Halide exchange in the passivation of perovskite solar cells with functionalized ionic liquids

Xiao Xin Gao; Bin Ding; Yi Zhang; Shunlin Zhang; Roland Christopher Turnell-Ritson; Hiroyuki Kanda; Mousa Abuhelaiqa; Naoyuki Shibayama; Wen Luo; Mo Li; Farzaneh Fadaei Tirani; Rosario Scopelliti; Sachin Kinge; Andreas Züttel; Dunru Zhu; Bao Zhang; Yaqing Feng; Zhaofu Fei; Mohammad Khaja Nazeeruddin; Paul J. Dyson

doi:10.1016/j.xcrp.2022.100848

Halide exchange in the passivation of perovskite solar cells with functionalized ionic liquids

Xiao Xin Gao, Bin Ding, Yi Zhang, Shunlin Zhang, Roland Christopher Turnell-Ritson, Hiroyuki Kanda, Mousa Abuhelaiqa, Naoyuki Shibayama, Wen Luo, Mo Li, Farzaneh Fadaei Tirani, Rosario Scopelliti, Sachin Kinge, Andreas Züttel, Dunru Zhu, Bao Zhang, Yaqing Feng, Zhaofu Fei, Mohammad Khaja Nazeeruddin, Paul J. Dyson

College of Chemical Engineering

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

15 Scopus citations

Abstract

Applying additives to perovskite precursor solutions is an effective way to passivate perovskite films for the construction of perovskite solar cells (PSCs) with increased power-conversion efficiencies (PCEs) and enhanced stabilities. Ionic liquids (ILs) with halide anions have been applied as additives. Here, we report the application of imidazolium-based ILs, containing the nitrile functionality in the cation and chloride anion, as additives for triple-cation (Cs⁺, formamidinium [FA⁺], methylammonium [MA⁺]) PSCs. We found that a Cl-I exchange takes place between the I⁻ anion of the triple-cation precursors and the Cl⁻ anion of the IL. The fabricated PSCs containing perovskite films with the ILs show high PCEs (in the best case 22.86%) and high stabilities, with the unencapsulated devices retaining about 95% of their original efficiencies after 1,000 h. The mechanistic basis for the passivation effect of the IL additives in the perovskite films is described.

Original language	English
Article number	100848
Journal	Cell Reports Physical Science
Volume	3
Issue number	4
DOIs	https://doi.org/10.1016/j.xcrp.2022.100848
State	Published - 20 Apr 2022

Keywords

CN
additives
ionic liquid
nitrile group
perovskite solar cells
stability

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10.1016/j.xcrp.2022.100848

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Gao, X. X., Ding, B., Zhang, Y., Zhang, S., Turnell-Ritson, R. C., Kanda, H., Abuhelaiqa, M., Shibayama, N., Luo, W., Li, M., Tirani, F. F., Scopelliti, R., Kinge, S., Züttel, A., Zhu, D., Zhang, B., Feng, Y., Fei, Z., Nazeeruddin, M. K., & Dyson, P. J. (2022). Halide exchange in the passivation of perovskite solar cells with functionalized ionic liquids. Cell Reports Physical Science, 3(4), Article 100848. https://doi.org/10.1016/j.xcrp.2022.100848

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title = "Halide exchange in the passivation of perovskite solar cells with functionalized ionic liquids",

abstract = "Applying additives to perovskite precursor solutions is an effective way to passivate perovskite films for the construction of perovskite solar cells (PSCs) with increased power-conversion efficiencies (PCEs) and enhanced stabilities. Ionic liquids (ILs) with halide anions have been applied as additives. Here, we report the application of imidazolium-based ILs, containing the nitrile functionality in the cation and chloride anion, as additives for triple-cation (Cs+, formamidinium [FA+], methylammonium [MA+]) PSCs. We found that a Cl-I exchange takes place between the I− anion of the triple-cation precursors and the Cl− anion of the IL. The fabricated PSCs containing perovskite films with the ILs show high PCEs (in the best case 22.86%) and high stabilities, with the unencapsulated devices retaining about 95% of their original efficiencies after 1,000 h. The mechanistic basis for the passivation effect of the IL additives in the perovskite films is described.",

keywords = "CN, additives, ionic liquid, nitrile group, perovskite solar cells, stability",

author = "Gao, {Xiao Xin} and Bin Ding and Yi Zhang and Shunlin Zhang and Turnell-Ritson, {Roland Christopher} and Hiroyuki Kanda and Mousa Abuhelaiqa and Naoyuki Shibayama and Wen Luo and Mo Li and Tirani, {Farzaneh Fadaei} and Rosario Scopelliti and Sachin Kinge and Andreas Z{\"u}ttel and Dunru Zhu and Bao Zhang and Yaqing Feng and Zhaofu Fei and Nazeeruddin, {Mohammad Khaja} and Dyson, {Paul J.}",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2022",

month = apr,

day = "20",

doi = "10.1016/j.xcrp.2022.100848",

language = "英语",

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journal = "Cell Reports Physical Science",

