Accepted Manuscript Title: Dual-energy application of NiO: Electrochemical and Photovoltaic properties Authors: Ahsan Ahmed, Sultan Ahmed, Rahul Johari, M. Parvaz, M. Rafat PII: S0030-4026(18)31715-7 DOI: https://doi.org/10.1016/j.ijleo.2018.10.195 Reference: IJLEO 61821 To appear in: Received date: 23 September 2018 Accepted date: 30 October 2018 Please cite this article as: Ahmed A, Ahmed S, Johari R, Parvaz M, Rafat M, Dual- energy application of NiO: Electrochemical and Photovoltaic properties, Optik (2018), https://doi.org/10.1016/j.ijleo.2018.10.195 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.