2022. EFFECT OF INDIUM VACANCY POINT DEFECT ON THE STRUCTURAL, ELECTRONIC AND OPTICAL PROPERTIES OF DOUBLE PEROVSKITE HALIDE Cs2InSbCl6: EFFECT OF INDIUM VACANCY POINT DEFECT ON THE PROPERTIES OF DOUBLE PEROVSKITE HALIDE. Nigerian Journal of Technology. 41, 5 (Nov. 2022), 854–861. DOI:https://doi.org/10.4314/njt.v41i5.5.