Approaching the Radiative Efficiency Limit in Perovskite Solar Cells with Scalable Defect Passivation and Selective Contacts

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This project will focus on using low-cost techniques to develop perovskite solar cells that approach the radiative efficiency limit in order to reach the maximum possible performance for these cells. The radiative efficiency limit of solar cells is the limit at which no photons absorbed by the cell are lost to heat producing defects. In order to achieve this goal, researchers must better understand defects in the perovskite material and invent new ways to passivate, or deactivate, these defects. In order to improve the efficiency and lifetimes of perovskite solar cells, it's important to be able to passivate defects that arise in low-cost manufacturing environments. The team will use novel optical and microscopic probes to provide insight into the defects currently produced during perovskite cell production and then develop scalable layers to add to the solar cell to passivate these defects.