Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 47, 2013
Previous Article Next Article

Spectroscopic properties of crystalline elemental boron and the implications on B11C–CBC

Author affiliations

Abstract

Elemental boron is a complicated material that involves a variety of phases with puzzling structures that are still controversial to this day. The allotropes of solid elemental boron include six crystalline phases (α-rhombohedral, β-rhombohedral, α-tetragonal, β-tetragonal, γ-orthorhombic, and α-Ga type), amorphous phases, and nanoscale structures. In the present work, the electronic structure and spectroscopic properties [X-ray absorption near edge structure (XANES) and optical dielectric functions] of the six crystalline phases were studied via the ab initio orthogonalized linear combination of atomic orbitals (OLCAO) method. The calculated XANES and dielectric functions of the α- and β-rhombohedral phases agree well with experiment. Based on this agreement, we predict the XANES spectra and dielectric functions for the other four crystalline phases. Each of the calculated XANES spectra of the five phases that have icosahedral units or clusters of icosahedra show a characteristic set of peak features in the energy range from 190 to 215 eV. These characteristic features were also observed in the XANES spectra of the icosahedron-containing B11C–CBC, a typical boron-rich compound.

Graphical abstract: Spectroscopic properties of crystalline elemental boron and the implications on B11C–CBC

Back to tab navigation

Article information


Submitted
22 Aug 2013
Accepted
10 Oct 2013
First published
14 Oct 2013

RSC Adv., 2013,3, 25374-25387
Article type
Paper

Spectroscopic properties of crystalline elemental boron and the implications on B11C–CBC

L. Wang, Y. Mo, P. Rulis and W. Y. Ching, RSC Adv., 2013, 3, 25374
DOI: 10.1039/C3RA44586K

Social activity

Search articles by author

Spotlight

Advertisements