Logic circuits based on carbon nanotubes

A. Bachtold*, P. Hadley, T. Nakanishi, C. Dekker

*Corresponding author for this work

    Research output: Contribution to journalArticle

    Abstract

    We demonstrate logic circuits with field-effect transistors based on single carbon nanotubes. A new technique is used for achieving local gates in nanotube field-effect transistors that provide excellent capacitive coupling between the gate and nanotube, enabling the transistor to be ambipolar. The transistors show favorable device characteristics such as a high gain, a large on-off ratio, and room-temperature operation. Importantly, it also allows for the integration of multiple devices on a single chip. Indeed, we demonstrate 1-, 2-, and 3-transistor circuits that exhibit a wide range of digital logic operations such as an inverter, a logic NOR, and an AC ring oscillator.

    Original languageEnglish
    Pages (from-to)42-46
    Number of pages5
    JournalPhysica / E
    Volume16
    Issue number1
    DOIs
    Publication statusPublished - Jan 2003

    Keywords

    • Electronic transport
    • Logic circuits
    • Nanotube

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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