High-throughput compositional mapping of triple-cation tin–lead perovskites for high-efficiency solar cells

Rajendra Kumar Gunasekaran; Jina Jung; Sung Woong Yang; Jungchul Yun; Yeonghun Yun; Devthade Vidyasagar; Won Chang Choi; Chang Lyoul Lee; Jun Hong Noh; Dong Hoe Kim; Sangwook Lee

doi:10.1002/inf2.12393

High-throughput compositional mapping of triple-cation tin–lead perovskites for high-efficiency solar cells

Rajendra Kumar Gunasekaran, Jina Jung, Sung Woong Yang, Jungchul Yun, Yeonghun Yun, Devthade Vidyasagar, Won Chang Choi, Chang Lyoul Lee, Jun Hong Noh, Dong Hoe Kim, Sangwook Lee

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Mixed tin–lead perovskites suffer from structural instability and rapid tin oxidation; thus, the investigation of their optimal composition ranges is important to address these inherent weaknesses. The critical role of triple cations in mixed Sn–Pb iodides is studied by performing a wide range of compositional screenings over mechanochemically synthesized bulk and solution-processed thin films. A ternary phase map of FA (Sn_0.6Pb_0.4)I₃, MA(Sn_0.6Pb_0.4)I₃, and Cs(Sn_0.6Pb_0.4)I₃ is formed, and a promising composition window of (FA_0.6−xMA_0.4Cs_x)Sn_0.6Pb_0.4I₃ (0 ≤ x ≤ 0.1) is demonstrated through phase, photoluminescence, and stability evaluations. Solar cell performance and chemical stability across the targeted compositional space are investigated, and FA_0.55MA_0.4Cs_0.05Sn_0.6Pb_0.4I₃ with strain-relaxed lattices, reduced defect densities, and improved oxidation stability is demonstrated. The inverted perovskite solar cells with the optimal composition demonstrate a power conversion efficiency of over 22% with an open-circuit voltage of 0.867 V, which corresponds to voltage loss of 0.363 V, promising for the development of narrow-bandgap perovskite solar cells.

Original language	English
Article number	e12393
Journal	InfoMat
Volume	5
Issue number	4
DOIs	https://doi.org/10.1002/inf2.12393
Publication status	Published - 2023 Apr

Bibliographical note

Funding Information:
Korea Electric Power Corporation, Grant/Award Number: R20XO02‐1; National Research Foundation of Korea, Grant/Award Number: NRF‐2019R1A2C1084010 Funding information

Funding Information:
This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT (NRF‐2019R1A2C1084010), and the Korea Electric Power Corporation (Grant number: R20XO02‐1).

Publisher Copyright:
© 2023 The Authors. InfoMat published by UESTC and John Wiley & Sons Australia, Ltd.

Keywords

compositional engineering
mixed tin–lead iodides
narrow-bandgap perovskites
perovskite solar cells
strain relaxation
ternary phase mapping

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Materials Science (miscellaneous)
Surfaces, Coatings and Films
Materials Chemistry

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10.1002/inf2.12393

Cite this

@article{ca19d664395d4e989d57489988ef94a9,

title = "High-throughput compositional mapping of triple-cation tin–lead perovskites for high-efficiency solar cells",

abstract = "Mixed tin–lead perovskites suffer from structural instability and rapid tin oxidation; thus, the investigation of their optimal composition ranges is important to address these inherent weaknesses. The critical role of triple cations in mixed Sn–Pb iodides is studied by performing a wide range of compositional screenings over mechanochemically synthesized bulk and solution-processed thin films. A ternary phase map of FA (Sn0.6Pb0.4)I3, MA(Sn0.6Pb0.4)I3, and Cs(Sn0.6Pb0.4)I3 is formed, and a promising composition window of (FA0.6−xMA0.4Csx)Sn0.6Pb0.4I3 (0 ≤ x ≤ 0.1) is demonstrated through phase, photoluminescence, and stability evaluations. Solar cell performance and chemical stability across the targeted compositional space are investigated, and FA0.55MA0.4Cs0.05Sn0.6Pb0.4I3 with strain-relaxed lattices, reduced defect densities, and improved oxidation stability is demonstrated. The inverted perovskite solar cells with the optimal composition demonstrate a power conversion efficiency of over 22% with an open-circuit voltage of 0.867 V, which corresponds to voltage loss of 0.363 V, promising for the development of narrow-bandgap perovskite solar cells.",

keywords = "compositional engineering, mixed tin–lead iodides, narrow-bandgap perovskites, perovskite solar cells, strain relaxation, ternary phase mapping",

author = "Gunasekaran, {Rajendra Kumar} and Jina Jung and Yang, {Sung Woong} and Jungchul Yun and Yeonghun Yun and Devthade Vidyasagar and Choi, {Won Chang} and Lee, {Chang Lyoul} and Noh, {Jun Hong} and Kim, {Dong Hoe} and Sangwook Lee",

