Accepted Manuscript Title: Sb 2 Te3/graphene heterostructure for broadband photodetector: a first-principles calculation at the level of Cooper’s exchange functionals Authors: Abdullahi Lawal, A. Shaari, R. Ahmed, L.S. Taura, L.M. Mohammad, M.C. Idris PII: S0030-4026(18)31337-8 DOI: https://doi.org/10.1016/j.ijleo.2018.09.034 Reference: IJLEO 61473 To appear in: Received date: 25-6-2018 Revised date: 8-9-2018 Accepted date: 9-9-2018 Please cite this article as: Lawal A, Shaari A, Ahmed R, Taura LS, Mohammad LM, M.C. I, Sb 2 Te3/graphene heterostructure for broadband photodetector: a first- principles calculation at the level of Cooper’s exchange functionals, Optik (2018), https://doi.org/10.1016/j.ijleo.2018.09.034 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final 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.