Solar Cells To Cure Coal Fever With Quantum Dots

The article discusses recent advancements in solar cell technology, particularly focusing on quantum dot solar cells, which are poised to enhance the solar industry despite political efforts favoring coal. Quantum dots are ultra-small semiconductor particles whose optical properties can be precisely tuned, allowing for improved solar energy conversion. Although early quantum dot solar cells had low efficiencies (around 2.9% in 2010), significant progress has been made, with efficiencies reaching 13.4% by early 2024 due to better understanding of quantum dot connectivity, device structures, and defect reduction. While conventional solar cells already surpass 13.4% efficiency, quantum dots offer the potential to lower manufacturing costs and improve efficiency in multi-material solar cells, making solar power even more economical and scalable. A notable development is the partnership between quantum dot startup UbiQD and First Solar to enhance bifacial solar panels, which capture sunlight on both sides. First Solar estimates that applying a thin quantum dot film on the back side of these panels could boost