![secret hidden structure paves new way of making more efficient and stable perovskite solar cells](https://utterbuzz.com/wp-content/uploads/2024/07/secret-hidden-structure-paves-new-way-of-making-more-efficient-and-stable-perovskite-solar-cells-640x427.jpg)
Researchers has revealed the existence of surface concavities on individual crystal grains — which are the fundamental blocks — of perovskite thin films, and have unraveled their significant effects on the film properties and reliability. Based on this discovery, the team pioneered a new way of making perovskite solar cells more efficient and stable via a chemo-elimination of these grain surface concavities.