Achromatic lens casting nearly uniform irradiance over MJ solar cells

摘要: The Achromatic Doublet on Glass (ADG) Fresnel lens is a novel concentrator that combines low-dispersion elastomer and high-dispersion plastic to obtain with reduced chromatic aberration, consequently, increased concentration capability. This article summarizes the outcomes of ray-tracing simulations as well experimental results obtained within past two years. In addition, uniformity irradiance profile cast by onto Multi-Junction solar cells analyzed compared classic Silicone (SoG) used benchmark. more uniform achromatic requires lower horizontal current transportation across MJ cell since photocurrent distributions for top middle subcells are similar. It has been experimentally shown that, although Fill Factor (FF) illuminated SoG strongly depends lens-to-cell distance (showing characteristic W-shaped curve), ADG lens, FF remains high at every position. implies higher tolerance not only errors in module assembly but also variations temperature primary lens.