Journal Pre-proof Improved optical properties of ion beam irradiated (K,Na)NbO 3 thin films Radhe Shyam, Apurba Das, Pamu Dobbidi, Fouran Singh, Pargam Vashishtha, Govind Gupta, Srinivasa Rao Nelamarri PII: S0925-8388(20)30157-2 DOI: https://doi.org/10.1016/j.jallcom.2020.153794 Reference: JALCOM 153794 To appear in: Journal of Alloys and Compounds Received Date: 16 October 2019 Revised Date: 7 January 2020 Accepted Date: 9 January 2020 Please cite this article as: R. Shyam, A. Das, P. Dobbidi, F. Singh, P. Vashishtha, G. Gupta, S.R. Nelamarri, Improved optical properties of ion beam irradiated (K,Na)NbO 3 thin films, Journal of Alloys and Compounds (2020), doi: https://doi.org/10.1016/j.jallcom.2020.153794. This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. 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. © 2020 Published by Elsevier B.V.