| Autor: |
Azmi, Randi, Utomo, Drajad Satrio, Vishal, Badri, Zhumagali, Shynggys, Dally, Pia, Risqi, Andi Muhammad, Prasetio, Adi, Ugur, Esma, Cao, Fangfang, Imran, Imil Fadli, Said, Ahmed Ali, Pininti, Anil Reddy, Subbiah, Anand Selvin, Aydin, Erkan, Xiao, Chuanxiao, Seok, Sang Il, De Wolf, Stefaan |
| Zdroj: |
Nature; Apr2024, Vol. 628 Issue 8006, p93-98, 6p |
| Abstrakt: |
Defects at the top and bottom interfaces of three-dimensional (3D) perovskite photoabsorbers diminish the performance and operational stability of perovskite solar cells owing to charge recombination, ion migration and electric-field inhomogeneities1–5. Here we demonstrate that long alkyl amine ligands can generate near-phase-pure 2D perovskites at the top and bottom 3D perovskite interfaces and effectively resolve these issues. At the rear-contact side, we find that the alkyl amine ligand strengthens the interactions with the substrate through acid–base reactions with the phosphonic acid group from the organic hole-transporting self-assembled monolayer molecule, thus regulating the 2D perovskite formation. With this, inverted perovskite solar cells with double-side 2D/3D heterojunctions achieved a power conversion efficiency of 25.6% (certified 25.0%), retaining 95% of their initial power conversion efficiency after 1,000 h of 1-sun illumination at 85 °C in air.A study presents a technique to sandwich 3D perovskite with 2D perovskites at the top and bottom, improving the performance and stability of perovskite solar cells. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink