Journal Pre-proof Investigation of the electrical properties of conductive polymers by the DRS and RPE techniques Fatima Zohra Bourib, Douniazad Mezdour, Mohamed Tabellout PII: S0169-4332(19)32323-2 DOI: https://doi.org/10.1016/j.apsusc.2019.143535 Reference: APSUSC 143535 To appear in: Applied Surface Science Received date: 20 March 2019 Revised date: 6 July 2019 Accepted date: 30 July 2019 Please cite this article as: F.Z. Bourib, D. Mezdour and M. Tabellout, Investigation of the electrical properties of conductive polymers by the DRS and RPE techniques, Applied Surface Science(2019), https://doi.org/10.1016/j.apsusc.2019.143535 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.