A low pressure gas ionization sensor using freestanding gold nanowires

Ramin Banan Sadeghian, Mojtaba Kahrizi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    Freestanding gold nanowires (AuNWs) were grown by electrochemically filling the nanoscale pores of anodic aluminum oxide (AAO) membranes, and removing the membrane selectively. The array of vertically-aligned AuNWs was used at one of the electrodes of a capacitor-like gas ionizing cell, while the counter electrode was a polished silicon wafer coated with aluminum. The field enhancement property of high aspect-ratio AuNWs was employed to reduce the gaseous breakdown voltage (Vb) at room temperature. The device was operated in low-pressure gas to study the effect of AuNWs on pre-breakdown current, and tested in sub-torr argon, where it demonstrated considerable reduction in the breakdown voltage compared to uniform field conditions. The effect of nanowire polarity on Vb and the pre-breakdown discharge current was also studied.

    Original languageEnglish
    Title of host publication2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings
    Pages1387-1390
    Number of pages4
    DOIs
    Publication statusPublished - 2007 Dec 1
    Event2007 IEEE International Symposium on Industrial Electronics, ISIE 2007 - Caixanova - Vigo, Spain
    Duration: 2007 Jun 42007 Jun 7

    Publication series

    NameIEEE International Symposium on Industrial Electronics

    Other

    Other2007 IEEE International Symposium on Industrial Electronics, ISIE 2007
    CountrySpain
    CityCaixanova - Vigo
    Period07/6/407/6/7

    Keywords

    • Field enhancement effect
    • Freestanding gold nanowires
    • Gas ionization sensor

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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  • Cite this

    Sadeghian, R. B., & Kahrizi, M. (2007). A low pressure gas ionization sensor using freestanding gold nanowires. In 2007 IEEE International Symposium on Industrial Electronics, ISIE 2007, Proceedings (pp. 1387-1390). [4374803] (IEEE International Symposium on Industrial Electronics). https://doi.org/10.1109/ISIE.2007.4374803