From top-down to bottom-up to hybrid nanotechnologies: Road to nanodevices

  • Teo B
  • Sun X
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The current development and future prospects of nanotechnology are discussed with special emphasis on the pros and cons of the "bottom-up'' and "top-down'' approaches to nanotechnology, and the eventual merging of the two, at the scale of about 30 nm in feature size, to form a new "hybrid" technology. At the scale of about 3 nm in feature size, this "hybrid" technology will be challenged by the emerging "supramolecular" and "molecular" technologies epitomized by largescale integration of single-molecule devices. Ultimately the "supramolecular" and "molecular" technologies will yield to "atomic" or "nuclear" technologies at the dimension of below 0.3 nm whereby single-atom, single-electron, single-spin, single-photon devices become realities.

Author-supplied keywords

  • Bottom-up
  • Hybrid nanotechnology
  • Nanoelectronics
  • Nanophotonics
  • Nanospintronics
  • Subnanotechnologies
  • Top-down

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  • Boon K. Teo

  • X. H. Sun

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