Effects of alloying chalcopyrite CuTlSe2 with Na on the electronic structure and thermoelectric coefficients: DFT investigationK. Djelid, T. Seddik, O. Merabiha, M. Batouche, R. Khenata, A. Bouhemadou, Saleem Ayaz Khan and S. Bin OmranEur. Phys. J. Plus, 137 12 (2022) 1347DOI: https://doi.org/10.1140/epjp/s13360-022-03577-8