Compositional and Solvent Engineering in Dion–Jacobson 2D Perovskites Boosts Solar Cell Efficiency and Stability

Weijun Ke; Lingling Mao; Constantinos C. Stoumpos; Justin Hoffman; Ioannis Spanopoulos; Aditya D. Mohite; Mercouri G. Kanatzidis

doi:10.1002/aenm.201803384

Compositional and Solvent Engineering in Dion–Jacobson 2D Perovskites Boosts Solar Cell Efficiency and Stability

Weijun Ke, Lingling Mao, Constantinos C. Stoumpos, Justin Hoffman, Ioannis Spanopoulos, Aditya D. Mohite, Mercouri G. Kanatzidis^*

^*Corresponding author for this work

Chemistry

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

254 Scopus citations

Abstract

Hybrid halide 2D perovskites deserve special attention because they exhibit superior environmental stability compared with their 3D analogs. The closer interlayer distance discovered in 2D Dion–Jacobson (DJ) type of halide perovskites relative to 2D Ruddlesden–Popper (RP) perovskites implies better carrier charge transport and superior performance in solar cells. Here, the structure and properties of 2D DJ perovskites employing 3-(aminomethyl)piperidinium (3AMP ²⁺ ) as the spacing cation and a mixture of methylammonium (MA ⁺ ) and formamidinium (FA ⁺ ) cations in the perovskite cages are presented. Using single-crystal X-ray crystallography, it is found that the mixed-cation (3AMP)(MA _0.75 FA _0.25 ) ₃ Pb ₄ I ₁₃ perovskite has a narrower bandgap, less distorted inorganic framework, and larger PbIPb angles than the single-cation (3AMP)(MA) ₃ Pb ₄ I ₁₃ . Furthermore, the (3AMP)(MA _0.75 FA _0.25 ) ₃ Pb ₄ I ₁₃ films made by a solvent-engineering method with a small amount of hydriodic acid have a much better film morphology and crystalline quality and more preferred perpendicular orientation. As a result, the (3AMP)(MA _0.75 FA _0.25 ) ₃ Pb ₄ I ₁₃ -based solar cells exhibit a champion power conversion efficiency of 12.04% with a high fill factor of 81.04% and a 50% average efficiency improvement compared to the pristine (3AMP)(MA) ₃ Pb ₄ I ₁₃ cells. Most importantly, the 2D DJ 3AMP-based perovskite films and devices show better air and light stability than the 2D RP butylammonium-based perovskites and their 3D analogs.

Original language	English (US)
Article number	1803384
Journal	Advanced Energy Materials
Volume	9
Issue number	10
DOIs	https://doi.org/10.1002/aenm.201803384
State	Published - Mar 13 2019

Funding

W.K. and L.M. contributed equally to this work. This work was supported in part by the ONR (N00014-17-1-2231). This work made use of the EPIC facility (NUANCE Center, Northwestern University), which has received support from the MRSEC program (NSF DMR-1720139) at the Materials Research Center and the Nanoscale Science and Engineering Center (EEC-0118025/003), both programs of the National Science Foundation; the State of Illinois; and Northwestern University.

Keywords

Dion Jacobson
low dimensionality
perovskites
solar cells

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

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

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10.1002/aenm.201803384

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@article{79da7801be7747819ac8449bf61fe311,

title = "Compositional and Solvent Engineering in Dion–Jacobson 2D Perovskites Boosts Solar Cell Efficiency and Stability",

abstract = " Hybrid halide 2D perovskites deserve special attention because they exhibit superior environmental stability compared with their 3D analogs. The closer interlayer distance discovered in 2D Dion–Jacobson (DJ) type of halide perovskites relative to 2D Ruddlesden–Popper (RP) perovskites implies better carrier charge transport and superior performance in solar cells. Here, the structure and properties of 2D DJ perovskites employing 3-(aminomethyl)piperidinium (3AMP 2+ ) as the spacing cation and a mixture of methylammonium (MA + ) and formamidinium (FA + ) cations in the perovskite cages are presented. Using single-crystal X-ray crystallography, it is found that the mixed-cation (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 perovskite has a narrower bandgap, less distorted inorganic framework, and larger PbIPb angles than the single-cation (3AMP)(MA) 3 Pb 4 I 13 . Furthermore, the (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 films made by a solvent-engineering method with a small amount of hydriodic acid have a much better film morphology and crystalline quality and more preferred perpendicular orientation. As a result, the (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 -based solar cells exhibit a champion power conversion efficiency of 12.04% with a high fill factor of 81.04% and a 50% average efficiency improvement compared to the pristine (3AMP)(MA) 3 Pb 4 I 13 cells. Most importantly, the 2D DJ 3AMP-based perovskite films and devices show better air and light stability than the 2D RP butylammonium-based perovskites and their 3D analogs.",

