SPLTRAK Abstract Submission
Transparent Oxides as a Protective Encapsulant for Perovskite Solar Cells in Low Earth Orbit
Kyle M Crowley, Kaitlyn VanSant, Timothy J Peshek, Lyndsey B McMillon-Brown
NASA Glenn Research Center, Cleveland, OH, United States

Perovskite Solar Cells (PSCs) are a low-cost, light-weight emerging technology for photovoltaic energy generation in space.  Low earth orbit (LEO), the region home to most artificial satellites, contains atomic oxygen (AO), which presents a challenge for PSC durability. In this study, various metal oxide films are deposited onto triple cation PSCs as encapsulation layers. Cells are then exposed to AO via a plasma etching system, in order to simulate the LEO environment up to a period of 5 years. PSC electrical performance is then benchmarked at various exposure intervals. This study successfully illustrates the effectiveness of metal oxides as AO barrier layers and explores the practicality of utilizing PSCs for future space photovoltaic systems.