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Scaling-up perovskite solar cells on hydrophobic surfaces
- Source :
- Nano Energy. 81:105633
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- Despite 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.
- Subjects :
- Materials science
Inkwell
Renewable Energy, Sustainability and the Environment
Polarity (physics)
Binding energy
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Adduct
Chemical engineering
Hydrophobic surfaces
General Materials Science
Electrical and Electronic Engineering
0210 nano-technology
Layer (electronics)
Scaling
Perovskite (structure)
Subjects
Details
- ISSN :
- 22112855
- Volume :
- 81
- Database :
- OpenAIRE
- Journal :
- Nano Energy
- Accession number :
- edsair.doi...........8307d74e94401830d407e9087b06883a