New Nanowires Are Just a Few Atoms Thick

News   Dec 05, 2017 | Original Story by Larry Hardesty for Massachusetts Institute of Technology.

 
New Nanowires Are Just a Few Atoms Thick

A slight mismatch between the hexagonal structures of molybdenum disulfide and tungsten diselenide creates a strain that can be released by the formation of a "5|7 dislocation," in which two hexagons collapse to form a pentagon and a heptagon. Reactions with molybdenum disulfide in the environment cause the dislocation to move deeper into the tungsten diselenide, drawing a nanowire of molybdenum disulfide behind it. Credit: Courtesy of the researchers.

 
 
 

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