Two-dimensional perovskitoids enhance stability in perovskite solar cells

Cheng Liu; Yi Yang; Hao Chen; Ioannis Spanopoulos; Abdulaziz S.R. Bati; Isaiah W. Gilley; Jianhua Chen; Aidan Maxwell; Badri Vishal; Robert P. Reynolds; Taylor E. Wiggins; Zaiwei Wang; Chuying Huang; Jared Fletcher; Yuan Liu; Lin X. Chen; Stefaan De Wolf; Bin Chen; Ding Zheng; Tobin J. Marks; Antonio Facchetti; Edward H. Sargent; Mercouri G. Kanatzidis

doi:10.1038/s41586-024-07764-8

Two-dimensional perovskitoids enhance stability in perovskite solar cells

Cheng Liu, Yi Yang, Hao Chen, Ioannis Spanopoulos, Abdulaziz S.R. Bati, Isaiah W. Gilley, Jianhua Chen, Aidan Maxwell, Badri Vishal, Robert P. Reynolds, Taylor E. Wiggins, Zaiwei Wang, Chuying Huang, Jared Fletcher, Yuan Liu, Lin X. Chen, Stefaan De Wolf, Bin Chen, Ding Zheng^*, Tobin J. Marks^*Antonio Facchetti^*, Edward H. Sargent^*, Mercouri G. Kanatzidis^*

^*Corresponding author for this work

Chemistry

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

145 Scopus citations

Abstract

Two-dimensional (2D) and three-dimensional (3D) perovskite heterostructures have played a key role in advancing the performance of perovskite solar cells^1,2. However, the migration of cations between 2D and 3D layers results in the disruption of octahedral networks, leading to degradation in performance over time^3,4. We hypothesized that perovskitoids, with robust organic–inorganic networks enabled by edge- and face-sharing, could impede ion migration. We explored a set of perovskitoids of varying dimensionality and found that cation migration within perovskitoid–perovskite heterostructures was suppressed compared with the 2D–3D perovskite case. Increasing the dimensionality of perovskitoids improves charge transport when they are interfaced with 3D perovskite surfaces—this is the result of enhanced octahedral connectivity and out-of-plane orientation. The 2D perovskitoid (A6BfP)₈Pb₇I₂₂ (A6BfP: N-aminohexyl-benz[f]-phthalimide) provides efficient passivation of perovskite surfaces and enables uniform large-area perovskite films. Devices based on perovskitoid–perovskite heterostructures achieve a certified quasi-steady-state power conversion efficiency of 24.6% for centimetre-area perovskite solar cells. We removed the fragile hole transport layers and showed stable operation of the underlying perovskitoid–perovskite heterostructure at 85 °C for 1,250 h for encapsulated large-area devices in ambient air.

Original language	English (US)
Pages (from-to)	359-364
Number of pages	6
Journal	Nature
Volume	633
Issue number	8029
DOIs	https://doi.org/10.1038/s41586-024-07764-8
State	Published - Sep 12 2024

Funding

This work is partially supported by award 70NANB19H005 from the US Department of Commerce, National Institute of Standards and Technology as part of the Center for Hierarchical Materials Design (CHiMaD). M.G.K. was supported by DOE BES grant no. DE-SC0024422 (fundamental studies on metal halides) and T.J.M. by ONR award no. N00014-20-1-2116. This work made use of the SPID, EPIC, Keck-II and NUFAB facilities of Northwestern University\u2019s NUANCE Center, which has received support from the SHyNE Resource (NSF ECCS-2025633), the International Institute of Nanotechnology, Northwestern University and Northwestern\u2019s MRSEC programs (NSF DMR-1720139, NSF DMR-2308691). A.S.R.B. acknowledges support from King Abdullah University of Science and Technology (KAUST) through the Ibn Rushd Postdoctoral Fellowship Award.

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10.1038/s41586-024-07764-8

Cite this

Liu, C., Yang, Y., Chen, H., Spanopoulos, I., Bati, A. S. R., Gilley, I. W., Chen, J., Maxwell, A., Vishal, B., Reynolds, R. P., Wiggins, T. E., Wang, Z., Huang, C., Fletcher, J., Liu, Y., Chen, L. X., De Wolf, S., Chen, B., Zheng, D., ... Kanatzidis, M. G. (2024). Two-dimensional perovskitoids enhance stability in perovskite solar cells. Nature, 633(8029), 359-364. https://doi.org/10.1038/s41586-024-07764-8

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title = "Two-dimensional perovskitoids enhance stability in perovskite solar cells",

abstract = "Two-dimensional (2D) and three-dimensional (3D) perovskite heterostructures have played a key role in advancing the performance of perovskite solar cells1,2. However, the migration of cations between 2D and 3D layers results in the disruption of octahedral networks, leading to degradation in performance over time3,4. We hypothesized that perovskitoids, with robust organic–inorganic networks enabled by edge- and face-sharing, could impede ion migration. We explored a set of perovskitoids of varying dimensionality and found that cation migration within perovskitoid–perovskite heterostructures was suppressed compared with the 2D–3D perovskite case. Increasing the dimensionality of perovskitoids improves charge transport when they are interfaced with 3D perovskite surfaces—this is the result of enhanced octahedral connectivity and out-of-plane orientation. The 2D perovskitoid (A6BfP)8Pb7I22 (A6BfP: N-aminohexyl-benz[f]-phthalimide) provides efficient passivation of perovskite surfaces and enables uniform large-area perovskite films. Devices based on perovskitoid–perovskite heterostructures achieve a certified quasi-steady-state power conversion efficiency of 24.6\% for centimetre-area perovskite solar cells. We removed the fragile hole transport layers and showed stable operation of the underlying perovskitoid–perovskite heterostructure at 85 °C for 1,250 h for encapsulated large-area devices in ambient air.",

