Towards a Better Mechanistic Understanding of the Degradation Processes of Perovskite Solar Cells

............................................................................................................................... 2 INTRODUCTION: ................................................................................................................... 4 PEROVSKITE DEGRADATION LITERATURE REVIEW: ................................................ 5 EXPERIMENTAL DETAILS: ............................................................................................... 10 SAMPLE PREPARATION ............................................................................................................................... 10 PEROVSKITE PRECURSOR PREPARATION ............................................................................................... 10 SOLAR CELL FABRICATION ........................................................................................................................ 10 MEASUREMENTS AND DEGRADATION SET-UP ...................................................................................... 11 RESULTS AND DISCUSSION: ............................................................................................. 16 METHODOLOGY .......................................................................................................................................... 16 EFFECTS ON THE ABSORPTION SPECTRUM ............................................................................................ 17 EFFECTS ON THE CRYSTAL STRUCTURE .................................................................................................. 18 EFFECTS ON THE JV CHARACTERISTICS ................................................................................................. 20 INTERACTIONS BETWEEN RESPONSES .................................................................................................... 22 DISCUSSION ................................................................................................................................................... 23 CONCLUSION: ...................................................................................................................... 25 ACKNOWLEDGEMENTS: .................................................................................................... 25 REFERENCES: ....................................................................................................................... 26 APPENDIX A .......................................................................................................................... 28