Polarity control of carrier injection for nanowire feedback field-effect transistors

Doohyeok Lim, Sangsig Kim

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We present polarity control of the carrier injection for a feedback field-effect transistor (FBFET) with a selectively thinned p+-i-n+ Si nanowire (SiNW) channel and two separate gates. The SiNW FBFET can be reconfigured in the p- or n-channel operation modes via simple control of electric signals. The two separate gates induce potential barriers in the SiNW channel for selective control of the carrier injection. In contrast to previously reported reconfigurable transistors, our transistor features symmetry of the electrical characteristics for the p- and n-channel operation modes. Positive-feedback operation of the SiNW FBFET provides superior switching characteristics for the p- and n-type configurations, including the on/off ratios (∼ 105) and subthreshold swings (1.36-1.78 mV/dec). This novel transistor is a promising candidate for reconfigurable electronics. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)2509-2514
Number of pages6
JournalNano Research
Issue number10
Publication statusPublished - 2019 Oct 1


  • positive-feedback loop
  • reconfigurable transistor
  • separate gate
  • silicon nanowire

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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