Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/40261
Title: Efficient and Stable Inverted Wide-Bandgap Perovskite Solar Cells and Modules Enabled by Hybrid Evaporation-Solution Method
Authors: Afshord, Amir Zarean
Uzuner, Bahri Eren
Soltanpoor, Wiria
Sedani, Salar H.
AERNOUTS, Tom 
Gunbas, Gorkem
KUANG, Yinghuan 
Yerci, Selcuk
Issue Date: 2023
Publisher: WILEY-V C H VERLAG GMBH
Source: Advanced functional materials, 33 (31) (Art N° 2301695)
Abstract: Wide-bandgap perovskite solar cells (WBG-PSCs), when partnered with Si bottom cells in tandem configuration, can provide efficiencies up to 44%; yet, the development of stable, efficient, and scalable WBG-PSCs is required. Here, the utility of the hybrid evaporation-solution method (HESM) is investigated to meet these demanding requirements via its unique advantages including ease of control and reproducibility. A PbI2/CsBr layer is co-evaporated followed by coating of organic-halide solutions in a green solvent. Bandgaps between 1.55-1.67 eV are systematically screened by varying CsBr and MABr content. Champion efficiencies of 21.06% and 20.35% in cells and 19.83% and 18.73% in mini-modules (16 cm(2)) for perovskites with 1.64 and 1.67 eV bandgaps are achieved, respectively. Additionally, 18.51%-efficient semi-transparent WBG-PSCs are implemented in 4T perovskite/bifacial silicon configuration, reaching a projected power output of 30.61 mW cm(-2) based on PD IEC TS 60904-1-2 (BiFi200) protocol. Despite similar bandgaps achieved by incorporating Br via MABr solution and/or CsBr evaporation, PSCs having a perovskite layer without MABr addition show significantly higher thermal and moisture stability. This study proves scalable, high-performance, and stable WBG-PSCs are enabled by HESM, hence their use in tandems and in emerging applications such as indoor photovoltaics are now within reach.
Notes: Gunbas, G; Yerci, S (corresponding author), Middle East Tech Univ, Ctr Solar Energy Res & Applicat ODTU GUNAM, TR-06800 Ankara, Turkiye.; Gunbas, G; Yerci, S (corresponding author), Middle East Tech Univ, Dept Micro & Nanotechnol, TR-06800 Ankara, Turkiye.; Kuang, YH (corresponding author), Imo Imomec, EnergyVille, Thor Pk 8320, B-3600 Genk, Belgium.; Kuang, YH (corresponding author), Imec, Imo Imomec, Thin Film PV Technol Partner Solliance, Thor Pk 8320, B-3600 Genk, Belgium.; Kuang, YH (corresponding author), Hasselt Univ, Imo Imomec, Martelarenlaan 42, B-3500 Hasselt, Belgium.; Gunbas, G (corresponding author), Middle East Tech Univ, Dept Polymer Sci & Technol, TR-06800 Ankara, Turkiye.; Gunbas, G (corresponding author), Middle East Tech Univ, Dept Chem, TR-06800 Ankara, Turkiye.; Yerci, S (corresponding author), Middle East Tech Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkiye.
ggunbas@metu.edu.tr; yinghuan.kuang@imec.be; syerci@metu.edu.tr
Keywords: 4-terminal tandem solar cells;hybrid deposition method;perovskite solar cells and modules;scalability;stability;thermal co-evaporation;wide-bandgap perovskites
Document URI: http://hdl.handle.net/1942/40261
ISSN: 1616-301X
e-ISSN: 1616-3028
DOI: 10.1002/adfm.202301695
ISI #: 000979944900001
Rights: 2023 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Category: A1
Type: Journal Contribution
Validations: ecoom 2024
Appears in Collections:Research publications

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