Abstract
The electronic structure of boron (B) and BxOywas studied using x-ray photoelectron spectroscopy (XPS). These are nonmetallic materials which possess extreme hardness, and intriguing solid-state structures constructed by a building block of twelve boron atoms in an icosahedron. An XPS shift in non-metallic materials was caused by a change in occupancy of electronic states of impurities and charge trapping defects. The results show that the β-rhombohedral boron have a surface Fermi level located at 0.7±0.1 eV from its valence band maximum (VBM) and a binding energy for its B 1s core level at 187.2 eV from VBM.
Original language | English |
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Pages (from-to) | 3527-3534 |
Number of pages | 8 |
Journal | Journal of Applied Physics |
Volume | 95 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Apr 2004 |
ASJC Scopus subject areas
- General Physics and Astronomy