Perovskite/Silicon Tandem Solar Cells: From Detailed Balance Limit Calculations to Photon Management

Abstract

Abstract Energy conversion efficiency losses and limits of perovskite/silicon tandem solar cells are investigated by detailed balance calculations and photon management. An extended Shockley–Queisser model is used to identify fundamental loss mechanisms and link the losses to the optics of solar cells. Photon management is used to minimize losses and maximize the energy conversion efficiency. The influence of photon management on the solar cell parameters of a perovskite single-junction solar cell and a perovskite/silicon solar cell is discussed in greater details. An optimized solar cell design of a perovskite/silicon tandem solar cell is presented, which allows for the realization of solar cells with energy conversion efficiencies exceeding 32%.

Keywords

• Perovskite solar cell
• Tandem solar cell
• Thermodynamic
• Photon management
• Detailed balance limit