Jasim, F.A. and A.A.Hassan, T. 2024. Study the Structural and Optical Properties (Energy Gap) of Polythiophene/MWCNT/SnO2 Nanocomposite as an NO2 Gas Sensor. Iraqi Journal of Physics. 22, 4 (Dec. 2024), 79–87. DOI:https://doi.org/10.30723/ijp.v22i4.1181.