Mahewara RB, Ravangave LS. Effect of copper concentration on structure morphology and optical band gap of spray deposited CZTS thin films . Int. j. res. inf. sci. appl. tech. [Internet]. 2020 May 12 [cited 2026 Aug. 24];4(5):16-25. Available from: https://www.grpublication.com/index.php/ijrisat/article/view/92