Spontaneous Formation of Robust Two-Dimensional Perovskite Phases

Shaun Tan; Meng-Chen Shih; Yongli Liu; Seung-Gu Choi; Yifan Dong; Joo-Hong Lee; Ilhan Yavuz; Bryon Larson; So Yeon Park; Tim Kodalle; Ruiqi Zhang; Matthias Grotevent; Yu-Kuan Lin; Hua Zhu; Vladimir Bulovic; Carolin Sutter-Fella; Nam-Gyu Park; Matthew Beard; Jin-Wook Lee; Kai Zhu; Moungi Bawendi

doi:10.1126/science.adr1334

Spontaneous Formation of Robust Two-Dimensional Perovskite Phases

Shaun Tan, Meng-Chen Shih, Yongli Liu, Seung-Gu Choi, Yifan Dong, Joo-Hong Lee, Ilhan Yavuz, Bryon Larson, So Yeon Park, Tim Kodalle, Ruiqi Zhang, Matthias Grotevent, Yu-Kuan Lin, Hua Zhu, Vladimir Bulovic, Carolin Sutter-Fella, Nam-Gyu Park, Matthew Beard, Jin-Wook Lee, Kai ZhuMoungi Bawendi

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

1 Scopus Citations

Abstract

The two-dimensional on three-dimensional (2D/3D) perovskite bilayer heterostructure can improve the stability and performance of perovskite solar cells. We show that the 2D/3D perovskite stack in a device evolves dynamically during its end-of-life decomposition. Initially phase-pure 2D interlayers can evolve differently, resulting in different device stabilities. We show that a robust 2D interlayer can be formed using mixed solvents to regulate its crystallinity and phase purity. The resulting 2D/3D devices achieved 25.9% efficiency and had good durability, retaining 91% of their initial performance after 1074 hours at 85 degrees C using maximum power point tracking.

Original language	American English
Pages (from-to)	639-645
Number of pages	7
Journal	Science
Volume	388
Issue number	6747
DOIs	https://doi.org/10.1126/science.adr1334
State	Published - 2025

NREL Publication Number

NREL/JA-5900-92989

Keywords

crystallization
intermediate phase
perovskite
solar cells
two-dimensional

Access to Document

10.1126/science.adr1334

Cite this

Tan, S., Shih, M.-C., Liu, Y., Choi, S.-G., Dong, Y., Lee, J.-H., Yavuz, I., Larson, B., Park, S. Y., Kodalle, T., Zhang, R., Grotevent, M., Lin, Y.-K., Zhu, H., Bulovic, V., Sutter-Fella, C., Park, N.-G., Beard, M., Lee, J.-W., ... Bawendi, M. (2025). Spontaneous Formation of Robust Two-Dimensional Perovskite Phases. Science, 388(6747), 639-645. https://doi.org/10.1126/science.adr1334

@article{2df29c858ba94b8ba9a96d719d2d8b2c,

title = "Spontaneous Formation of Robust Two-Dimensional Perovskite Phases",

abstract = "The two-dimensional on three-dimensional (2D/3D) perovskite bilayer heterostructure can improve the stability and performance of perovskite solar cells. We show that the 2D/3D perovskite stack in a device evolves dynamically during its end-of-life decomposition. Initially phase-pure 2D interlayers can evolve differently, resulting in different device stabilities. We show that a robust 2D interlayer can be formed using mixed solvents to regulate its crystallinity and phase purity. The resulting 2D/3D devices achieved 25.9\% efficiency and had good durability, retaining 91\% of their initial performance after 1074 hours at 85 degrees C using maximum power point tracking.",

keywords = "crystallization, intermediate phase, perovskite, solar cells, two-dimensional",

author = "Shaun Tan and Meng-Chen Shih and Yongli Liu and Seung-Gu Choi and Yifan Dong and Joo-Hong Lee and Ilhan Yavuz and Bryon Larson and Park, \{So Yeon\} and Tim Kodalle and Ruiqi Zhang and Matthias Grotevent and Yu-Kuan Lin and Hua Zhu and Vladimir Bulovic and Carolin Sutter-Fella and Nam-Gyu Park and Matthew Beard and Jin-Wook Lee and Kai Zhu and Moungi Bawendi",

year = "2025",

doi = "10.1126/science.adr1334",

language = "American English",

volume = "388",

pages = "639--645",

journal = "Science",

issn = "0036-8075",

publisher = "American Association for the Advancement of Science",

number = "6747",

}

Tan, S, Shih, M-C, Liu, Y, Choi, S-G, Dong, Y, Lee, J-H, Yavuz, I, Larson, B, Park, SY, Kodalle, T, Zhang, R, Grotevent, M, Lin, Y-K, Zhu, H, Bulovic, V, Sutter-Fella, C, Park, N-G, Beard, M, Lee, J-W, Zhu, K & Bawendi, M 2025, 'Spontaneous Formation of Robust Two-Dimensional Perovskite Phases', Science, vol. 388, no. 6747, pp. 639-645. https://doi.org/10.1126/science.adr1334

TY - JOUR

T1 - Spontaneous Formation of Robust Two-Dimensional Perovskite Phases

AU - Tan, Shaun

AU - Shih, Meng-Chen

AU - Liu, Yongli

AU - Choi, Seung-Gu

AU - Dong, Yifan

AU - Lee, Joo-Hong

AU - Yavuz, Ilhan

AU - Larson, Bryon

AU - Park, So Yeon

AU - Kodalle, Tim

AU - Zhang, Ruiqi

AU - Grotevent, Matthias

AU - Lin, Yu-Kuan

AU - Zhu, Hua

AU - Bulovic, Vladimir

AU - Sutter-Fella, Carolin

AU - Park, Nam-Gyu

AU - Beard, Matthew

AU - Lee, Jin-Wook

AU - Zhu, Kai

AU - Bawendi, Moungi

PY - 2025

Y1 - 2025

N2 - The two-dimensional on three-dimensional (2D/3D) perovskite bilayer heterostructure can improve the stability and performance of perovskite solar cells. We show that the 2D/3D perovskite stack in a device evolves dynamically during its end-of-life decomposition. Initially phase-pure 2D interlayers can evolve differently, resulting in different device stabilities. We show that a robust 2D interlayer can be formed using mixed solvents to regulate its crystallinity and phase purity. The resulting 2D/3D devices achieved 25.9% efficiency and had good durability, retaining 91% of their initial performance after 1074 hours at 85 degrees C using maximum power point tracking.

AB - The two-dimensional on three-dimensional (2D/3D) perovskite bilayer heterostructure can improve the stability and performance of perovskite solar cells. We show that the 2D/3D perovskite stack in a device evolves dynamically during its end-of-life decomposition. Initially phase-pure 2D interlayers can evolve differently, resulting in different device stabilities. We show that a robust 2D interlayer can be formed using mixed solvents to regulate its crystallinity and phase purity. The resulting 2D/3D devices achieved 25.9% efficiency and had good durability, retaining 91% of their initial performance after 1074 hours at 85 degrees C using maximum power point tracking.

KW - crystallization

KW - intermediate phase

KW - perovskite

KW - solar cells

KW - two-dimensional

U2 - 10.1126/science.adr1334

DO - 10.1126/science.adr1334

M3 - Article

SN - 0036-8075

VL - 388

SP - 639

EP - 645

JO - Science

JF - Science

IS - 6747

ER -

Spontaneous Formation of Robust Two-Dimensional Perovskite Phases

Abstract

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Keywords

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