Stable and Lead-Safe Polyphenol-Encapsulated Perovskite Solar Cells

Shahriyar Safat Dipta; Andrew J. Christofferson; Priyank V. Kumar; Varun Kundi; Muhammad Hanif; Jianbo Tang; Nieves Flores; Kourosh Kalantar-Zadeh; Ashraf Uddin; Md Arifur Rahim

doi:10.1002/advs.202403057

Stable and Lead-Safe Polyphenol-Encapsulated Perovskite Solar Cells

Shahriyar Safat Dipta, Andrew J. Christofferson, Priyank V. Kumar, Varun Kundi, Muhammad Hanif, Jianbo Tang, Nieves Flores, Kourosh Kalantar-Zadeh, Ashraf Uddin, Md Arifur Rahim

Chemical & Biological Engineering

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

1 Citation (Scopus)

Abstract

Lead (Pb) halide perovskite solar cells (PSCs) exhibit impressive power conversion efficiencies close to those of their silicon counterparts. However, they suffer from moisture instability and Pb safety concerns. Previous studies have endeavoured to address these issues independently, yielding minimal advancements. Here, a general nanoencapsulation platform using natural polyphenols is reported for Pb-halide PSCs that simultaneously addresses both challenges. The polyphenol-based encapsulant is solution-processable, inexpensive (≈1.6 USD m⁻²), and requires only 5 min for the entire process, highlighting its potential scalability. The encapsulated devices with a power conversion efficiency of 20.7% retained up to 80% of their peak performance for 2000 h and up to 70% for 7000 h. Under simulated rainfall conditions, the encapsulant rich in catechol groups captures the Pb ions released from the degraded perovskites via coordination, keeping the Pb levels within the safe drinking water threshold of 15 ppb.

Original language	English
Article number	2403057
Number of pages	7
Journal	Advanced Science
Volume	11
Issue number	31
DOIs	https://doi.org/10.1002/advs.202403057
Publication status	Published - 21 Aug 2024

Keywords

encapsulation
lead toxicity
Perovskite solar cells
polyphenol coating
stability

UN SDGs

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

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10.1002/advs.202403057Licence: CC BY

Cite this

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title = "Stable and Lead-Safe Polyphenol-Encapsulated Perovskite Solar Cells",

abstract = "Lead (Pb) halide perovskite solar cells (PSCs) exhibit impressive power conversion efficiencies close to those of their silicon counterparts. However, they suffer from moisture instability and Pb safety concerns. Previous studies have endeavoured to address these issues independently, yielding minimal advancements. Here, a general nanoencapsulation platform using natural polyphenols is reported for Pb-halide PSCs that simultaneously addresses both challenges. The polyphenol-based encapsulant is solution-processable, inexpensive (≈1.6 USD m−2), and requires only 5 min for the entire process, highlighting its potential scalability. The encapsulated devices with a power conversion efficiency of 20.7% retained up to 80% of their peak performance for 2000 h and up to 70% for 7000 h. Under simulated rainfall conditions, the encapsulant rich in catechol groups captures the Pb ions released from the degraded perovskites via coordination, keeping the Pb levels within the safe drinking water threshold of 15 ppb.",

keywords = "encapsulation, lead toxicity, Perovskite solar cells, polyphenol coating, stability",

author = "Dipta, {Shahriyar Safat} and Christofferson, {Andrew J.} and Kumar, {Priyank V.} and Varun Kundi and Muhammad Hanif and Jianbo Tang and Nieves Flores and Kourosh Kalantar-Zadeh and Ashraf Uddin and Rahim, {Md Arifur}",

note = "Funding Information: The authors would like to acknowledge the Australian Research Council (ARC), the Discovery Early Career Researcher Award (DE210101162), and the Discovery Project (DP210100904) grants for financial support for this study. The authors also acknowledge the contribution of supercomputing resources from the National Computational Infrastructure (NCI), supported by the Australian Government, and Pawsey Supercomputer Centre. The authors also acknowledge technical assistance from the solid\u2010state and elemental analysis unit (Mark Wainwright Analytical Centre, UNSW Sydney). Publisher Copyright: {\textcopyright} 2024 The Author(s). Advanced Science published by Wiley-VCH GmbH.",

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AU - Dipta, Shahriyar Safat

AU - Christofferson, Andrew J.

AU - Kumar, Priyank V.

AU - Kundi, Varun

AU - Hanif, Muhammad

AU - Tang, Jianbo

AU - Flores, Nieves

AU - Kalantar-Zadeh, Kourosh

AU - Uddin, Ashraf

AU - Rahim, Md Arifur

N1 - Funding Information: The authors would like to acknowledge the Australian Research Council (ARC), the Discovery Early Career Researcher Award (DE210101162), and the Discovery Project (DP210100904) grants for financial support for this study. The authors also acknowledge the contribution of supercomputing resources from the National Computational Infrastructure (NCI), supported by the Australian Government, and Pawsey Supercomputer Centre. The authors also acknowledge technical assistance from the solid\u2010state and elemental analysis unit (Mark Wainwright Analytical Centre, UNSW Sydney). Publisher Copyright: © 2024 The Author(s). Advanced Science published by Wiley-VCH GmbH.

PY - 2024/8/21

Y1 - 2024/8/21

N2 - Lead (Pb) halide perovskite solar cells (PSCs) exhibit impressive power conversion efficiencies close to those of their silicon counterparts. However, they suffer from moisture instability and Pb safety concerns. Previous studies have endeavoured to address these issues independently, yielding minimal advancements. Here, a general nanoencapsulation platform using natural polyphenols is reported for Pb-halide PSCs that simultaneously addresses both challenges. The polyphenol-based encapsulant is solution-processable, inexpensive (≈1.6 USD m−2), and requires only 5 min for the entire process, highlighting its potential scalability. The encapsulated devices with a power conversion efficiency of 20.7% retained up to 80% of their peak performance for 2000 h and up to 70% for 7000 h. Under simulated rainfall conditions, the encapsulant rich in catechol groups captures the Pb ions released from the degraded perovskites via coordination, keeping the Pb levels within the safe drinking water threshold of 15 ppb.

AB - Lead (Pb) halide perovskite solar cells (PSCs) exhibit impressive power conversion efficiencies close to those of their silicon counterparts. However, they suffer from moisture instability and Pb safety concerns. Previous studies have endeavoured to address these issues independently, yielding minimal advancements. Here, a general nanoencapsulation platform using natural polyphenols is reported for Pb-halide PSCs that simultaneously addresses both challenges. The polyphenol-based encapsulant is solution-processable, inexpensive (≈1.6 USD m−2), and requires only 5 min for the entire process, highlighting its potential scalability. The encapsulated devices with a power conversion efficiency of 20.7% retained up to 80% of their peak performance for 2000 h and up to 70% for 7000 h. Under simulated rainfall conditions, the encapsulant rich in catechol groups captures the Pb ions released from the degraded perovskites via coordination, keeping the Pb levels within the safe drinking water threshold of 15 ppb.

KW - encapsulation

KW - lead toxicity

KW - Perovskite solar cells

KW - polyphenol coating

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Stable and Lead-Safe Polyphenol-Encapsulated Perovskite Solar Cells

Abstract

Keywords

UN SDGs

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