Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/44442
Title: | Multifaceted Characterization Methodology for Understanding Nonidealities in Perovskite Solar Cells: A Passivation Case Study | Authors: | PARION, Jonathan RAMESH, Santhosh SUBRAMANIAM, Sownder Vrielinck, Henk DUERINCKX, Filip Radhakrishnan, Hariharsudan Sivaramakrishnan POORTMANS, Jef Lauwaert, Johan VERMANG, Bart |
Issue Date: | 2024 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | Solar Rrl, | Status: | Early view | Abstract: | A multifaceted characterization approach is proposed, aiming to establish a link between nanoscale electrical properties and macroscale device characteristics. Current-voltage (I-V) measurements are combined with admittance spectroscopy (AS) and deep-level transient spectroscopy (DLTS) for the analysis of charge-related performance losses with time-of-flight secondary-ion mass spectrometry to complete the understanding of ionic motion in the device. This is applied to the study of surface treatment in perovskite solar cells, which implements several strategies to improve band alignment, perovskite grain growth, and chemical passivation. An increase of both open-circuit voltage (Voc) and fill factor of respectively 90 mV and 11% is shown after surface treatment, with an absolute efficiency increase of 4%. AS measurements, coupled with a lumped elements model, rule out the impact of transport layers as the origin of the performance improvement, rather pointing toward a reduction in ionic resistance in the perovskite bulk. Analysis of the DLTS response yields an activation energy of 0.41 eV, which is likely related to the same ionic mechanism discovered with AS. Finally, both of these techniques enable to show that the surface treatment main contribution is to reduce ion-related recombination of charge carriers. Characterization is used for the study of surface treatment in perovskite solar cells. Current-voltage measurements show a 90 mV increase in open-circuit voltage, 11 % increase in fill-factor and 4 % increase in efficiency. Capacitance-based measurements show an increase in ionic resistance in the perovskite bulk and an activation energy of 0.41 eV, pointing toward a reduction in ion-assisted charge carrier recombination.image (c) 2024 WILEY-VCH GmbH | Notes: | Parion, J; Vermang, B (corresponding author), Imec Div IMOMEC, Thorpk 8320, B-3600 Genk, Belgium.; Parion, J; Vermang, B (corresponding author), Hasselt Univ, Wetenschapspk 1, B-3590 Diepenbeek, Belgium.; Parion, J; Vermang, B (corresponding author), EnergyVille, Thorpk 8320, B-3600 Genk, Belgium.; Parion, J (corresponding author), Univ Ghent, Dept Elect & Informat Syst, Technol Pk 126, B-9052 Zwijnaarde, Belgium. jonathan.parion@imec.be; bart.vermang@imec.be |
Keywords: | characterizations;passivations;perovskite solar cells;surface treatments | Document URI: | http://hdl.handle.net/1942/44442 | ISSN: | 2367-198X | e-ISSN: | 2367-198X | DOI: | 10.1002/solr.202400529 | ISI #: | 001315790100001 | Rights: | 2024 Wiley-VCH GmbH | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Solar RRL - 2024 - Parion - Multifaceted Characterization Methodology for Understanding Nonidealities in Perovskite Solar.pdf Restricted Access | Early view | 961.95 kB | Adobe PDF | View/Open Request a copy |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.