EELS measurements in single wall Boron Nitride nanotubes

Abstract

We present here the results of an electron energy loss spectroscopy (EELS) study in scanning transmission electron microscopy (STEM) on boron nitride nanotubes (BN-NTs). The low and core-loss regions have been analyzed to provide by the same technique a combined information about chemical bonding in the different materials in the sample and the electronic properties of individual BN-NTs. In particular, we deduce an optical gap value of about 5.8 eV for single walled nanotubes, which is independent on diameter

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