Get access
Advanced Materials

Metallic Nanoparticle Network for Photocurrent Generation and Photodetection

Authors

  • Xian Ning Xie,

    Corresponding author
    1. NUS Nanoscience and Nanotechnology Initiative (NUSNNI) National University of Singapore Singapore, 117542 (Singapore)
    • NUS Nanoscience and Nanotechnology Initiative (NUSNNI) National University of Singapore Singapore, 117542 (Singapore).
    Search for more papers by this author
  • Yilin Xie,

    1. Department of Physics National University of Singapore 2 Science Drive 3 Singapore, 117542 (Singapore)
    Search for more papers by this author
  • Xingyu Gao,

    1. Department of Physics National University of Singapore 2 Science Drive 3 Singapore, 117542 (Singapore)
    Search for more papers by this author
  • Chorng Haur Sow,

    1. Department of Physics National University of Singapore 2 Science Drive 3 Singapore, 117542 (Singapore)
    Search for more papers by this author
  • Andrew Thye Shen Wee

    1. NUS Nanoscience and Nanotechnology Initiative (NUSNNI) National University of Singapore Singapore, 117542 (Singapore)
    2. Department of Physics National University of Singapore 2 Science Drive 3 Singapore, 117542 (Singapore)
    Search for more papers by this author

Abstract

The generation and conduction of photoelectrons in ligated metallic Au NPs are demonstrated, and their key factors include tunneling of photoexcited electrons, the close packing of the NP network, and increased photoelectron-to-intrinsic electron ratio associated with ligand passivation. In view of their inherent characteristics, metallic NPs may provide a promising alternative to semiconductors in photocurrent and photodetection applications.

original image
Get access to the full text of this article

Ancillary