming Wang
  • Christopher Muratore
  • Mohammad Ariful Haque

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Charge Carriers
  • Energy Bands
  • Fabrication
  • Light Sources
  • Materials
  • Materials Processing
  • Metal-Semiconductor Junctions
  • Metallic Nanoparticles
  • Photovoltaic Effect
  • Semiconductors
  • Sensitivity
  • Solar Cells
  • Surface Plasmon Polaritons
  • Surface Plasmon Resonance
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Thin Film Deposition Science.