The image above shows metallic nanotubes in green and semiconducting tubes in orange.
Credit: Courtesy of M.S. Arnold et al./Northwestern
Getting the right nanotubes in the right places
Carbon nanotubes could provide the circuitry for the computers of the future. But they can be either semiconducting or metallic, and the difficulty of getting the right type of tube in the right place on a computer chip has so far prevented their commercial use.
Now Northwestern University researchers have developed a way to separate nanotubes by electrical conductivity and by diameter, another property that's important for applications in electronics.
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This document is part of the “How-To Guide for Most Common Measurements” centralized resource portal. This tutorial provides a detailed guide for measurement and device considerations to take temperature measurements using thermocouples. Get an introduction to thermocouples, which are inexpensive sensing devices widely used with PC-based data acquisition systems. Also review some specific thermocouple examples and learn how thermocouples work and ways to integrate them into a data acquisition measurement system.
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