Effect of Cl- ionic solutions on electrolyte-solution-gate diamond field-effect transistors

Toshikatsu Sakai, Yuta Araki, Hirofumi Kanazawa, Hitoshi Umezawa, Minoru Tachiki, Hiroshi Kawarada

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    Diamond field-effect transistors (FETs) operate in electrolyte solutions having a wide pH range of 1-13. The FETs have been fabricated using a p-type surface conductive layer, where the diamond surface is exposed directly to the electrolyte solutions. From the drain current-gate voltage (I ds-Vgs) characteristics of the FETs, it appears that the threshold voltages of the FETs are independent of the pH value of the solution. In Cl- ionic solutions, however, the threshold voltages shift approximately 30 mV with a one-order-of-magnitude change of molar concentration of Cl- ions. This sensitivity of the FET to Cl- ion's concrentration is observed in the 10-110-6M range of potassium chloride (KC1) solutions

    Original languageEnglish
    Pages (from-to)2595-2597
    Number of pages3
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume41
    Issue number4 B
    DOIs
    Publication statusPublished - 2002 Apr

    Fingerprint

    Gates (transistor)
    Field effect transistors
    Diamonds
    field effect transistors
    diamonds
    Electrolytes
    electrolytes
    Threshold voltage
    threshold voltage
    potassium chlorides
    Drain current
    Ions
    Potassium
    ions
    sensitivity
    shift
    Electric potential
    electric potential

    Keywords

    • Cl ion
    • Diamond
    • Electrolyte solution
    • Hydrogen termination
    • ISFET
    • Polycrystal

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Cite this

    Effect of Cl- ionic solutions on electrolyte-solution-gate diamond field-effect transistors. / Sakai, Toshikatsu; Araki, Yuta; Kanazawa, Hirofumi; Umezawa, Hitoshi; Tachiki, Minoru; Kawarada, Hiroshi.

    In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 41, No. 4 B, 04.2002, p. 2595-2597.

    Research output: Contribution to journalArticle

    Sakai, Toshikatsu ; Araki, Yuta ; Kanazawa, Hirofumi ; Umezawa, Hitoshi ; Tachiki, Minoru ; Kawarada, Hiroshi. / Effect of Cl- ionic solutions on electrolyte-solution-gate diamond field-effect transistors. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2002 ; Vol. 41, No. 4 B. pp. 2595-2597.
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    AU - Araki, Yuta

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    AU - Umezawa, Hitoshi

    AU - Tachiki, Minoru

    AU - Kawarada, Hiroshi

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