An Interview with Sam Stranks
Chris Gammell, a physicist at Cambridge University and co-founder of Swift Solar, explains the rapid efficiency gains in perovskite solar cells, which have jumped from 3% to over 24% in just a few years. He details the material's unique defect tolerance, low-temperature solution processing, and potential for lightweight, printed tandem cells that could drastically reduce installation costs. Gammell also discusses non-solar applications like LEDs and lasers, while noting that ion migration remains a key stability challenge for commercial viability.