SoylentNews
SoylentNews is people
https://soylentnews.org/

Title    Three Atom Thick Nanowires Constructed
Date    Tuesday April 29 2014, @12:58PM
Author    martyb
Topic   
from the Moore-smaller-wires dept.
https://soylentnews.org/article.pl?sid=14/04/29/1121220

broken writes:

Junhao Lin from Vanderbilt University et al. have created three atom wide nanowires and published his results as a letter in the journal Nature Nanotechnology. Full text is behind a paywall but an Article Preview is available.

He created these nanowires using scanning transmission electron microscopy (STEM). The wires were made from transition-metal dichalcogenides (TMDC), chosen because they form monolayers (much like graphene). Neither the article nor the Nature Article Preview specify precisely which TMDCs were constructed, but mentions molybdenum, tungsten, sulfur, and selenium as example constituents of chemicals in this group with the appropriate electrical properties. Some amazing images in the linked Article Preview suggest these wires are on the order of 0.6nm in width.

Transistors and flash memory have already been created using this class of material so it looks like complete integrated circuits using this material are a possibility. The article suggests that this technique may be adapted to construction using electron beam lithography, increasing its potential for future commercial feasibility.

Links

  1. "broken" - http://soylentnews.org/~broken/
  2. "three atom wide nanowires" - http://www.newswise.com/articles/how-to-create-nanowires-only-three-atoms-wide-with-an-electron-beam
  3. "Article Preview" - http://www.nature.com/nnano/journal/vaop/ncurrent/full/nnano.2014.81.html
  4. "STEM" - http://en.wikipedia.org/wiki/Scanning_transmission_electron_microscope
  5. "TMDC" - http://en.wikipedia.org/wiki/Chalcogenide#Transition_metal_chalcogenides
  6. "amazing images" - http://www.nature.com/nnano/journal/vaop/ncurrent/fig_tab/nnano.2014.81_F4.html
  7. "electron beam lithography" - http://en.wikipedia.org/wiki/Electron_beam_lithography

© Copyright 2024 - SoylentNews, All Rights Reserved

printed from SoylentNews, Three Atom Thick Nanowires Constructed on 2024-03-29 05:36:48