Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes

Kang Wang; Zih Yu Lin; Zihan Zhang; Linrui Jin; Ke Ma; Aidan H. Coffey; Harindi R. Atapattu; Yao Gao; Jee Yung Park; Zitang Wei; Blake P. Finkenauer; Chenhui Zhu; Xiangeng Meng; Sarah N. Chowdhury; Zhaoyang Chen; Tanguy Terlier; Thi Hoai Do; Yan Yao; Kenneth R. Graham; Alexandra Boltasseva; Tzung Fang Guo; Libai Huang; Hanwei Gao; Brett M. Savoie; Letian Dou

doi:10.1038/s41467-023-36118-7

Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes

Kang Wang, Zih Yu Lin, Zihan Zhang, Linrui Jin, Ke Ma, Aidan H. Coffey, Harindi R. Atapattu, Yao Gao, Jee Yung Park, Zitang Wei, Blake P. Finkenauer, Chenhui Zhu, Xiangeng Meng, Sarah N. Chowdhury, Zhaoyang Chen, Tanguy Terlier, Thi Hoai Do, Yan Yao, Kenneth R. Graham, Alexandra BoltassevaTzung Fang Guo, Libai Huang, Hanwei Gao, Brett M. Savoie, Letian Dou

Chemistry

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

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Abstract

Electroluminescence efficiencies and stabilities of quasi-two-dimensional halide perovskites are restricted by the formation of multiple-quantum-well structures with broad and uncontrollable phase distributions. Here, we report a ligand design strategy to substantially suppress diffusion-limited phase disproportionation, thereby enabling better phase control. We demonstrate that extending the π-conjugation length and increasing the cross-sectional area of the ligand enables perovskite thin films with dramatically suppressed ion transport, narrowed phase distributions, reduced defect densities, and enhanced radiative recombination efficiencies. Consequently, we achieved efficient and stable deep-red light-emitting diodes with a peak external quantum efficiency of 26.3% (average 22.9% among 70 devices and cross-checked) and a half-life of ~220 and 2.8 h under a constant current density of 0.1 and 12 mA/cm², respectively. Our devices also exhibit wide wavelength tunability and improved spectral and phase stability compared with existing perovskite light-emitting diodes. These discoveries provide critical insights into the molecular design and crystallization kinetics of low-dimensional perovskite semiconductors for light-emitting devices.

Original language	English
Article number	397
Journal	Nature Communications
Volume	14
Issue number	1
DOIs	https://doi.org/10.1038/s41467-023-36118-7
State	Published - Dec 2023

Bibliographical note

Funding Information:
This work is supported by the National Science Foundation (Grant No. 2131608-ECCS). Z.Z. and H.G. acknowledge the support from the National Science Foundation (2110814-EPM). L.J. and L.H. acknowledge the support for spectroscopy measurements from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0022082. H.R.A. and K.R.G. acknowledge the support for UPS measurements from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0018208. X.M. acknowledges the financial support by the National Natural Science Foundation of China (No. 11774188). A.B. and S.C. acknowledge the support from the ONR MURI (N00014-21-1-2026). ToF-SIMS analysis was carried out with support provided by the National Science Foundation CBET-1626418 and this work was conducted in part using resources of the Shared Equipment Authority at Rice University. We thank Dr. Shuchen Zhang and Qian Lu for the discussions and help with device fabrications, respectively.

Publisher Copyright:
© 2023, The Author(s).