keywords = "Dion Jacobson, low dimensionality, perovskites, solar cells",

author = "Weijun Ke and Lingling Mao and Stoumpos, {Constantinos C.} and Justin Hoffman and Ioannis Spanopoulos and Mohite, {Aditya D.} and Kanatzidis, {Mercouri G.}",

note = "Funding Information: W.K. and L.M. contributed equally to this work. This work was supported in part by the ONR (N00014-17-1-2231). This work made use of the EPIC facility (NUANCE Center, Northwestern University), which has received support from the MRSEC program (NSF DMR-1720139) at the Materials Research Center and the Nanoscale Science and Engineering Center (EEC-0118025/003), both programs of the National Science Foundation; the State of Illinois; and Northwestern University. Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2019",

month = mar,

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doi = "10.1002/aenm.201803384",

language = "English (US)",

volume = "9",

journal = "Advanced Energy Materials",

issn = "1614-6832",

publisher = "John Wiley and Sons Inc.",

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T1 - Compositional and Solvent Engineering in Dion–Jacobson 2D Perovskites Boosts Solar Cell Efficiency and Stability

AU - Ke, Weijun

AU - Mao, Lingling

AU - Stoumpos, Constantinos C.

AU - Hoffman, Justin

AU - Spanopoulos, Ioannis

AU - Mohite, Aditya D.

AU - Kanatzidis, Mercouri G.

N1 - Funding Information: W.K. and L.M. contributed equally to this work. This work was supported in part by the ONR (N00014-17-1-2231). This work made use of the EPIC facility (NUANCE Center, Northwestern University), which has received support from the MRSEC program (NSF DMR-1720139) at the Materials Research Center and the Nanoscale Science and Engineering Center (EEC-0118025/003), both programs of the National Science Foundation; the State of Illinois; and Northwestern University. Publisher Copyright: © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2019/3/13

Y1 - 2019/3/13

N2 - Hybrid halide 2D perovskites deserve special attention because they exhibit superior environmental stability compared with their 3D analogs. The closer interlayer distance discovered in 2D Dion–Jacobson (DJ) type of halide perovskites relative to 2D Ruddlesden–Popper (RP) perovskites implies better carrier charge transport and superior performance in solar cells. Here, the structure and properties of 2D DJ perovskites employing 3-(aminomethyl)piperidinium (3AMP 2+ ) as the spacing cation and a mixture of methylammonium (MA + ) and formamidinium (FA + ) cations in the perovskite cages are presented. Using single-crystal X-ray crystallography, it is found that the mixed-cation (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 perovskite has a narrower bandgap, less distorted inorganic framework, and larger PbIPb angles than the single-cation (3AMP)(MA) 3 Pb 4 I 13 . Furthermore, the (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 films made by a solvent-engineering method with a small amount of hydriodic acid have a much better film morphology and crystalline quality and more preferred perpendicular orientation. As a result, the (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 -based solar cells exhibit a champion power conversion efficiency of 12.04% with a high fill factor of 81.04% and a 50% average efficiency improvement compared to the pristine (3AMP)(MA) 3 Pb 4 I 13 cells. Most importantly, the 2D DJ 3AMP-based perovskite films and devices show better air and light stability than the 2D RP butylammonium-based perovskites and their 3D analogs.

AB - Hybrid halide 2D perovskites deserve special attention because they exhibit superior environmental stability compared with their 3D analogs. The closer interlayer distance discovered in 2D Dion–Jacobson (DJ) type of halide perovskites relative to 2D Ruddlesden–Popper (RP) perovskites implies better carrier charge transport and superior performance in solar cells. Here, the structure and properties of 2D DJ perovskites employing 3-(aminomethyl)piperidinium (3AMP 2+ ) as the spacing cation and a mixture of methylammonium (MA + ) and formamidinium (FA + ) cations in the perovskite cages are presented. Using single-crystal X-ray crystallography, it is found that the mixed-cation (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 perovskite has a narrower bandgap, less distorted inorganic framework, and larger PbIPb angles than the single-cation (3AMP)(MA) 3 Pb 4 I 13 . Furthermore, the (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 films made by a solvent-engineering method with a small amount of hydriodic acid have a much better film morphology and crystalline quality and more preferred perpendicular orientation. As a result, the (3AMP)(MA 0.75 FA 0.25 ) 3 Pb 4 I 13 -based solar cells exhibit a champion power conversion efficiency of 12.04% with a high fill factor of 81.04% and a 50% average efficiency improvement compared to the pristine (3AMP)(MA) 3 Pb 4 I 13 cells. Most importantly, the 2D DJ 3AMP-based perovskite films and devices show better air and light stability than the 2D RP butylammonium-based perovskites and their 3D analogs.

KW - Dion Jacobson

KW - low dimensionality

KW - perovskites

KW - solar cells

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SN - 1614-6832

VL - 9

JO - Advanced Energy Materials

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ER -

Compositional and Solvent Engineering in Dion–Jacobson 2D Perovskites Boosts Solar Cell Efficiency and Stability

Abstract

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ASJC Scopus subject areas

UN SDGs

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