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Performance of solution processable perovskite solar cells under a simulated Mars environment / ROKAS APANAVICIUS

Swansea University Author: ROKAS APANAVICIUS

Abstract

This thesis explores the performance and stability of solution-processable perovskite solar cells, focusing on methylammonium lead iodide (MAPbI₃) and triple cation (Cs0.05(MA0.17FA0.83)0.95Pb(I0.17Br0.13)3) perovskite formulations, under conditions that simulate the extreme environment on Mars. The...

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Published: Swansea University, Wales, UK 2025
Institution: Swansea University
Degree level: Master of Research
Degree name: MSc by Research
Supervisor: Tsoi, W. C.
URI: https://cronfa.swan.ac.uk/Record/cronfa69351
Abstract: This thesis explores the performance and stability of solution-processable perovskite solar cells, focusing on methylammonium lead iodide (MAPbI₃) and triple cation (Cs0.05(MA0.17FA0.83)0.95Pb(I0.17Br0.13)3) perovskite formulations, under conditions that simulate the extreme environment on Mars. The primary goal was to assess how well these perovskite devices perform when subjected to Martian-like temperature fluctuations and humidity variations, with a particular emphasis on their power conversion efficiency and long-term stability. By delving into this unique setting, the research aims to advance the understanding of perovskite solar cells in non-Earth conditions and their potential for space applications.The devices were tested across a wide range of temperatures, from 20 °C to -125 °C, and exposed to varying humidity levels from 10% to 90% relative humidity, mimicking Martian extremes within controlled environmental chambers.The results show that triple cation perovskite solar cells consistently outperform MAPbI₃devices, demonstrating better efficiency and stability during thermal cycling and temperature profiles designed to reflect Jezero Crater on Mars. Interestingly, MAPbI₃devices showed improved stability at temperatures below -50 °C, highlighting their potential under extremely cold conditions. In addition, the triple cation perovskites outperformed MAPbI₃ in humidity tests, exhibiting greater stability, though both types of solar cells experienced significant fluctuations in performance when exposed to high humidity for prolonged periods.Nonetheless, the device degradation caused by extreme temperatures and humidity is a major obstacle. These issues underscore the necessity for further research to optimise device longevity and performance for future space exploration.
Item Description: A selection of content is redacted or is partially redacted from this thesis to protect sensitive and personal information.
Keywords: Solar cells, perovskite, triple cation, MAPbI3, Mars.
College: Faculty of Science and Engineering