Hybrid 2D [Pb(CH3NH2)I2]nCoordination Polymer Precursor for Scalable Perovskite Deposition

Benny Febriansyah; Teck Ming Koh; Prem Jyoti Singh Rana; Thomas J.N. Hooper; Zhi Zhong Ang; Yongxin Li; Annalisa Bruno; Michael Grätzel; Jason England; Subodh G. Mhaisalkar; Nripan Mathews

doi:10.1021/acsenergylett.0c00781

Hybrid 2D [Pb(CH₃NH₂)I₂]_nCoordination Polymer Precursor for Scalable Perovskite Deposition

Benny Febriansyah, Teck Ming Koh, Prem Jyoti Singh Rana, Thomas J.N. Hooper, Zhi Zhong Ang, Yongxin Li, Annalisa Bruno, Michael Grätzel, Jason England, Subodh G. Mhaisalkar, Nripan Mathews^*

^*Corresponding author for this work

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

18 Citations (Scopus)

Abstract

A two-dimensional hybrid coordination polymer [Pb(CH3NH2)I2]n featuring a well-defined layered structure is reported for scalable perovskite ink and deposition. This coordination polymer exhibits structural, spectroscopic, and physicochemical properties distinct from common PbI2 perovskite precursors. Notably, it serves as a methylamine "gas carrier"capable of liberating methylamine (CH3NH2) into the precursor solution, thus improving the solubility of perovskite in unconventional, greener processing solvents, such as acetonitrile. The purity of [Pb(CH3NH2)I2]n single crystals and the ability of the precursor to reduce sources of defects such as polyiodide species in solution allow the formation of high-quality perovskite films. This eventually results in efficient and stable devices, fabricated via a single-step antisolvent-free deposition method, transferable to large-area slot die coating. Gram scale synthesis of this unique lead precursor is demonstrated, essential for the scale-up of perovskite photovoltaic technology.

Original language	English
Pages (from-to)	2305-2312
Number of pages	8
Journal	ACS Energy Letters
Volume	5
Issue number	7
DOIs	https://doi.org/10.1021/acsenergylett.0c00781
Publication status	Published - Jul 10 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
Copyright © 2020 American Chemical Society.

ASJC Scopus Subject Areas

Chemistry (miscellaneous)
Renewable Energy, Sustainability and the Environment
Fuel Technology
Energy Engineering and Power Technology
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsenergylett.0c00781

Cite this

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title = "Hybrid 2D [Pb(CH3NH2)I2]nCoordination Polymer Precursor for Scalable Perovskite Deposition",

abstract = "A two-dimensional hybrid coordination polymer [Pb(CH3NH2)I2]n featuring a well-defined layered structure is reported for scalable perovskite ink and deposition. This coordination polymer exhibits structural, spectroscopic, and physicochemical properties distinct from common PbI2 perovskite precursors. Notably, it serves as a methylamine {"}gas carrier{"}capable of liberating methylamine (CH3NH2) into the precursor solution, thus improving the solubility of perovskite in unconventional, greener processing solvents, such as acetonitrile. The purity of [Pb(CH3NH2)I2]n single crystals and the ability of the precursor to reduce sources of defects such as polyiodide species in solution allow the formation of high-quality perovskite films. This eventually results in efficient and stable devices, fabricated via a single-step antisolvent-free deposition method, transferable to large-area slot die coating. Gram scale synthesis of this unique lead precursor is demonstrated, essential for the scale-up of perovskite photovoltaic technology.",

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AU - Koh, Teck Ming

AU - Rana, Prem Jyoti Singh

AU - Hooper, Thomas J.N.

AU - Ang, Zhi Zhong

AU - Li, Yongxin

AU - Bruno, Annalisa

AU - Grätzel, Michael

AU - England, Jason

AU - Mhaisalkar, Subodh G.

AU - Mathews, Nripan

PY - 2020/7/10

Y1 - 2020/7/10

N2 - A two-dimensional hybrid coordination polymer [Pb(CH3NH2)I2]n featuring a well-defined layered structure is reported for scalable perovskite ink and deposition. This coordination polymer exhibits structural, spectroscopic, and physicochemical properties distinct from common PbI2 perovskite precursors. Notably, it serves as a methylamine "gas carrier"capable of liberating methylamine (CH3NH2) into the precursor solution, thus improving the solubility of perovskite in unconventional, greener processing solvents, such as acetonitrile. The purity of [Pb(CH3NH2)I2]n single crystals and the ability of the precursor to reduce sources of defects such as polyiodide species in solution allow the formation of high-quality perovskite films. This eventually results in efficient and stable devices, fabricated via a single-step antisolvent-free deposition method, transferable to large-area slot die coating. Gram scale synthesis of this unique lead precursor is demonstrated, essential for the scale-up of perovskite photovoltaic technology.

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