| Autor: |
Lammar, Stijn, Van Gompel, Wouter, Lenaers, Stijn, Mertens, Martijn, Boyen, Hans-Gerd, Desta, Derese, Hadipour, Afshin, Lutsen, Laurence, Vanderzande, Dirk, Krishna, Anurag, Abdulraheem, Yaser, Aernouts, Tom, Poortmans, Jef |
| Zdroj: |
Journal of Materials Chemistry C; 6/28/2023, Vol. 11 Issue 24, p8146-8153, 8p |
| Abstrakt: |
The interfaces between a halide perovskite absorber film and its charge transporting layers have been identified as one of the key bottlenecks for achieving high performance and stability. Herein we report a benzothieno[3,2-b]benzothiophene (BTBT) derivative and a carbazole derivative to passivate the interface between the sputtered NiOx and the halide perovskite in p-i-n perovskite solar cells (PSCs). The treatment of the NiOx with the BTBT derivative significantly enhances the open-circuit voltage (Voc), boosting the champion power conversion efficiency (PCE) from 16.6% to 18.6%. We carry out an in-depth analysis of the interface employing a lift-off procedure revealing that the BTBT molecules reside at the bottom interface and successfully suppress a (redox) reaction at this interface. As a result of the improved interface quality, the stability of the PSCs is superior under maximum power point (MPP) conditions and in ambient conditions, retaining 89% of the initial PCE after 250 hours at 25% relative humidity and 95% after 1 hour under continuous MPP tracking (MPPT). [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
