Synthesis of SnO2 nanowires and their gas sensing characteristics

In Sung Hwang, Young Jin Choi, Jae Hwan Park, Jae Gwan Park, Ki Won Kim, Jong Heun Lee

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

A network of SnO2 nanowires was fabricated on the electrodes and their NO2 gas sensing properties were examined. SnO2 nanowires were synthesized by using a simple thermal evaporation process with Sn metal powders at low temperatures of 600 ∼ 700 °C. The diameters of the nanowires ranged from 50 nm to 100 nm, which was determined by the processing temperature and the oxygen content. At a the NO2 concentration of 20 ppm, a sensitivity of 300, a response time of 100 s, and a recovery time of 200 s were observed.

Original languageEnglish
Pages (from-to)1229-1233
Number of pages5
JournalJournal of the Korean Physical Society
Volume49
Issue number3
Publication statusPublished - 2006 Sep

Keywords

  • Chemical gas sensor
  • Nanostructures
  • SnO

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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