AuthorsIsikgor, Furkan Halis
Subbiah, Anand Selvin
Eswaran, Mathan Kumar
Howells, Calvyn Travis
de Bastiani, Michele
Harrison, George T.
Khan, Jafar Iqbal
Anthopoulos, Thomas D.
De Wolf, Stefaan
KAUST DepartmentChemical Science Program
Computational Physics and Materials Science (CPMS)
KAUST Solar Center (K.S.C.), Division of Physical Sciences and Engineering (P.S.E.), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955–6900, Saudi Arabia
KAUST Solar Center (KSC)
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant NumberOSR-2019-CARF/CCF-3097.
Embargo End Date2022-12-25
Permanent link to this recordhttp://hdl.handle.net/10754/666849
MetadataShow full item record
AbstractDespite impressive power conversion efficiencies (PCEs) reported for lab-scale perovskite solar cells (PSCs), obtaining large-area devices with similar performance remains challenging. Fundamentally, this can largely be attributed to a polarity mismatch between the perovskite-precursor solution and the underlying hydrophobic contact materials, resulting in perovskite films of insufficient quality for scaled devices. Specifically, for p-i-n devices, the commonly used DMF/DMSO co-solvent has a significant polarity mismatch with its underlying hole-transporting layer, PTAA. Here, the role of MAPbI3•solvent adduct interaction with the PTAA surface towards the formation of micro- and nano-scale pinholes is elucidated in detail. Replacing DMSO with NMP in the co-solvent system changes the binding energy profoundly, enabling uniform and dense films over large areas. The PCE of DMF/NMP ink-based devices drops slightly with increasing active device area, from 21.5% (0.1 cm2) to 19.8% (6.8 cm2), in comparison with conventional DMF/DMSO ink. This work opens a pathway towards the scalability of solution-processed perovskite optoelectronic devices.
CitationIsikgor, F. H., Subbiah, A. S., Eswaran, M. K., Howells, C. T., Babayigit, A., De Bastiani, M., … De Wolf, S. (2021). Scaling-up perovskite solar cells on hydrophobic surfaces. Nano Energy, 81, 105633. doi:10.1016/j.nanoen.2020.105633
SponsorsThis publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. OSR-2019-CARF/CCF-3097.