SKM 2023 – scientific programme
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 17: Poster Session I
CPP 17.37: Poster
Monday, March 27, 2023, 18:00–20:00, P3
PbS Quantum Dot Solar Cells for Space Applications — •Jasper Ebel1, Huaying Zhong1, and Peter Müller-Buschbaum1,2 — 1TUM School of Natural Sciences, Chair for Functional Materials, Garching, Germany — 2MLZ, TUM, Garching, Germany
A key performance parameter for photovoltaics (PVs) on space missions is the power-to-weight ratio since launch costs increase drastically with the mass-to-orbit. During the last decades, several promising, light-weight and flexible alternatives to current silicon- and GaAs-based technology have emerged, such as perovskite, organic or colloidal quantum dot (CQD) based solar cells. Lead sulfide (PbS) CQD solar cells are especially interesting due to their easily size-tunable bandgap range in the infrared regime, allowing for the exploitation of previously unused parts of the solar spectrum. This in conjunction with ligand, solvent and interface-customizable opto-electronic properties makes QD solar cells a promising candidate for tandem solar cells reaching high efficiencies. Here, by mimicking heat and illumination cycles experienced in orbit, we analyse the performance and structural integrity of PbS CQD solar cells under lab conditions to explore the viability of their use for space applications. Repeating this experiment for various solvents, we test a range of devices to investigate their effects on the stability.