Tailoring the number of junctions per electrode pair in networked ZnO nanowire sensors

Jae Young Park, Sun Woo Choi, Sang Sub Kim

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Networked ZnO nanowire sensors have been fabricated via selective growth of ZnO nanowires by the vapor growth method. The number of junctions per electrode pair (NJE) was deliberately controlled by changing the spacing of interdigital electrodes. Its effects on the sensing properties to NO2 and CO were investigated. As the NJE increased, superior sensing properties were attained. This novel method to fabricate gas sensors using vapor-phase grown nanowires may circumvent the drawbacks of single nanowire gas sensors. Importantly, the NJE needs to be tuned to fully exploit networked nanowires in gas sensors.

Original languageEnglish
Pages (from-to)3922-3926
Number of pages5
JournalJournal of the American Ceramic Society
Volume94
Issue number11
DOIs
StatePublished - Nov 2011

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