Improvement in Structural and Optical Properties of ZnFe2O3-δ in Nano Structured Materials with Fe2O3 Concentration. IJPAP [Internet]. 2025 Jan. 21 [cited 2026 May 16];63(1):77-81. Available from: https://or.niscpr.res.in/index.php/IJPAP/article/view/13592