“…large exciton binding energy (60 meV), n-type behavior due to oxygen vacancies, Zn interstitial and antisites [4][5][6]. Group II elements are generally used in modifying the band gap of ZnO [7][8]. Also, transition Metals like Fe, Co and Ni have a technical advantage for optical, magnetic, electrical and electronic properties which is required for fabrication of spintronic and optoelectronic devices [9].…”