uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
On the importance of the band gap bowing in Boron-based III-V ternary alloys
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics.
2007 (English)In: Solid State Communications, ISSN 0038-1098, E-ISSN 1879-2766, Vol. 144, no 5-6, 245-248 p.Article in journal (Refereed) Published
Abstract [en]

The optical band gap bowing of eighteen III-V compound alloys containing boron is calculated by means of a recent phenomenological model [M. Ferhat, Phys. Status Solidi b 241 (2004) R38]. The optical band gap bowing is found to be strong for the all studied III-V boron alloys. In particular, we find that BNSb shows an important optical band gap bowing of 19.78 eV. Parallel to this, we also introduce ab initio pseudopotential plane wave calculations with large relaxed supercells to check the validity of our phenomenological model for BNSb. This gives an optical bowing of 21.19 eV, in fairly good agreement with the model used. Results suggest that the III-V boron alloys are characterized by a strong competition between the volume deformation (b(VD)), charge transfer (b(CE)), and structural relaxation (b(SR)) effects. For the common cation alloys bVD dominates bCE, and bSR is relatively weak; whereas for the common anion alloys, the structural effect (bSR and bVD) appears to control the total optical band gap bowing.

Place, publisher, year, edition, pages
2007. Vol. 144, no 5-6, 245-248 p.
Keyword [en]
optical properties, order-disorder effects
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-142927DOI: 10.1016/j.ssc.2007.08.017ISI: 000250888500015OAI: oai:DiVA.org:uu-142927DiVA: diva2:388619
Available from: 2011-01-18 Created: 2011-01-18 Last updated: 2011-01-18Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Department of Physics
In the same journal
Solid State Communications
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 108 hits
ReferencesLink to record
Permanent link

Direct link