ASJC Scopus subject areas

Chemistry (all)
Biochemistry, Genetics and Molecular Biology (all)
General
Physics and Astronomy (all)

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10.1038/s41467-023-36118-7

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Wang, K., Lin, Z. Y., Zhang, Z., Jin, L., Ma, K., Coffey, A. H., Atapattu, H. R., Gao, Y., Park, J. Y., Wei, Z., Finkenauer, B. P., Zhu, C., Meng, X., Chowdhury, S. N., Chen, Z., Terlier, T., Do, T. H., Yao, Y., Graham, K. R., ... Dou, L. (2023). Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes. Nature Communications, 14(1), [397]. https://doi.org/10.1038/s41467-023-36118-7

@article{45629ac8987d4c1fa91279a4e2dc3923,

title = "Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes",

abstract = "Electroluminescence efficiencies and stabilities of quasi-two-dimensional halide perovskites are restricted by the formation of multiple-quantum-well structures with broad and uncontrollable phase distributions. Here, we report a ligand design strategy to substantially suppress diffusion-limited phase disproportionation, thereby enabling better phase control. We demonstrate that extending the π-conjugation length and increasing the cross-sectional area of the ligand enables perovskite thin films with dramatically suppressed ion transport, narrowed phase distributions, reduced defect densities, and enhanced radiative recombination efficiencies. Consequently, we achieved efficient and stable deep-red light-emitting diodes with a peak external quantum efficiency of 26.3% (average 22.9% among 70 devices and cross-checked) and a half-life of ~220 and 2.8 h under a constant current density of 0.1 and 12 mA/cm2, respectively. Our devices also exhibit wide wavelength tunability and improved spectral and phase stability compared with existing perovskite light-emitting diodes. These discoveries provide critical insights into the molecular design and crystallization kinetics of low-dimensional perovskite semiconductors for light-emitting devices.",

author = "Kang Wang and Lin, {Zih Yu} and Zihan Zhang and Linrui Jin and Ke Ma and Coffey, {Aidan H.} and Atapattu, {Harindi R.} and Yao Gao and Park, {Jee Yung} and Zitang Wei and Finkenauer, {Blake P.} and Chenhui Zhu and Xiangeng Meng and Chowdhury, {Sarah N.} and Zhaoyang Chen and Tanguy Terlier and Do, {Thi Hoai} and Yan Yao and Graham, {Kenneth R.} and Alexandra Boltasseva and Guo, {Tzung Fang} and Libai Huang and Hanwei Gao and Savoie, {Brett M.} and Letian Dou",

note = "Funding Information: This work is supported by the National Science Foundation (Grant No. 2131608-ECCS). Z.Z. and H.G. acknowledge the support from the National Science Foundation (2110814-EPM). L.J. and L.H. acknowledge the support for spectroscopy measurements from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0022082. H.R.A. and K.R.G. acknowledge the support for UPS measurements from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0018208. X.M. acknowledges the financial support by the National Natural Science Foundation of China (No. 11774188). A.B. and S.C. acknowledge the support from the ONR MURI (N00014-21-1-2026). ToF-SIMS analysis was carried out with support provided by the National Science Foundation CBET-1626418 and this work was conducted in part using resources of the Shared Equipment Authority at Rice University. We thank Dr. Shuchen Zhang and Qian Lu for the discussions and help with device fabrications, respectively. Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = dec,

doi = "10.1038/s41467-023-36118-7",

language = "English",

volume = "14",

number = "1",

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Wang, K, Lin, ZY, Zhang, Z, Jin, L, Ma, K, Coffey, AH, Atapattu, HR, Gao, Y, Park, JY, Wei, Z, Finkenauer, BP, Zhu, C, Meng, X, Chowdhury, SN, Chen, Z, Terlier, T, Do, TH, Yao, Y, Graham, KR, Boltasseva, A, Guo, TF, Huang, L, Gao, H, Savoie, BM & Dou, L 2023, 'Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes', Nature Communications, vol. 14, no. 1, 397. https://doi.org/10.1038/s41467-023-36118-7

TY - JOUR

T1 - Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes

AU - Wang, Kang

AU - Lin, Zih Yu

AU - Zhang, Zihan

AU - Jin, Linrui

AU - Ma, Ke

AU - Coffey, Aidan H.

AU - Atapattu, Harindi R.

AU - Gao, Yao

AU - Park, Jee Yung

AU - Wei, Zitang

AU - Finkenauer, Blake P.

