Design of spectrum splitting solar cell assemblies

Abstract

We used the spectrum splitting method to divide the solar spectrum into three sub-ranges of 400–630nm, 630–800nm and after 800nm respectively. Under the 0.5–6.0 SUN radiation condition, the photo-electrical conversion efficiency of the system with three solar cells has been measured with the result to show that the photo-electric conversion efficiency of 38% is achieved under the typical 2.8 SUN radiation condition. The results given in this work will provide a way to realize a high photo-electric conversion efficiency of the solar system in application.