Sequential Deposition of Diluted Aqueous SnO₂ Dispersion for Perovskite Solar Cells

Pylnev, Mikhail; Nishikubo, Ryosuke; Ishiwari, Fumitaka et al.

Solar RRL, 2024, 8(15), 2400415

Number of Access:776（2025-08-14 04:33 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/98126

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Title
Sequential Deposition of Diluted Aqueous SnO₂ Dispersion for Perovskite Solar Cells
Creator
ORCID
0000-0001-5689-0864 0000-0001-5689-0864
CreatorName
Pylnev, Mikhail
NRID
1000010909188 1000010909188
ORCID
0000-0002-0533-9180 0000-0002-0533-9180
researchmap permalink
rnishikubo rnishikubo
Scopus Author ID
57193899567 57193899567
CreatorName
Nishikubo, Ryosuke
NRID
1000000635807 1000000635807
ORCID
0000-0002-0200-4510 0000-0002-0200-4510
researchmap permalink
fishiwari fishiwari
Scopus Author ID
24767538500 24767538500
CreatorName
Ishiwari, Fumitaka
NRID
1000060362224 1000060362224
CreatorName
Wakamiya, Atsushi
NRID
1000010362625 1000010362625
ORCID
0000-0001-7429-2200 0000-0001-7429-2200
researchmap permalink
a-saeki a-saeki
Scopus Author ID
7004268947 7004268947
CreatorName
Saeki, Akinori
Subject
diluted dispersion
electron transport layers
lead halide perovskite solar cells
SnO2
Description
Pylnev M., Nishikubo R., Ishiwari F., et al. Sequential Deposition of Diluted Aqueous SnO₂ Dispersion for Perovskite Solar Cells. Solar RRL 8, 2400415 (2024); https://doi.org/10.1002/solr.202400415.
Abstract
The widespread use of tin dioxide (SnO₂) thin films as electron transport layer (ETL) of perovskite solar cells (PSCs) has been facilitated by commercial SnO₂ nanocolloid dispersion. Nevertheless, challenges such as nanoparticle agglomeration have emerged, impacting film quality and interface properties critical for PSC performance. Herein, the efficacy of sequential, multistep spin-coating of repeatedly diluted SnO₂ aqueous suspension as a simple and effective approach to enhance ETL properties is explored. Through systematic experiments using dynamic light scattering, cyclic voltammetry, optical spectroscopy, and photoconductivity, it is demonstrated that the sequential deposition significantly improves the flatness and coverage of SnO₂, leading to improved electron transport and transfer from a perovskite layer. Such a synergetic effect enables to fabricate lead iodide PSC (FAPbI₃, FA: formamidinium) with a power conversion efficiency of 22.99% compared to 20.48% for the conventional 1-step SnO₂ layer. The findings underscore the potential of sequential SnO₂ deposition as a promising technique for robust SnO₂ films of photoelectric conversion devices.
Publisher
John Wiley and Sons Inc
Source Title
Solar RRL
Volume (Issue)
8(15)
Page
2400415
Date of Issued
2024-08-01
Language
English
Handle URL
https://hdl.handle.net/11094/98126
eISSN
2367198X
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1002/solr.202400415
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article