Clusters of Atoms of Copper and Irridium and Their Influence on Recombination Properties of Silicon Journal title: International Journal of Multidisciplinary Research and Analysis Authors: Sherzod Axmadovich Mahmudov, Johongir Zokirjonovich Mirzaraimov, Avaz Karimjonovich Rafikov Subject(s): Biological Sciences, Economics, Education, Engineering, Mathematics, Social Sciences, Technological Change, Health science