Figure 2
From: Dual growth mode of boron nitride nanotubes in high temperature pressure laser ablation
(a) Image of cotton-like BNNT web hanging on the collector after laser ablation, (b) FE-SEM image, and (c) HR-TEM image of raw BNNTs (yellow mark is a boron nanoparticle encapsulated at the end of BNNT). (d) Energy electron-loss spectrum of a BNNT shows K edges of boron and nitrogen with π* and σ* peaks attributed to sp2 hybridization. (e) High-resolution XPS spectra of raw BNNTs fitted with Gaussian curves display B 1 s and N 1 s core levels. (f) Raman spectrum of raw BNNTs fitted with Lorentzian curves indicates E2g phonon mode of the hexagonal boron nitride atomic structure.
