JinkoSolar has set a new world record efficiency of 27.79% for n-type TOPCon solar cells, utilizing innovative technologies such as ultrathin silicon oxide tunneling layer and doped polysilicon passivated contacts. They are aiming to achieve 28% efficiency by 2028. In addition, the company achieved a 33.84% power conversion efficiency for a perovskite-silicon tandem solar cell based on n-type wafers. These advancements, verified by reputable institutions, showcase JinkoSolar's commitment to pushing the boundaries of solar energy efficiency and could have significant implications for climate solutions experts.