note = "Funding Information: Korea Electric Power Corporation, Grant/Award Number: R20XO02‐1; National Research Foundation of Korea, Grant/Award Number: NRF‐2019R1A2C1084010 Funding information Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT (NRF‐2019R1A2C1084010), and the Korea Electric Power Corporation (Grant number: R20XO02‐1). Publisher Copyright: {\textcopyright} 2023 The Authors. InfoMat published by UESTC and John Wiley & Sons Australia, Ltd.",

year = "2023",

month = apr,

doi = "10.1002/inf2.12393",

language = "English",

volume = "5",

journal = "InfoMat",

issn = "2567-3165",

publisher = "John Wiley and Sons Ltd",

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T1 - High-throughput compositional mapping of triple-cation tin–lead perovskites for high-efficiency solar cells

AU - Gunasekaran, Rajendra Kumar

AU - Jung, Jina

AU - Yang, Sung Woong

AU - Yun, Jungchul

AU - Yun, Yeonghun

AU - Vidyasagar, Devthade

AU - Choi, Won Chang

AU - Lee, Chang Lyoul

AU - Noh, Jun Hong

AU - Kim, Dong Hoe

AU - Lee, Sangwook

N1 - Funding Information: Korea Electric Power Corporation, Grant/Award Number: R20XO02‐1; National Research Foundation of Korea, Grant/Award Number: NRF‐2019R1A2C1084010 Funding information Funding Information: This research was supported by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT (NRF‐2019R1A2C1084010), and the Korea Electric Power Corporation (Grant number: R20XO02‐1). Publisher Copyright: © 2023 The Authors. InfoMat published by UESTC and John Wiley & Sons Australia, Ltd.

PY - 2023/4

Y1 - 2023/4

N2 - Mixed tin–lead perovskites suffer from structural instability and rapid tin oxidation; thus, the investigation of their optimal composition ranges is important to address these inherent weaknesses. The critical role of triple cations in mixed Sn–Pb iodides is studied by performing a wide range of compositional screenings over mechanochemically synthesized bulk and solution-processed thin films. A ternary phase map of FA (Sn0.6Pb0.4)I3, MA(Sn0.6Pb0.4)I3, and Cs(Sn0.6Pb0.4)I3 is formed, and a promising composition window of (FA0.6−xMA0.4Csx)Sn0.6Pb0.4I3 (0 ≤ x ≤ 0.1) is demonstrated through phase, photoluminescence, and stability evaluations. Solar cell performance and chemical stability across the targeted compositional space are investigated, and FA0.55MA0.4Cs0.05Sn0.6Pb0.4I3 with strain-relaxed lattices, reduced defect densities, and improved oxidation stability is demonstrated. The inverted perovskite solar cells with the optimal composition demonstrate a power conversion efficiency of over 22% with an open-circuit voltage of 0.867 V, which corresponds to voltage loss of 0.363 V, promising for the development of narrow-bandgap perovskite solar cells.

AB - Mixed tin–lead perovskites suffer from structural instability and rapid tin oxidation; thus, the investigation of their optimal composition ranges is important to address these inherent weaknesses. The critical role of triple cations in mixed Sn–Pb iodides is studied by performing a wide range of compositional screenings over mechanochemically synthesized bulk and solution-processed thin films. A ternary phase map of FA (Sn0.6Pb0.4)I3, MA(Sn0.6Pb0.4)I3, and Cs(Sn0.6Pb0.4)I3 is formed, and a promising composition window of (FA0.6−xMA0.4Csx)Sn0.6Pb0.4I3 (0 ≤ x ≤ 0.1) is demonstrated through phase, photoluminescence, and stability evaluations. Solar cell performance and chemical stability across the targeted compositional space are investigated, and FA0.55MA0.4Cs0.05Sn0.6Pb0.4I3 with strain-relaxed lattices, reduced defect densities, and improved oxidation stability is demonstrated. The inverted perovskite solar cells with the optimal composition demonstrate a power conversion efficiency of over 22% with an open-circuit voltage of 0.867 V, which corresponds to voltage loss of 0.363 V, promising for the development of narrow-bandgap perovskite solar cells.

KW - compositional engineering

KW - mixed tin–lead iodides

KW - narrow-bandgap perovskites

KW - perovskite solar cells

KW - strain relaxation

KW - ternary phase mapping

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U2 - 10.1002/inf2.12393

DO - 10.1002/inf2.12393

M3 - Article

AN - SCOPUS:85146334761

SN - 2567-3165

VL - 5

JO - InfoMat

JF - InfoMat

IS - 4

M1 - e12393

ER -

High-throughput compositional mapping of triple-cation tin–lead perovskites for high-efficiency solar cells

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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