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The energetics of small zigzag carbon nanotubes at high temperature regime (T=2500 K) is investigated via k-space tight-binding molecular dynamics (TBMD) simulations. It is found that the n dangling atoms at the end of a zigzag tube with 5<n<12 can automatically transform into an (n-1)-member ring at the top, accompanied by the release of a C 2 dimer and the formation of (n-1) pentagons...
A carbon film was deposited on Si substrate from an ethanol liquid phase by electrolysis at low temperature (60 o C) in ambient atmosphere, and various carbon phases in the film were investigated by micro-Raman spectroscopy. Raman spectroscopy analysis confirmed the crystalline diamond structure by the presence of a sharp peak at 1331 cm -1 . Meanwhile, short-chain polyethylene,...
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