Journal Pre-proof Dispersive optical constants and electrical properties of nanocrystalline CuInS 2 thin films prepared by chemical spray pyrolysis Phindani Dube, Albert O. Juma, Cosmas M. Muiva PII: S0272-8842(19)33428-5 DOI: https://doi.org/10.1016/j.ceramint.2019.11.235 Reference: CERI 23604 To appear in: Ceramics International Received Date: 15 August 2019 Revised Date: 26 November 2019 Accepted Date: 26 November 2019 Please cite this article as: P. Dube, A.O. Juma, C.M. Muiva, Dispersive optical constants and electrical properties of nanocrystalline CuInS 2 thin films prepared by chemical spray pyrolysis, Ceramics International (2019), doi: https://doi.org/10.1016/j.ceramint.2019.11.235. 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. © 2019 Published by Elsevier Ltd.