Limiting Efficiencies of Novel Solar Cell Concepts in Space

In this work we study the limiting efficiency in space environmental conditions of three novel solar cell concepts (hot carrier solar cells, multiple exciton generation solar cells and intermediate band solar cells) and how this limiting efficiency is impacted by the temperature and degradation due to radiation. Comparisons are made with state of the art triple-junction solar cells whose performance is taken as reference. In the last section of the work we briefly review the status related to the experimental achievements of these cells to date.