Sulfonic Zwitterion for Passivating Deep and Shallow Level Defects in Perovskite Light-Emitting Diodes

Ju Zhang; Xuanchang Xing; Dongmin Qian; Airu Wang; Lianghui Gu; Zhiyuan Kuang; Jingmin Wang; Hao Zhang; Kaichuan Wen; Wenjie Xu; Meiling Niu; Xuerong Du; Lingzhi Yuan; Chensi Cao; Yu Cao; Lin Zhu; Nana Wang; Chang Yi; Wei Huang; Jianpu Wang

doi:10.1002/adfm.202111578

Sulfonic Zwitterion for Passivating Deep and Shallow Level Defects in Perovskite Light-Emitting Diodes

Ju Zhang, Xuanchang Xing, Dongmin Qian, Airu Wang, Lianghui Gu, Zhiyuan Kuang, Jingmin Wang, Hao Zhang, Kaichuan Wen, Wenjie Xu, Meiling Niu, Xuerong Du, Lingzhi Yuan, Chensi Cao, Yu Cao, Lin Zhu, Nana Wang, Chang Yi, Wei Huang, Jianpu Wang

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

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

66 Scopus citations

Abstract

Chemical passivation via functional additives plays a critical role in achieving high performance perovskite light-emitting diodes (PeLEDs). Here, perovskite composite films for high performance PeLEDs by using zwitterion 3-aminopropanesulfonic acid (APS) as the additive are developed. The sulfonic group of APS can simultaneously passivate deep and shallow level defects in perovskites via coordinate and hydrogen bonding, which leads to suppressed non-radiative recombination and ion migration in the perovskite composite films. Based on this, PeLEDs with a peak external quantum efficiency of 19.2% and a half-lifetime of 43 h at a constant current density of 100 mA cm⁻² are obtained, representing one of the most stable and efficient PeLEDs under high current densities.

Original language	English
Article number	2111578
Journal	Advanced Functional Materials
Volume	32
Issue number	22
DOIs	https://doi.org/10.1002/adfm.202111578
State	Published - 25 May 2022

Keywords

defect
light emitting diodes
passivation
perovskite
zwitterion

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10.1002/adfm.202111578

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Zhang, J., Xing, X., Qian, D., Wang, A., Gu, L., Kuang, Z., Wang, J., Zhang, H., Wen, K., Xu, W., Niu, M., Du, X., Yuan, L., Cao, C., Cao, Y., Zhu, L., Wang, N., Yi, C., Huang, W., & Wang, J. (2022). Sulfonic Zwitterion for Passivating Deep and Shallow Level Defects in Perovskite Light-Emitting Diodes. Advanced Functional Materials, 32(22), Article 2111578. https://doi.org/10.1002/adfm.202111578

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title = "Sulfonic Zwitterion for Passivating Deep and Shallow Level Defects in Perovskite Light-Emitting Diodes",

abstract = "Chemical passivation via functional additives plays a critical role in achieving high performance perovskite light-emitting diodes (PeLEDs). Here, perovskite composite films for high performance PeLEDs by using zwitterion 3-aminopropanesulfonic acid (APS) as the additive are developed. The sulfonic group of APS can simultaneously passivate deep and shallow level defects in perovskites via coordinate and hydrogen bonding, which leads to suppressed non-radiative recombination and ion migration in the perovskite composite films. Based on this, PeLEDs with a peak external quantum efficiency of 19.2% and a half-lifetime of 43 h at a constant current density of 100 mA cm−2 are obtained, representing one of the most stable and efficient PeLEDs under high current densities.",

keywords = "defect, light emitting diodes, passivation, perovskite, zwitterion",

author = "Ju Zhang and Xuanchang Xing and Dongmin Qian and Airu Wang and Lianghui Gu and Zhiyuan Kuang and Jingmin Wang and Hao Zhang and Kaichuan Wen and Wenjie Xu and Meiling Niu and Xuerong Du and Lingzhi Yuan and Chensi Cao and Yu Cao and Lin Zhu and Nana Wang and Chang Yi and Wei Huang and Jianpu Wang",

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year = "2022",

month = may,

day = "25",

doi = "10.1002/adfm.202111578",

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Zhang, J, Xing, X, Qian, D, Wang, A, Gu, L, Kuang, Z, Wang, J, Zhang, H, Wen, K, Xu, W, Niu, M, Du, X, Yuan, L, Cao, C, Cao, Y, Zhu, L, Wang, N , Yi, C, Huang, W & Wang, J 2022, 'Sulfonic Zwitterion for Passivating Deep and Shallow Level Defects in Perovskite Light-Emitting Diodes', Advanced Functional Materials, vol. 32, no. 22, 2111578. https://doi.org/10.1002/adfm.202111578

TY - JOUR

T1 - Sulfonic Zwitterion for Passivating Deep and Shallow Level Defects in Perovskite Light-Emitting Diodes

AU - Zhang, Ju

AU - Xing, Xuanchang

AU - Qian, Dongmin

AU - Wang, Airu

AU - Gu, Lianghui

AU - Kuang, Zhiyuan

AU - Wang, Jingmin

AU - Zhang, Hao

AU - Wen, Kaichuan

AU - Xu, Wenjie

AU - Niu, Meiling

AU - Du, Xuerong

AU - Yuan, Lingzhi

AU - Cao, Chensi

AU - Cao, Yu

AU - Zhu, Lin

AU - Wang, Nana

AU - Yi, Chang

AU - Huang, Wei

AU - Wang, Jianpu

PY - 2022/5/25

Y1 - 2022/5/25

N2 - Chemical passivation via functional additives plays a critical role in achieving high performance perovskite light-emitting diodes (PeLEDs). Here, perovskite composite films for high performance PeLEDs by using zwitterion 3-aminopropanesulfonic acid (APS) as the additive are developed. The sulfonic group of APS can simultaneously passivate deep and shallow level defects in perovskites via coordinate and hydrogen bonding, which leads to suppressed non-radiative recombination and ion migration in the perovskite composite films. Based on this, PeLEDs with a peak external quantum efficiency of 19.2% and a half-lifetime of 43 h at a constant current density of 100 mA cm−2 are obtained, representing one of the most stable and efficient PeLEDs under high current densities.

AB - Chemical passivation via functional additives plays a critical role in achieving high performance perovskite light-emitting diodes (PeLEDs). Here, perovskite composite films for high performance PeLEDs by using zwitterion 3-aminopropanesulfonic acid (APS) as the additive are developed. The sulfonic group of APS can simultaneously passivate deep and shallow level defects in perovskites via coordinate and hydrogen bonding, which leads to suppressed non-radiative recombination and ion migration in the perovskite composite films. Based on this, PeLEDs with a peak external quantum efficiency of 19.2% and a half-lifetime of 43 h at a constant current density of 100 mA cm−2 are obtained, representing one of the most stable and efficient PeLEDs under high current densities.

KW - defect

KW - light emitting diodes

KW - passivation

KW - perovskite

KW - zwitterion

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U2 - 10.1002/adfm.202111578

DO - 10.1002/adfm.202111578

M3 - 文章

AN - SCOPUS:85125036757

SN - 1616-301X

VL - 32

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 22

M1 - 2111578

ER -

Sulfonic Zwitterion for Passivating Deep and Shallow Level Defects in Perovskite Light-Emitting Diodes

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