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Carbon-based organic semiconductors have many advantages, like easy large-area preparation on flexible substrates, large variety of materials, and low cost. Recent estimates have shown that organic solar cells have the lowest CO2 footprint of any energy-generating technology. Despite these advantages, many challenges remain before organic solar cells can achieve broad commercial impact. In this talk, I will present an overview over the key features of solid-state organic solar cells and discuss recent progress in the field, leading to lab efficiencies approaching 20% and module efficiencies exceeding 10%. Furthermore, I will discuss key aspects of mass production and application scenarios.
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