The Effect of Antisolvent Treatment on the Growth of 2D/3D Tin Perovskite Films for Solar Cells

Ganghong Min; Robert J. E. Westbrook; Meihuizi Jiang; Margherita Taddei; Ang Li; Thomas Webb; Sanjayan Sathasivam; Amanz Azaden; Robert G. Palgrave; David S. Ginger; Thomas J. Macdonald; Saif A. Haque

doi:10.1021/acsenergylett.4c02745

The Effect of Antisolvent Treatment on the Growth of 2D/3D Tin Perovskite Films for Solar Cells

Ganghong Min, Robert J. E. Westbrook, Meihuizi Jiang, Margherita Taddei, Ang Li, Thomas Webb, Sanjayan Sathasivam, Amanz Azaden, Robert G. Palgrave, David S. Ginger, Thomas J. Macdonald, Saif A. Haque

London Centre for Energy Engineering (LCEE), School of Engineering, London South Bank University, London SE1 0AA, U.K

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

1 Downloads (Pure)

Abstract

Antisolvent treatment is used in the fabrication of perovskite films to control grain growth during spin coating. We study widely incorporated aromatic hydrocarbons and aprotic ethers, discussing the origin of their performance differences in 2D/3D Sn perovskite (PEA0.2FA0.8SnI3) solar cells. Among the antisolvents that we screen, diisopropyl ether yields the highest power conversion efficiency in solar cells. We use a combination of optical and structural characterization techniques to reveal that this improved performance originates from a higher concentration of 2D phase, distributed evenly throughout the 2D/3D Sn perovskite film, leading to better crystallinity. This redistribution of the 2D phase, as a result of diisopropyl ether antisolvent treatment, has the combined effect of decreasing the Sn4+ defect density and background hole density, leading to devices with improved open-circuit voltage, short-circuit current, and power conversion efficiency.

Original language	English
Pages (from-to)	254-262
Number of pages	9
Journal	ACS Energy Letters
Volume	10
Issue number	1
Early online date	17 Dec 2024
DOIs	https://doi.org/10.1021/acsenergylett.4c02745
Publication status	E-pub ahead of print - 17 Dec 2024
Externally published	Yes

Access to Document

10.1021/acsenergylett.4c02745

min-et-al-2024-the-effect-of-antisolvent-treatment-on-the-growth-of-2d-3d-tin-perovskite-films-for-solar-cellsFinal published version, 3.43 MBLicence: CC BY 4.0

Cite this

Min, G., Westbrook, R. J. E., Jiang, M., Taddei, M., Li, A., Webb, T., Sathasivam, S., Azaden, A., Palgrave, R. G., Ginger, D. S., Macdonald, T. J., & Haque, S. A. (2024). The Effect of Antisolvent Treatment on the Growth of 2D/3D Tin Perovskite Films for Solar Cells. ACS Energy Letters, 10(1), 254-262. Advance online publication. https://doi.org/10.1021/acsenergylett.4c02745

@article{9235f11e2be44573a185a0797f4c3810,

title = "The Effect of Antisolvent Treatment on the Growth of 2D/3D Tin Perovskite Films for Solar Cells",

abstract = "Antisolvent treatment is used in the fabrication of perovskite films to control grain growth during spin coating. We study widely incorporated aromatic hydrocarbons and aprotic ethers, discussing the origin of their performance differences in 2D/3D Sn perovskite (PEA0.2FA0.8SnI3) solar cells. Among the antisolvents that we screen, diisopropyl ether yields the highest power conversion efficiency in solar cells. We use a combination of optical and structural characterization techniques to reveal that this improved performance originates from a higher concentration of 2D phase, distributed evenly throughout the 2D/3D Sn perovskite film, leading to better crystallinity. This redistribution of the 2D phase, as a result of diisopropyl ether antisolvent treatment, has the combined effect of decreasing the Sn4+ defect density and background hole density, leading to devices with improved open-circuit voltage, short-circuit current, and power conversion efficiency.",

author = "Ganghong Min and Westbrook, {Robert J. E.} and Meihuizi Jiang and Margherita Taddei and Ang Li and Thomas Webb and Sanjayan Sathasivam and Amanz Azaden and Palgrave, {Robert G.} and Ginger, {David S.} and Macdonald, {Thomas J.} and Haque, {Saif A.}",

year = "2024",

month = dec,

day = "17",

doi = "10.1021/acsenergylett.4c02745",

language = "English",

volume = "10",

pages = "254--262",

journal = "ACS Energy Letters",

issn = "2380-8195",

publisher = "American Chemical Society",

number = "1",

}

TY - JOUR

T1 - The Effect of Antisolvent Treatment on the Growth of 2D/3D Tin Perovskite Films for Solar Cells

AU - Min, Ganghong

AU - Westbrook, Robert J. E.

AU - Jiang, Meihuizi

AU - Taddei, Margherita

AU - Li, Ang

AU - Webb, Thomas

AU - Sathasivam, Sanjayan

AU - Azaden, Amanz

AU - Palgrave, Robert G.

AU - Ginger, David S.

AU - Macdonald, Thomas J.

AU - Haque, Saif A.

PY - 2024/12/17

Y1 - 2024/12/17

N2 - Antisolvent treatment is used in the fabrication of perovskite films to control grain growth during spin coating. We study widely incorporated aromatic hydrocarbons and aprotic ethers, discussing the origin of their performance differences in 2D/3D Sn perovskite (PEA0.2FA0.8SnI3) solar cells. Among the antisolvents that we screen, diisopropyl ether yields the highest power conversion efficiency in solar cells. We use a combination of optical and structural characterization techniques to reveal that this improved performance originates from a higher concentration of 2D phase, distributed evenly throughout the 2D/3D Sn perovskite film, leading to better crystallinity. This redistribution of the 2D phase, as a result of diisopropyl ether antisolvent treatment, has the combined effect of decreasing the Sn4+ defect density and background hole density, leading to devices with improved open-circuit voltage, short-circuit current, and power conversion efficiency.

AB - Antisolvent treatment is used in the fabrication of perovskite films to control grain growth during spin coating. We study widely incorporated aromatic hydrocarbons and aprotic ethers, discussing the origin of their performance differences in 2D/3D Sn perovskite (PEA0.2FA0.8SnI3) solar cells. Among the antisolvents that we screen, diisopropyl ether yields the highest power conversion efficiency in solar cells. We use a combination of optical and structural characterization techniques to reveal that this improved performance originates from a higher concentration of 2D phase, distributed evenly throughout the 2D/3D Sn perovskite film, leading to better crystallinity. This redistribution of the 2D phase, as a result of diisopropyl ether antisolvent treatment, has the combined effect of decreasing the Sn4+ defect density and background hole density, leading to devices with improved open-circuit voltage, short-circuit current, and power conversion efficiency.

U2 - 10.1021/acsenergylett.4c02745

DO - 10.1021/acsenergylett.4c02745

M3 - Article

SN - 2380-8195

VL - 10

SP - 254

EP - 262

JO - ACS Energy Letters

JF - ACS Energy Letters

IS - 1

ER -