| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Kim, Seok-Soon Kim
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (1/1 displayed)
Places of action
| Organizations | Location | People |
|---|
article
Beyond fullerenes: Indacenodithienol-based organic charge transport layer towards upscaling of perovskite solar cells
Abstract
Phenyl-C61-butyric acid methyl ester (PCBM) is ubiquitously used as an electron-transport layer in low-cost p-i-n perovskite solar cells (PeSCs). Seldom reported, PCBM brings tremendous challenges with respect to scalable manufacturing methods due to its aggregation tendencies which also impact mechanical integrity and stability.Here, we report a non-fullerene indacenodithienol (IDT)-based molecule 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2’,3’-d’]-s-indaceno[1,2-b:5,6-b’] dithiophene orITIC as an electron-transport layer (ETL) replacement to PCBM in PeSCs processed under ambient conditions without active humidity or temperature control and with the use of only non-halogenated solvents. While similar power conversion efficiencies were achieved, significant differences were observed in morphology and film formation between PCBM and ITIC processed with the use of both spin-coating and industry-relevant slot-die coating method. PCBM exhibited strong tendencies to aggregate and cause non-uniform film formation, especially pronounced in slot-die coated films. ITIC formed nanofibriller morphology and led to uniform film formation through both the coating methods. Mechanical testing revealed ITIC exhibited a 16-fold increase in fracture energy compared to PCBM. Exposure of unsealed devices to ambient conditions over long time clearly revealed stability implications of PCBM and ITIC.Thus, our results demonstrates the issue with PCBM and highlights the potential of IDT-based molecules offering superior properties and upscaling compatibility in comparison to PCBM. Based on this case study, a summary of recently emerged non-fullerene IDT-based molecules from the field of organic solar cells is given and their scope in PeSCs as both electron and hole-transport layer is discussed.