author = "Cheng Liu and Yi Yang and Hao Chen and Ioannis Spanopoulos and Bati, \{Abdulaziz S.R.\} and Gilley, \{Isaiah W.\} and Jianhua Chen and Aidan Maxwell and Badri Vishal and Reynolds, \{Robert P.\} and Wiggins, \{Taylor E.\} and Zaiwei Wang and Chuying Huang and Jared Fletcher and Yuan Liu and Chen, \{Lin X.\} and \{De Wolf\}, Stefaan and Bin Chen and Ding Zheng and Marks, \{Tobin J.\} and Antonio Facchetti and Sargent, \{Edward H.\} and Kanatzidis, \{Mercouri G.\}",

note = "Publisher Copyright: {\textcopyright} The Author(s), under exclusive licence to Springer Nature Limited 2024.",

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doi = "10.1038/s41586-024-07764-8",

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Liu, C, Yang, Y, Chen, H, Spanopoulos, I, Bati, ASR, Gilley, IW, Chen, J, Maxwell, A, Vishal, B, Reynolds, RP, Wiggins, TE, Wang, Z, Huang, C, Fletcher, J, Liu, Y, Chen, LX, De Wolf, S, Chen, B, Zheng, D, Marks, TJ, Facchetti, A, Sargent, EH & Kanatzidis, MG 2024, 'Two-dimensional perovskitoids enhance stability in perovskite solar cells', Nature, vol. 633, no. 8029, pp. 359-364. https://doi.org/10.1038/s41586-024-07764-8

TY - JOUR

T1 - Two-dimensional perovskitoids enhance stability in perovskite solar cells

AU - Liu, Cheng

AU - Yang, Yi

AU - Chen, Hao

AU - Spanopoulos, Ioannis

AU - Bati, Abdulaziz S.R.

AU - Gilley, Isaiah W.

AU - Chen, Jianhua

AU - Maxwell, Aidan

AU - Vishal, Badri

AU - Reynolds, Robert P.

AU - Wiggins, Taylor E.

AU - Wang, Zaiwei

AU - Huang, Chuying

AU - Fletcher, Jared

AU - Liu, Yuan

AU - Chen, Lin X.

AU - De Wolf, Stefaan

AU - Chen, Bin

AU - Zheng, Ding

AU - Marks, Tobin J.

AU - Facchetti, Antonio

AU - Sargent, Edward H.

AU - Kanatzidis, Mercouri G.

PY - 2024/9/12

Y1 - 2024/9/12

N2 - Two-dimensional (2D) and three-dimensional (3D) perovskite heterostructures have played a key role in advancing the performance of perovskite solar cells1,2. However, the migration of cations between 2D and 3D layers results in the disruption of octahedral networks, leading to degradation in performance over time3,4. We hypothesized that perovskitoids, with robust organic–inorganic networks enabled by edge- and face-sharing, could impede ion migration. We explored a set of perovskitoids of varying dimensionality and found that cation migration within perovskitoid–perovskite heterostructures was suppressed compared with the 2D–3D perovskite case. Increasing the dimensionality of perovskitoids improves charge transport when they are interfaced with 3D perovskite surfaces—this is the result of enhanced octahedral connectivity and out-of-plane orientation. The 2D perovskitoid (A6BfP)8Pb7I22 (A6BfP: N-aminohexyl-benz[f]-phthalimide) provides efficient passivation of perovskite surfaces and enables uniform large-area perovskite films. Devices based on perovskitoid–perovskite heterostructures achieve a certified quasi-steady-state power conversion efficiency of 24.6% for centimetre-area perovskite solar cells. We removed the fragile hole transport layers and showed stable operation of the underlying perovskitoid–perovskite heterostructure at 85 °C for 1,250 h for encapsulated large-area devices in ambient air.

AB - Two-dimensional (2D) and three-dimensional (3D) perovskite heterostructures have played a key role in advancing the performance of perovskite solar cells1,2. However, the migration of cations between 2D and 3D layers results in the disruption of octahedral networks, leading to degradation in performance over time3,4. We hypothesized that perovskitoids, with robust organic–inorganic networks enabled by edge- and face-sharing, could impede ion migration. We explored a set of perovskitoids of varying dimensionality and found that cation migration within perovskitoid–perovskite heterostructures was suppressed compared with the 2D–3D perovskite case. Increasing the dimensionality of perovskitoids improves charge transport when they are interfaced with 3D perovskite surfaces—this is the result of enhanced octahedral connectivity and out-of-plane orientation. The 2D perovskitoid (A6BfP)8Pb7I22 (A6BfP: N-aminohexyl-benz[f]-phthalimide) provides efficient passivation of perovskite surfaces and enables uniform large-area perovskite films. Devices based on perovskitoid–perovskite heterostructures achieve a certified quasi-steady-state power conversion efficiency of 24.6% for centimetre-area perovskite solar cells. We removed the fragile hole transport layers and showed stable operation of the underlying perovskitoid–perovskite heterostructure at 85 °C for 1,250 h for encapsulated large-area devices in ambient air.

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ER -

Two-dimensional perovskitoids enhance stability in perovskite solar cells

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CCDC 2362696: Experimental Crystal Structure Determination

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Two-dimensional perovskitoids enhance stability in perovskite solar cells

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UN SDGs

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CCDC 2362696: Experimental Crystal Structure Determination

CCDC 2362701: Experimental Crystal Structure Determination

CCDC 2362702: Experimental Crystal Structure Determination

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