Equivalent circuit model of semiconductor nanowire diode by SPICE

Se Han Lee, Yun Seop Yu, Sung Woo Hwang, Doyeol Ahn

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


An equivalent circuit model of nanowire diodes is introduced. Because nanowire diodes inevitably involve a metal-semiconductor-metal structure, they consist of two metal-semiconductor contacts and one resistor in between these contacts. Our equivalent circuit consists of two Schottky diodes and one resistor. The current through the reverse-biased Schottky diode is calculated from the thermionic field emission (TFE) theory and that of the forward-biased Schottky diode is obtained from the classical thermionic emission (TE) equation. Our model is integrated into the conventional circuit simulator SPICE by a sub-circuit with TFE and TE routines. The results simulated with our model by SPICE are in good agreement with various, previously reported experimental results.

Original languageEnglish
Pages (from-to)4089-4093
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Issue number11
StatePublished - Nov 2007


  • Equivalent circuit
  • Nanowire
  • Schottky contact
  • Thermal emission
  • Thermionic field emission


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