Carbon Nanotubes with a Memory

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This image shows (a) the schematic structure of the flash-memory device and (b) a transmission electron microscope image of the deviceacutes layered structure (the carbon-nanotube layer is labeled as quotCNTquot).
This image shows (a) the schematic structure of the flash-memory device and (b) a transmission electron microscope image of the device's layered structure (the carbon-nanotube layer is labeled as "CNT").

Carbon nanotubes have successfully been made into a variety of nanoscale circuit components, including transistors, inverters, and switches. Now, a pair of scientists has made a rough, yet promising, flash memory device out of carbon nanotubes. The device is a long way from a finished, marketable product, but it nonetheless represents a significant step in the drive to incorporate carbon nanotubes into mainstream electronics.


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