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Title: | Scaling-up perovskite solar cells on hydrophobic surfaces | Authors: | Isikgor, Furkan H. Subbiah, Anand S. Eswaran, Mathan K. Howells, Calvyn T. BABAYIGIT, Aslihan De Bastiani, Michele Yengel, Emre Liu, Jiang Furlan, Francesco Harrison, George T. Zhumagali, Shynggys Khan, Jafar, I Laquai, Frederic Anthopoulos, Thomas D. McCulloch, Iain Schwingenschloegl, Udo De Wolf, Stefaan |
Issue Date: | 2021 | Publisher: | ELSEVIER | Source: | NANO ENERGY, 81 (Art N° 105633) | 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 holetransporting layer, PTAA. Here, the role of MAPbI(3).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 cm(2)) to 19.8% (6.8 cm(2)), in comparison with conventional DMF/DMSO ink. This work opens a pathway towards the scalability of solution-processed perovskite optoelectronic devices. | Notes: | Isikgor, FH; De Wolf, S (corresponding author), King Abdullah Univ Sci & Technol KAUST, KAUST Solar Ctr KSC, Div Phys Sci & Engn PSE, Thuwal 239556900, Saudi Arabia. furkan.isikgor@kaust.edu.sa; stefaan.dewolf@kaust.edu.sa |
Keywords: | Perovskite solar cell;Scalable;Large area;Hydrophobic PTAA substrate;Binding energy;Pinholes | Document URI: | http://hdl.handle.net/1942/36258 | ISSN: | 2211-2855 | e-ISSN: | 2211-3282 | DOI: | 10.1016/j.nanoen.2020.105633 | ISI #: | WOS:000620327800002 | Rights: | 2020 Elsevier Ltd. All rights reserved | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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