Daegu Gyeongbuk Institute of Science and Technology

Scientists in Korea have investigated performance degradation in quantum dot solar cells – an important consideration for a technology that has seen rapid efficiency increases in recent months. The group found surface oxidation of quantum dot material represents a significant threat to longer-term performance and the researchers suggest that an additional layer in the cell could solve the problem.

Scientists at South Korea’s Daegu Gyeongbuk Institute of Science and Technology have set a new efficiency record of 11.4% for a cell based on a copper zinc tin sulfide thin film applied to a flexible substrate.