Author’s Accepted Manuscript Effect of Cu 2+ doping on the structural, electronic and optical properties of gahnite: A combined experimental and DFT+U study W.M. Mulwa, B.F. Dejene, M.O. Onani, C.N.M. Ouma PII: S0022-2313(16)31010-9 DOI: http://dx.doi.org/10.1016/j.jlumin.2016.12.008 Reference: LUMIN14423 To appear in: Journal of Luminescence Received date: 1 August 2016 Revised date: 21 November 2016 Accepted date: 8 December 2016 Cite this article as: W.M. Mulwa, B.F. Dejene, M.O. Onani and C.N.M. Ouma, Effect of Cu 2+ doping on the structural, electronic and optical properties o gahnite: A combined experimental and DFT+U study, Journal of Luminescence http://dx.doi.org/10.1016/j.jlumin.2016.12.008 This is a PDF file of an unedited manuscript that has been accepted fo publication. As a service to our customers we are providing this early version o the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain www.elsevier.com/locate/jlumin