Structure–Property Relationships for Linear, Extended, and Branched Alkane Ammonium Iodide Derivatives as Interface Passivators for Narrow-Bandgap Lead–Tin Perovskite Solar Cells
Lana M. Kessels, Nicolas Daub, Guus J. W. Aalbers, Laura Bellini, Willemijn H. M. Remmerswaal, Martijn M. Wienk, René A. J. Janssen · 2026
Read Structure–Property Relationships for Linear, Extended, and Branched Alkane Ammonium Iodide Derivatives as Interface Passivators for Narrow-Bandgap Lead–Tin Perovskite Solar Cells by Lana M. Kessels, Nicolas Daub, Guus J. W. Aalbers, Laura Bellini, Willemijn H. M. Remmerswaal, Martijn M. Wienk, René A. J. Janssen (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13266695.txt.
Description
Lana M Kessels and the team map how molecular shape affects interface layers in lead-tin perovskite solar cells (2026). Passivating compounds cut energy losses at a key interface, yet gains often bring instability. Ammonium iodide variants with different chain lengths and branching were tested. Light-output and device tracking ran over a month.
All variants reduced interface losses. Short-chain primary double-ended compounds balanced passivation with charge extraction best. Longer and branched versions stabilised voltage but blocked current, cutting performance. Secondary end groups encouraged surface crystals that weakened passivation. Mixing small with large compounds is proposed as a promising direction.
Catalog record
| CREATOR | Lana M. Kessels, Nicolas Daub, Guus J. W. Aalbers, Laura Bellini, Willemijn H. M. Remmerswaal, Martijn M. Wienk, René A. J. Janssen |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 48 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |