Skip to main content

Research Repository

Advanced Search

Electronic band structure of highly mismatched GaN1?xSbx alloys in a broad composition range

Segercrantz, N.; Yu, K.M.; Ting, M.; Sarney, W.L.; Svensson, S.P.; Novikov, S.V.; Foxon, C.T.; Walukiewicz, W.

Electronic band structure of highly mismatched GaN1?xSbx alloys in a broad composition range Thumbnail


Authors

N. Segercrantz

K.M. Yu

M. Ting

W.L. Sarney

S.P. Svensson

C.T. Foxon

W. Walukiewicz



Abstract

In this letter, we study the optical properties of GaN1?xSbx thin films. Films with an Sb fraction up to 42% were synthesized by alternating GaN-GaSb layers at a constant temperature of 325 ?C. The measured optical absorption data of the films are interpreted using a modified band anticrossing model that is applicable to highly mismatched alloys such as GaN1?xSbx in the entire composition range. The presented model allows us to more accurately determine the band gap as well as the band
edges over the entire composition range thereby providing means for determining the composition for, e.g., efficient spontaneous photoelectrochemical cell applications

Citation

Segercrantz, N., Yu, K., Ting, M., Sarney, W., Svensson, S., Novikov, S., …Walukiewicz, W. (in press). Electronic band structure of highly mismatched GaN1−xSbx alloys in a broad composition range. Applied Physics Letters, 107(14), Article 142104. https://doi.org/10.1063/1.4932592

Journal Article Type Article
Acceptance Date Sep 25, 2015
Online Publication Date Oct 6, 2015
Deposit Date Jul 8, 2016
Publicly Available Date Mar 29, 2024
Journal Applied Physics Letters
Print ISSN 0003-6951
Electronic ISSN 1077-3118
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 107
Issue 14
Article Number 142104
DOI https://doi.org/10.1063/1.4932592
Public URL https://nottingham-repository.worktribe.com/output/764541
Publisher URL http://scitation.aip.org/content/aip/journal/apl/107/14/10.1063/1.4932592
Additional Information Electronic band structure of highly mismatched GaN1-xSbx alloys in a broad composition range. N. Segercrantz1,2,a), K.M. Yu, M. Ting, W.L. Sarney, S.P. Svensson, S.V. Novikov, C.T. Foxon and W. Walukiewicz. Appl. Phys. Lett. 107, 142104 (2015); http://dx.doi.org/10.1063/1.4932592

Files




You might also like



Downloadable Citations