Kunert, HWGovender, MMachatine, AGJMwakikunga, Bonex WNiyongabo, P2014-09-222014-09-222014-02Kunert, H.W, Govender, M, Machatine, A.G.J, Mwakikunga, B.W and Niyongabo, P. 2014. Optical selection rules and scattering processes in rocksalt wide band gap ZnO. Physica Status Solidi A, vol. 211(2), pp 435- 4391862-6300http://onlinelibrary.wiley.com/doi/10.1002/pssa.201300187/pdfhttp://hdl.handle.net/10204/7685Copyright: 2014 Wiley-VCH Verlag. This is the post print version of the work. The definitive version is published in Physica Status Solidi A, vol. 221(2), pp 435-439At sufficiently high pressures, wurtzite structure zinc oxide (W-ZnO) can be transformed to the cubic rocksalt (R-ZnO) structure. The R-ZnO exhibits semiconductor behavior with an indirect wide band gap of inline image. The maximum valence band is found far away from the center of the Brillouin zone (BZ) at high symmetry point L and line S, depending on the pressure. The unusual electronic band structure (EBS) of the R-ZnO leads to several direct and indirect optical transitions which find applications in ultraviolet optoelectronic devices. We have investigated radiative and non-radiative symmetry restricted selection rules, as well as inter- and intra-valley scattering processes.enExcitonsGroup theoryScattering processesZinc oxideArticleKunert, H., Govender, M., Machatine, A., Mwakikunga, B. W., & Niyongabo, P. (2014). Optical selection rules and scattering processes in rocksalt wide band gap ZnO. http://hdl.handle.net/10204/7685Kunert, HW, M Govender, AGJ Machatine, Bonex W Mwakikunga, and P Niyongabo "Optical selection rules and scattering processes in rocksalt wide band gap ZnO." (2014) http://hdl.handle.net/10204/7685Kunert H, Govender M, Machatine A, Mwakikunga BW, Niyongabo P. Optical selection rules and scattering processes in rocksalt wide band gap ZnO. 2014; http://hdl.handle.net/10204/7685.TY - Article AU - Kunert, HW AU - Govender, M AU - Machatine, AGJ AU - Mwakikunga, Bonex W AU - Niyongabo, P AB - At sufficiently high pressures, wurtzite structure zinc oxide (W-ZnO) can be transformed to the cubic rocksalt (R-ZnO) structure. The R-ZnO exhibits semiconductor behavior with an indirect wide band gap of inline image. The maximum valence band is found far away from the center of the Brillouin zone (BZ) at high symmetry point L and line S, depending on the pressure. The unusual electronic band structure (EBS) of the R-ZnO leads to several direct and indirect optical transitions which find applications in ultraviolet optoelectronic devices. We have investigated radiative and non-radiative symmetry restricted selection rules, as well as inter- and intra-valley scattering processes. DA - 2014-02 DB - ResearchSpace DP - CSIR KW - Excitons KW - Group theory KW - Scattering processes KW - Zinc oxide LK - https://researchspace.csir.co.za PY - 2014 SM - 1862-6300 T1 - Optical selection rules and scattering processes in rocksalt wide band gap ZnO TI - Optical selection rules and scattering processes in rocksalt wide band gap ZnO UR - http://hdl.handle.net/10204/7685 ER -