A research team from HKUST has improved perovskite solar cell performance by eliminating surface concavities on individual crystal grains, making this promising technology more commercially viable.
The researchers discovered that these concavities significantly impact the film’s properties and reliability. To address this issue, they developed a new method to remove these grain surface concavities using a surfactant molecule. This resulted in perovskite cells with improved efficiency retention under various testing conditions.
Perovskite solar cells have great potential to replace silicon solar cells due to their high power conversion efficiencies and low material costs. However, concerns about long-term stability remain. By understanding the impact of grain surface concavities on perovskite performance, researchers can now develop more efficient and stable devices.
The team’s findings show that removing these concavities leads to significant improvements in perovskite cell performance. This breakthrough has important implications for the commercial viability of this promising technology.
Source: https://scitechdaily.com/game-changing-discovery-chinese-scientists-have-discovered-a-secret-hidden-structure-in-perovskite-solar-cells/