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

Kyungpook National University
Gwangju Institute of Science and Technology
Korea University

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

35 Scopus citations

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
State	Published - Apr 2023

Keywords

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

Access to Document

10.1002/inf2.12393

Cite this

@article{1fe0ff9118d04939b2465bf7e8fd5b9a,

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 = "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",

number = "4",

}

TY - JOUR

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

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

UR - https://www.scopus.com/pages/publications/85146334761

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

Keywords

Access to Document

Other files and links

Fingerprint

Cite this