Study the growth process and interface properties of Cu2ZnSnS4 solar cells fabricated by magnetron sputtering

In this project, solar cells made from earth abundant materials, Copper-Zinc-Tin-Sulfide were fabricated. Several new strategies were developed to boost the energy conversion efficiency, including a high conductive and transparent ITO window layer prepared at low temperature for CZTS solar cells, a novel precursor stacking and optimised sulphurisation process, and interface engineering by introducing ultra-violet generated ozone treatment. With all these efforts, efficiency of above 5.5% for pure CZTS was achieved.