Revealing loss and degradation mechanisms in metal halide perovskite solar cells
The role of defects and trap states
V.M. Caselli (TU Delft - ChemE/Opto-electronic Materials)
T.J. Savenije – Promotor (TU Delft - ChemE/Opto-electronic Materials)
Ferdinand Grozema – Copromotor (TU Delft - ChemE/Opto-electronic Materials)
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Abstract
For centuries we have relied on fossil fuels to produce energy for our needs, causing significant damage to the environment and our own health. To make an energy transition possible, technology has to step up, providing solutions for cleaner and cheaper energy production. In the field of solar energy, perovskite-based devices can offer a feasible alternative to conventional technologies, involving less energy intensive and cheaper manufacturing processes. Despite the great technological advancements of the past years, open circuit voltage losses and especially poor long-term stability are two of the main bottlenecks that still have to be overcome in order to bring the technology to market. In this thesis we have addressed such issues by investigating the origin and impact of electronic trap states on charge carrier dynamics in perovskite thin films of different composition...