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Gao, XX, Ding, B, Zhang, Y, Zhang, S, Turnell-Ritson, RC, Kanda, H, Abuhelaiqa, M, Shibayama, N, Luo, W, Li, M, Tirani, FF, Scopelliti, R, Kinge, S, Züttel, A, Zhu, D, Zhang, B, Feng, Y, Fei, Z, Nazeeruddin, MK & Dyson, PJ 2022, 'Halide exchange in the passivation of perovskite solar cells with functionalized ionic liquids', Cell Reports Physical Science, vol. 3, no. 4, 100848. https://doi.org/10.1016/j.xcrp.2022.100848

TY - JOUR

T1 - Halide exchange in the passivation of perovskite solar cells with functionalized ionic liquids

AU - Gao, Xiao Xin

AU - Ding, Bin

AU - Zhang, Yi

AU - Zhang, Shunlin

AU - Turnell-Ritson, Roland Christopher

AU - Kanda, Hiroyuki

AU - Abuhelaiqa, Mousa

AU - Shibayama, Naoyuki

AU - Luo, Wen

AU - Li, Mo

AU - Tirani, Farzaneh Fadaei

AU - Scopelliti, Rosario

AU - Kinge, Sachin

AU - Züttel, Andreas

AU - Zhu, Dunru

AU - Zhang, Bao

AU - Feng, Yaqing

AU - Fei, Zhaofu

AU - Nazeeruddin, Mohammad Khaja

AU - Dyson, Paul J.

PY - 2022/4/20

Y1 - 2022/4/20

N2 - Applying additives to perovskite precursor solutions is an effective way to passivate perovskite films for the construction of perovskite solar cells (PSCs) with increased power-conversion efficiencies (PCEs) and enhanced stabilities. Ionic liquids (ILs) with halide anions have been applied as additives. Here, we report the application of imidazolium-based ILs, containing the nitrile functionality in the cation and chloride anion, as additives for triple-cation (Cs+, formamidinium [FA+], methylammonium [MA+]) PSCs. We found that a Cl-I exchange takes place between the I− anion of the triple-cation precursors and the Cl− anion of the IL. The fabricated PSCs containing perovskite films with the ILs show high PCEs (in the best case 22.86%) and high stabilities, with the unencapsulated devices retaining about 95% of their original efficiencies after 1,000 h. The mechanistic basis for the passivation effect of the IL additives in the perovskite films is described.

AB - Applying additives to perovskite precursor solutions is an effective way to passivate perovskite films for the construction of perovskite solar cells (PSCs) with increased power-conversion efficiencies (PCEs) and enhanced stabilities. Ionic liquids (ILs) with halide anions have been applied as additives. Here, we report the application of imidazolium-based ILs, containing the nitrile functionality in the cation and chloride anion, as additives for triple-cation (Cs+, formamidinium [FA+], methylammonium [MA+]) PSCs. We found that a Cl-I exchange takes place between the I− anion of the triple-cation precursors and the Cl− anion of the IL. The fabricated PSCs containing perovskite films with the ILs show high PCEs (in the best case 22.86%) and high stabilities, with the unencapsulated devices retaining about 95% of their original efficiencies after 1,000 h. The mechanistic basis for the passivation effect of the IL additives in the perovskite films is described.

KW - CN

KW - additives

KW - ionic liquid

KW - nitrile group

KW - perovskite solar cells

KW - stability

UR - http://www.scopus.com/inward/record.url?scp=85128582306&partnerID=8YFLogxK

U2 - 10.1016/j.xcrp.2022.100848

DO - 10.1016/j.xcrp.2022.100848

M3 - 文章

AN - SCOPUS:85128582306

SN - 2666-3864

VL - 3

JO - Cell Reports Physical Science

JF - Cell Reports Physical Science

IS - 4

M1 - 100848

ER -

Halide exchange in the passivation of perovskite solar cells with functionalized ionic liquids

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