Enhancing Charge Transport of 2D Perovskite Passivation Agent for Wide-Bandgap Perovskite Solar Cells Beyond 21%

Jiselle Y. Ye; Jinhui Tong; Jun Hu; Chuanxiao Xiao; Haipeng Lu; Sean P. Dunfield; Dong Hoe Kim; Xihan Chen; Bryon W. Larson; Ji Hao; Kang Wang; Qian Zhao; Zheng Chen; Huamin Hu; Wei You; Joseph J. Berry; Fei Zhang; Kai Zhu

doi:10.1002/solr.202000082

Enhancing Charge Transport of 2D Perovskite Passivation Agent for Wide-Bandgap Perovskite Solar Cells Beyond 21%

Jiselle Y. Ye, Jinhui Tong, Jun Hu, Chuanxiao Xiao, Haipeng Lu, Sean P. Dunfield, Dong Hoe Kim, Xihan Chen, Bryon W. Larson, Ji Hao, Kang Wang, Qian Zhao, Zheng Chen, Huamin Hu, Wei You, Joseph J. Berry, Fei Zhang, Kai Zhu

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

56 Citations (Scopus)

Abstract

The replacement of a small amount of organic cations with bulkier organic spacer cations in the perovskite precursor solution to form a 2D perovskite passivation agent (2D-PPA) in 3D perovskite thin films has recently become a promising strategy for developing perovskite solar cells (PSCs) with long-term stability and high efficiency. However, the long, bulky organic cations often form a barrier, hindering charge transport. Herein, for the first time, 2D-PPA engineering based on wide-bandgap (≈1.68 eV) perovskites are reported. Pentafluorophenethylammonium (F5PEA⁺) is introduced to partially replace phenylethylammonium (PEA⁺) as the 2D-PPA, forming a strong noncovalent interaction between the two bulky cations. The charge transport across and within the planes of pure 2D perovskites, based on mixed ammoniums, increases by a factor of five and three compared with that of mono-cation 2D perovskites, respectively. The perovskite films based on mixed-ammonium (F5PEA⁺-PEA⁺) 2D-PPA exhibit similar surface morphology and crystal structure, but longer carrier lifetime, lower exciton binding energy, less trap density and higher conductivity, in comparison with those using mono-cation (PEA⁺) 2D-PPA. The performance of PSCs based on mixed-cation 2D-PPA is enhanced from 19.58% to 21.10% along with improved stability, which is the highest performance for reported wide-bandgap PSCs.

Original language	English
Article number	2000082
Journal	Solar RRL
Volume	4
Issue number	6
DOIs	https://doi.org/10.1002/solr.202000082
Publication status	Published - 2020 Jun 1
Externally published	Yes

Keywords

2D
charge transports
passivation agents
perovskites
solar cells

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1002/solr.202000082

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Ye, J. Y., Tong, J., Hu, J., Xiao, C., Lu, H., Dunfield, S. P., Kim, D. H., Chen, X., Larson, B. W., Hao, J., Wang, K., Zhao, Q., Chen, Z., Hu, H., You, W., Berry, J. J., Zhang, F., & Zhu, K. (2020). Enhancing Charge Transport of 2D Perovskite Passivation Agent for Wide-Bandgap Perovskite Solar Cells Beyond 21%. Solar RRL, 4(6), [2000082]. https://doi.org/10.1002/solr.202000082

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title = "Enhancing Charge Transport of 2D Perovskite Passivation Agent for Wide-Bandgap Perovskite Solar Cells Beyond 21%",

abstract = "The replacement of a small amount of organic cations with bulkier organic spacer cations in the perovskite precursor solution to form a 2D perovskite passivation agent (2D-PPA) in 3D perovskite thin films has recently become a promising strategy for developing perovskite solar cells (PSCs) with long-term stability and high efficiency. However, the long, bulky organic cations often form a barrier, hindering charge transport. Herein, for the first time, 2D-PPA engineering based on wide-bandgap (≈1.68 eV) perovskites are reported. Pentafluorophenethylammonium (F5PEA+) is introduced to partially replace phenylethylammonium (PEA+) as the 2D-PPA, forming a strong noncovalent interaction between the two bulky cations. The charge transport across and within the planes of pure 2D perovskites, based on mixed ammoniums, increases by a factor of five and three compared with that of mono-cation 2D perovskites, respectively. The perovskite films based on mixed-ammonium (F5PEA+-PEA+) 2D-PPA exhibit similar surface morphology and crystal structure, but longer carrier lifetime, lower exciton binding energy, less trap density and higher conductivity, in comparison with those using mono-cation (PEA+) 2D-PPA. The performance of PSCs based on mixed-cation 2D-PPA is enhanced from 19.58% to 21.10% along with improved stability, which is the highest performance for reported wide-bandgap PSCs.",

keywords = "2D, charge transports, passivation agents, perovskites, solar cells",

author = "Ye, {Jiselle Y.} and Jinhui Tong and Jun Hu and Chuanxiao Xiao and Haipeng Lu and Dunfield, {Sean P.} and Kim, {Dong Hoe} and Xihan Chen and Larson, {Bryon W.} and Ji Hao and Kang Wang and Qian Zhao and Zheng Chen and Huamin Hu and Wei You and Berry, {Joseph J.} and Fei Zhang and Kai Zhu",

