Batteryless chemical detection with semiconductor nanowires

Xianying Wang, Yinmin Wang, Daniel Åberg, Paul Erhart, Nipun Misra, Aleksandr Noy, Alex V. Hamza, Junhe Yang

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


A batteryless chemical nanosensor has been developed from either vertically (ZnO) or randomly aligned (Si) semiconductor nanowires. The nanosensor makes use of a unique molecule-surface interaction mechanism that induces an electric potential difference between two electrodes. The magnitude of the electric potential depends sensitively on the molecule type and concentration. We demonstrate the sensing ability of two different platforms using ethanol molecules. Quantum mechanical calculations suggest that the batteryless nanosensor described may be universally applicable to other semiconductor materials.

Original languageEnglish (US)
Pages (from-to)117-121
Number of pages5
JournalAdvanced Materials
Issue number1
StatePublished - Jan 4 2011
Externally publishedYes


  • batteryless
  • chemical sensor
  • energy-conversion
  • nanowires
  • silicon
  • ZnO

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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