Simultaneous improvement to performance and stability of perovskite solar cells through incorporation of imidazolium-based ionic liquid

M. Thambidurai; Herlina Arianita Dewi; Anil Kanwat; Srilakshmi Subramanian Periyal; Nur Fadilah Jamaludin; Annalisa Bruno; Nripan Mathews; Cuong Dang; Hung D. Nguyen

doi:10.1016/j.jpowsour.2023.232874

Simultaneous improvement to performance and stability of perovskite solar cells through incorporation of imidazolium-based ionic liquid

M. Thambidurai, Herlina Arianita Dewi, Anil Kanwat, Srilakshmi Subramanian Periyal, Nur Fadilah Jamaludin, Annalisa Bruno, Nripan Mathews, Cuong Dang^*, Hung D. Nguyen^*

^*Corresponding author for this work

Nanyang Technological University

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

7 Citations (Scopus)

Abstract

Despite the meteoric rise of perovskite solar cell (PSC) efficiency in recent years, commercialization of this technology is still limited by issues pertaining to perovskite instability. Herein, a novel ionic liquid (IL) – 1-ethyl-3-methylimidazolium chloride (EMIC) additive is shown to be beneficial in enhancing perovskite's ambient and operational stability. Not only does it improve crystallinity and smoothen surface topography, but the simultaneous increase in carrier lifetimes, reduction in defect density as well as improvement to interfacial band energy alignment have contributed extensively towards promoting higher power conversion efficiency (PCE) and moisture/thermal stability of the EMIC-based PCSs. The champion, unencapsulated EMIC-based PSC yields a PCE of 20.15% and retains 89% of its initial PCE after 1440 h of storage under ambient conditions (30% Relative humidity (RH), 25 °C) and retains 65% of its initial PCE after 600 h of thermal aging (85 °C, 10% RH).

Original language	English
Article number	232874
Journal	Journal of Power Sources
Volume	564
DOIs	https://doi.org/10.1016/j.jpowsour.2023.232874
Publication status	Published - Apr 30 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 Elsevier B.V.

ASJC Scopus Subject Areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

Keywords

1-Ethyl-3-methylimidazolium chloride (EMIC) ionic liquid
Additive engineering
Defect passivation
Moisture/thermal stability
Perovskite solar cells

UN SDGs

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

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10.1016/j.jpowsour.2023.232874

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title = "Simultaneous improvement to performance and stability of perovskite solar cells through incorporation of imidazolium-based ionic liquid",

abstract = "Despite the meteoric rise of perovskite solar cell (PSC) efficiency in recent years, commercialization of this technology is still limited by issues pertaining to perovskite instability. Herein, a novel ionic liquid (IL) – 1-ethyl-3-methylimidazolium chloride (EMIC) additive is shown to be beneficial in enhancing perovskite's ambient and operational stability. Not only does it improve crystallinity and smoothen surface topography, but the simultaneous increase in carrier lifetimes, reduction in defect density as well as improvement to interfacial band energy alignment have contributed extensively towards promoting higher power conversion efficiency (PCE) and moisture/thermal stability of the EMIC-based PCSs. The champion, unencapsulated EMIC-based PSC yields a PCE of 20.15% and retains 89% of its initial PCE after 1440 h of storage under ambient conditions (30% Relative humidity (RH), 25 °C) and retains 65% of its initial PCE after 600 h of thermal aging (85 °C, 10% RH).",

keywords = "1-Ethyl-3-methylimidazolium chloride (EMIC) ionic liquid, Additive engineering, Defect passivation, Moisture/thermal stability, Perovskite solar cells",

author = "M. Thambidurai and Dewi, {Herlina Arianita} and Anil Kanwat and Periyal, {Srilakshmi Subramanian} and Jamaludin, {Nur Fadilah} and Annalisa Bruno and Nripan Mathews and Cuong Dang and Nguyen, {Hung D.}",

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doi = "10.1016/j.jpowsour.2023.232874",

language = "English",

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T1 - Simultaneous improvement to performance and stability of perovskite solar cells through incorporation of imidazolium-based ionic liquid

AU - Thambidurai, M.

AU - Dewi, Herlina Arianita

AU - Kanwat, Anil

AU - Periyal, Srilakshmi Subramanian

AU - Jamaludin, Nur Fadilah

AU - Bruno, Annalisa

AU - Mathews, Nripan

AU - Dang, Cuong

AU - Nguyen, Hung D.

PY - 2023/4/30

Y1 - 2023/4/30

N2 - Despite the meteoric rise of perovskite solar cell (PSC) efficiency in recent years, commercialization of this technology is still limited by issues pertaining to perovskite instability. Herein, a novel ionic liquid (IL) – 1-ethyl-3-methylimidazolium chloride (EMIC) additive is shown to be beneficial in enhancing perovskite's ambient and operational stability. Not only does it improve crystallinity and smoothen surface topography, but the simultaneous increase in carrier lifetimes, reduction in defect density as well as improvement to interfacial band energy alignment have contributed extensively towards promoting higher power conversion efficiency (PCE) and moisture/thermal stability of the EMIC-based PCSs. The champion, unencapsulated EMIC-based PSC yields a PCE of 20.15% and retains 89% of its initial PCE after 1440 h of storage under ambient conditions (30% Relative humidity (RH), 25 °C) and retains 65% of its initial PCE after 600 h of thermal aging (85 °C, 10% RH).

AB - Despite the meteoric rise of perovskite solar cell (PSC) efficiency in recent years, commercialization of this technology is still limited by issues pertaining to perovskite instability. Herein, a novel ionic liquid (IL) – 1-ethyl-3-methylimidazolium chloride (EMIC) additive is shown to be beneficial in enhancing perovskite's ambient and operational stability. Not only does it improve crystallinity and smoothen surface topography, but the simultaneous increase in carrier lifetimes, reduction in defect density as well as improvement to interfacial band energy alignment have contributed extensively towards promoting higher power conversion efficiency (PCE) and moisture/thermal stability of the EMIC-based PCSs. The champion, unencapsulated EMIC-based PSC yields a PCE of 20.15% and retains 89% of its initial PCE after 1440 h of storage under ambient conditions (30% Relative humidity (RH), 25 °C) and retains 65% of its initial PCE after 600 h of thermal aging (85 °C, 10% RH).

KW - 1-Ethyl-3-methylimidazolium chloride (EMIC) ionic liquid

KW - Additive engineering

KW - Defect passivation

KW - Moisture/thermal stability

KW - Perovskite solar cells

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Simultaneous improvement to performance and stability of perovskite solar cells through incorporation of imidazolium-based ionic liquid

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

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