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Title: | An Integrated Bulk and Surface Modification Strategy for Gas‐Quenched Inverted Perovskite Solar Cells with Efficiencies Exceeding 22% | Authors: | XIN, Zhang Qiu, Weiming SONG, Wenya Hawash, Zafer Wang, Yaxin Pradhan, Bapi Zhang, Yiyue Naumenko, Denys Amenitsch, Heinz Moons, Ellen MERCKX, Tamara AGUIRRE, Aranzazu Abdulraheem, Yaser AERNOUTS, Tom Zhan, Yiqiang KUANG, Yinghuan Hofkens, Johan POORTMANS, Jef |
Issue Date: | 2022 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | Solar RRL, (Art N° 2200053) | Status: | Early view | Abstract: | Inverted perovskite solar cells (PSCs) prepared by the antisolvent method have achieved power conversion efficiencies (PCEs) of over 23%, but they are not ideal for device upscaling. In contrast, gas-quenched PSCs offer great potential for upscaling, but their performance still lags behind. Herein, the gas-quenched films through both surface and bulk modifications are upgraded. First, a novel surface modifier, benzylammonium thiocyanate, is found to allow remarkably improved surface properties, but the PCE gain is limited by the existence of longitudinally multiple grains. Thus, methylammonium chloride additive as a second modifier to realize monolithic grains is further utilized. Such an integrated strategy enables the average open-circuit voltage of the gas-quenched PSCs to increase from 1.08 to 1.15 V, leading to a champion PCE of 22.3%. Moreover, the unencapsulated device shows negligible degradation after 150 h of maximum power point operation under simulated 1 sun illumination in N-2. | Notes: | Zhan, YQ (corresponding author), Fudan Univ, Sch Informat Sci & Technol SIST, Ctr Micro Nano Syst, Handan 220, Shanghai 200433, Peoples R China.; Poortmans, J (corresponding author), Katholieke Univ Leuven, Dept Elect Engn ESAT, B-3001 Leuven, Belgium.; Kuang, YH; Poortmans, J (corresponding author), IMEC, IMO IMOMEC, B-3600 Genk, Belgium.; Kuang, YH; Poortmans, J (corresponding author), EnergyVille, IMO IMOMEC, B-3600 Genk, Belgium.; Kuang, YH; Poortmans, J (corresponding author), Hasselt Univ, IMO IMOMEC, B-3500 Hasselt, Belgium.; Qiu, WM (corresponding author), IMEC, SAT Dept, B-3001 Leuven, Belgium.; Qiu, WM (corresponding author), Katholieke Univ Leuven, Dept Chem, B-3001 Leuven, Belgium. weiming.qiu@imec.be; yqzhan@fudan.edu.cn; Yinghuan.Kuang@imec.be; Jef.Poortmans@imec.be |
Keywords: | additive engineering; benzylammonium thiocyanate; gas quenching;;inverted p-i-n perovskite solar cells; stabilities; surface treatments | Document URI: | http://hdl.handle.net/1942/37201 | ISSN: | 2367-198X | e-ISSN: | 2367-198X | DOI: | 10.1002/solr.202200053 | ISI #: | WOS:000770000400001 | Rights: | © 2022 Wiley-VCH GmbH | Category: | A3 | Type: | Journal Contribution | Validations: | ecoom 2023 |
Appears in Collections: | Research publications |
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Solar RRL - 2022 - Zhang - An Integrated Bulk and Surface Modification Strategy for Gas‐Quenched Inverted Perovskite Solar.pdf Restricted Access | Published version | 11.5 MB | Adobe PDF | View/Open Request a copy |
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