AU - Zhu, Chenhui

AU - Meng, Xiangeng

AU - Chowdhury, Sarah N.

AU - Chen, Zhaoyang

AU - Terlier, Tanguy

AU - Do, Thi Hoai

AU - Yao, Yan

AU - Graham, Kenneth R.

AU - Boltasseva, Alexandra

AU - Guo, Tzung Fang

AU - Huang, Libai

AU - Gao, Hanwei

AU - Savoie, Brett M.

AU - Dou, Letian

N1 - Funding Information: This work is supported by the National Science Foundation (Grant No. 2131608-ECCS). Z.Z. and H.G. acknowledge the support from the National Science Foundation (2110814-EPM). L.J. and L.H. acknowledge the support for spectroscopy measurements from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0022082. H.R.A. and K.R.G. acknowledge the support for UPS measurements from the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0018208. X.M. acknowledges the financial support by the National Natural Science Foundation of China (No. 11774188). A.B. and S.C. acknowledge the support from the ONR MURI (N00014-21-1-2026). ToF-SIMS analysis was carried out with support provided by the National Science Foundation CBET-1626418 and this work was conducted in part using resources of the Shared Equipment Authority at Rice University. We thank Dr. Shuchen Zhang and Qian Lu for the discussions and help with device fabrications, respectively. Publisher Copyright: © 2023, The Author(s).

PY - 2023/12

Y1 - 2023/12

N2 - Electroluminescence efficiencies and stabilities of quasi-two-dimensional halide perovskites are restricted by the formation of multiple-quantum-well structures with broad and uncontrollable phase distributions. Here, we report a ligand design strategy to substantially suppress diffusion-limited phase disproportionation, thereby enabling better phase control. We demonstrate that extending the π-conjugation length and increasing the cross-sectional area of the ligand enables perovskite thin films with dramatically suppressed ion transport, narrowed phase distributions, reduced defect densities, and enhanced radiative recombination efficiencies. Consequently, we achieved efficient and stable deep-red light-emitting diodes with a peak external quantum efficiency of 26.3% (average 22.9% among 70 devices and cross-checked) and a half-life of ~220 and 2.8 h under a constant current density of 0.1 and 12 mA/cm2, respectively. Our devices also exhibit wide wavelength tunability and improved spectral and phase stability compared with existing perovskite light-emitting diodes. These discoveries provide critical insights into the molecular design and crystallization kinetics of low-dimensional perovskite semiconductors for light-emitting devices.

AB - Electroluminescence efficiencies and stabilities of quasi-two-dimensional halide perovskites are restricted by the formation of multiple-quantum-well structures with broad and uncontrollable phase distributions. Here, we report a ligand design strategy to substantially suppress diffusion-limited phase disproportionation, thereby enabling better phase control. We demonstrate that extending the π-conjugation length and increasing the cross-sectional area of the ligand enables perovskite thin films with dramatically suppressed ion transport, narrowed phase distributions, reduced defect densities, and enhanced radiative recombination efficiencies. Consequently, we achieved efficient and stable deep-red light-emitting diodes with a peak external quantum efficiency of 26.3% (average 22.9% among 70 devices and cross-checked) and a half-life of ~220 and 2.8 h under a constant current density of 0.1 and 12 mA/cm2, respectively. Our devices also exhibit wide wavelength tunability and improved spectral and phase stability compared with existing perovskite light-emitting diodes. These discoveries provide critical insights into the molecular design and crystallization kinetics of low-dimensional perovskite semiconductors for light-emitting devices.

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UR - http://www.scopus.com/inward/citedby.url?scp=85146815062&partnerID=8YFLogxK

U2 - 10.1038/s41467-023-36118-7

DO - 10.1038/s41467-023-36118-7

M3 - Article

C2 - 36693860

AN - SCOPUS:85146815062

VL - 14

IS - 1

M1 - 397

ER -

Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes

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