Publication date: 17th July 2025
The benefits of vacuum processed perovskite solar cells will be discussed. Co-sublimation of perovskite precursors leads to high efficiency solar cells albeit with somewhat low open circuit voltages. Using a home build setup to probe the photoluminescence of the perovskite films while they are grown on a rotating substrate in a high vacuum chamber allows us to see surprising evolution of the photoluminescence.
We will show the effect of seed-layers on the evolution of the photoluminescence of the perovskite film as well as the addition of passivating agents.
This will be shown for perovskites with different compositions and film thicknesses. The best perovskite are used to prepare thin film solar cells reaching 23 % power conversion efficiency.
This work is done by the postdocs Vladimir Held and Yunseong Chin
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