Plasmon Field Effect Transistor for Plasmon to Electric Conversion and Amplification

Hossein Shokri Kojori, Ju Hyung Yun, Younghun Paik, Joondong Kim, Wayne A. Anderson, Sung Jin Kim

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


Direct coupling of electronic excitations of optical energy via plasmon resonances opens the door to improving gain and selectivity in various optoelectronic applications. We report a new device structure and working mechanisms for plasmon resonance energy detection and electric conversion based on a thin film transistor device with a metal nanostructure incorporated in it. This plasmon field effect transistor collects the plasmonically induced hot electrons from the physically isolated metal nanostructures. These hot electrons contribute to the amplification of the drain current. The internal electric field and quantum tunneling effect at the metal-semiconductor junction enable highly efficient hot electron collection and amplification. Combined with the versatility of plasmonic nanostructures in wavelength tunability, this device architecture offers an ultrawide spectral range that can be used in various applications.

Original languageEnglish (US)
Pages (from-to)250-254
Number of pages5
JournalNano Letters
Issue number1
StatePublished - Jan 13 2016


  • localized surface plasmon resonance
  • nanophotonics
  • plasmon energy detection
  • plasmon field effect transistor

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


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