note = "Funding Information: This work was supported by the U.S. Department of Energy under contract no. DE-AC36-08GO28308 with Alliance for Sustainable Energy, Limited Liability Company (LLC), the Manager and Operator of the National Renewable Energy Laboratory. The authors thank the support on the design and characterization of F5PEAI-based perovskite materials from the Center for Hybrid Organic Inorganic Semiconductors for Energy (CHOISE), an Energy Frontier Research Center funded by the Office of Basic Energy Sciences, Office of Science within the U.S. Department of Energy. The authors also thank the support for PV device fabrication and characterization from the De-risking Halide Perovskite Solar Cells program, funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Solar Energy Technologies Office. J.Y.Y. thanks for the support from U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists (WDTS) under the Science Undergraduate Laboratory Internship (SULI) program. D.H.K. thanks for the support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2019R1F1A1064095). Publisher Copyright: {\textcopyright} 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2020",

month = jun,

day = "1",

doi = "10.1002/solr.202000082",

language = "English",

volume = "4",

journal = "Solar RRL",

issn = "2367-198X",

publisher = "Wiley-VCH Verlag",

number = "6",

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TY - JOUR

T1 - Enhancing Charge Transport of 2D Perovskite Passivation Agent for Wide-Bandgap Perovskite Solar Cells Beyond 21%

AU - Ye, Jiselle Y.

AU - Tong, Jinhui

AU - Hu, Jun

AU - Xiao, Chuanxiao

AU - Lu, Haipeng

AU - Dunfield, Sean P.

AU - Kim, Dong Hoe

AU - Chen, Xihan

AU - Larson, Bryon W.

AU - Hao, Ji

AU - Wang, Kang

AU - Zhao, Qian

AU - Chen, Zheng

AU - Hu, Huamin

AU - You, Wei

AU - Berry, Joseph J.

AU - Zhang, Fei

AU - Zhu, Kai

N1 - Funding Information: This work was supported by the U.S. Department of Energy under contract no. DE-AC36-08GO28308 with Alliance for Sustainable Energy, Limited Liability Company (LLC), the Manager and Operator of the National Renewable Energy Laboratory. The authors thank the support on the design and characterization of F5PEAI-based perovskite materials from the Center for Hybrid Organic Inorganic Semiconductors for Energy (CHOISE), an Energy Frontier Research Center funded by the Office of Basic Energy Sciences, Office of Science within the U.S. Department of Energy. The authors also thank the support for PV device fabrication and characterization from the De-risking Halide Perovskite Solar Cells program, funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Solar Energy Technologies Office. J.Y.Y. thanks for the support from U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists (WDTS) under the Science Undergraduate Laboratory Internship (SULI) program. D.H.K. thanks for the support from the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (2019R1F1A1064095). Publisher Copyright: © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2020/6/1

Y1 - 2020/6/1

N2 - The replacement of a small amount of organic cations with bulkier organic spacer cations in the perovskite precursor solution to form a 2D perovskite passivation agent (2D-PPA) in 3D perovskite thin films has recently become a promising strategy for developing perovskite solar cells (PSCs) with long-term stability and high efficiency. However, the long, bulky organic cations often form a barrier, hindering charge transport. Herein, for the first time, 2D-PPA engineering based on wide-bandgap (≈1.68 eV) perovskites are reported. Pentafluorophenethylammonium (F5PEA+) is introduced to partially replace phenylethylammonium (PEA+) as the 2D-PPA, forming a strong noncovalent interaction between the two bulky cations. The charge transport across and within the planes of pure 2D perovskites, based on mixed ammoniums, increases by a factor of five and three compared with that of mono-cation 2D perovskites, respectively. The perovskite films based on mixed-ammonium (F5PEA+-PEA+) 2D-PPA exhibit similar surface morphology and crystal structure, but longer carrier lifetime, lower exciton binding energy, less trap density and higher conductivity, in comparison with those using mono-cation (PEA+) 2D-PPA. The performance of PSCs based on mixed-cation 2D-PPA is enhanced from 19.58% to 21.10% along with improved stability, which is the highest performance for reported wide-bandgap PSCs.

AB - The replacement of a small amount of organic cations with bulkier organic spacer cations in the perovskite precursor solution to form a 2D perovskite passivation agent (2D-PPA) in 3D perovskite thin films has recently become a promising strategy for developing perovskite solar cells (PSCs) with long-term stability and high efficiency. However, the long, bulky organic cations often form a barrier, hindering charge transport. Herein, for the first time, 2D-PPA engineering based on wide-bandgap (≈1.68 eV) perovskites are reported. Pentafluorophenethylammonium (F5PEA+) is introduced to partially replace phenylethylammonium (PEA+) as the 2D-PPA, forming a strong noncovalent interaction between the two bulky cations. The charge transport across and within the planes of pure 2D perovskites, based on mixed ammoniums, increases by a factor of five and three compared with that of mono-cation 2D perovskites, respectively. The perovskite films based on mixed-ammonium (F5PEA+-PEA+) 2D-PPA exhibit similar surface morphology and crystal structure, but longer carrier lifetime, lower exciton binding energy, less trap density and higher conductivity, in comparison with those using mono-cation (PEA+) 2D-PPA. The performance of PSCs based on mixed-cation 2D-PPA is enhanced from 19.58% to 21.10% along with improved stability, which is the highest performance for reported wide-bandgap PSCs.

KW - 2D

KW - charge transports

KW - passivation agents

KW - perovskites

KW - solar cells

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U2 - 10.1002/solr.202000082

DO - 10.1002/solr.202000082

M3 - Article

AN - SCOPUS:85083843456

VL - 4

JO - Solar RRL

JF - Solar RRL

SN - 2367-198X

IS - 6

M1 - 2000082

ER -

Enhancing Charge Transport of 2D Perovskite Passivation Agent for Wide-Bandgap Perovskite Solar Cells Beyond 21%

Abstract

Keywords

ASJC Scopus subject areas

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