Substrate Modifications for Stability Improvements of Flexible Perovskite Solar Cells

Jingyang Lin; Yanling He; Hongbo Mo; Abdul Khaleed; Zhilin Ren; Yin Li; Yingnan Cao; Jinyao Tang; Wei-Ting Wang; Shien-Ping Feng; Zhao Sun; Wen-Di Li; Tao Zhu; Gang Li; Alan Man Ching Ng; Aleksandra B. Djurišić

doi:10.1002/ente.202300958

Substrate Modifications for Stability Improvements of Flexible Perovskite Solar Cells

Jingyang Lin, Yanling He, Hongbo Mo, Abdul Khaleed, Zhilin Ren, Yin Li, Yingnan Cao, Jinyao Tang, Wei-Ting Wang, Shien-Ping Feng, Zhao Sun, Wen-Di Li, Tao Zhu, Gang Li, Alan Man Ching Ng^*, Aleksandra B. Djurišić^*

^*Corresponding author for this work

Department of Systems Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

8 Citations (Scopus)

42 Downloads (CityUHK Scholars)

Abstract

Flexible perovskite solar cells (fPSCs) prepared on flexible plastic substrates exhibit poor stability under illumination in ambient, due to inferior gas barrier properties of plastic substrates. Herein, we investigated effect of different modifications of the back surface of the substrate to improve stability under illumination in ambient. T₈₀ under simulated solar illumination at maximum power point in ambient (ISOS-L-1) can be increased from 80 h to over 350 h with the deposition of a single layer (by spin-coating or by atomic layer deposition (ALD)). While ALD layers resulted in the best T₈₀ value and significant reduction of the oxygen transmission rate compared to other modifications even for very low film thickness (≈10 nm), a simple solution-processed spin-on-glass barrier layer also enables significant (more than 4 times) improvement in device stability. This work illustrates the importance of barrier layers for decreasing the ingress of oxygen and moisture into fPSCs through the plastic substrate. © 2023 The Authors. Energy Technology published by Wiley-VCH GmbH.

Original language	English
Article number	2300958
Journal	Energy Technology
Volume	12
Issue number	5
Online published	11 Jan 2024
DOIs	https://doi.org/10.1002/ente.202300958
Publication status	Published - May 2024

Funding

This work is supported by RGC CRF grant C7018-20G, Seed Funding for Basic Research and Seed Funding for Strategic Interdisciplinary Research Scheme of the University of Hong Kong.

Research Keywords

flexible perovskite solar cells
solar cell stability
thin film barrier coatings

Publisher's Copyright Statement

This full text is made available under CC-BY-NC 4.0. https://creativecommons.org/licenses/by-nc/4.0/

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

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title = "Substrate Modifications for Stability Improvements of Flexible Perovskite Solar Cells",

abstract = "Flexible perovskite solar cells (fPSCs) prepared on flexible plastic substrates exhibit poor stability under illumination in ambient, due to inferior gas barrier properties of plastic substrates. Herein, we investigated effect of different modifications of the back surface of the substrate to improve stability under illumination in ambient. T80 under simulated solar illumination at maximum power point in ambient (ISOS-L-1) can be increased from 80 h to over 350 h with the deposition of a single layer (by spin-coating or by atomic layer deposition (ALD)). While ALD layers resulted in the best T80 value and significant reduction of the oxygen transmission rate compared to other modifications even for very low film thickness (≈10 nm), a simple solution-processed spin-on-glass barrier layer also enables significant (more than 4 times) improvement in device stability. This work illustrates the importance of barrier layers for decreasing the ingress of oxygen and moisture into fPSCs through the plastic substrate. {\textcopyright} 2023 The Authors. Energy Technology published by Wiley-VCH GmbH.",

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author = "Jingyang Lin and Yanling He and Hongbo Mo and Abdul Khaleed and Zhilin Ren and Yin Li and Yingnan Cao and Jinyao Tang and Wei-Ting Wang and Shien-Ping Feng and Zhao Sun and Wen-Di Li and Tao Zhu and Gang Li and Ng, {Alan Man Ching} and Djuri{\v s}i{\'c}, {Aleksandra B.}",

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T1 - Substrate Modifications for Stability Improvements of Flexible Perovskite Solar Cells

AU - Lin, Jingyang

AU - He, Yanling

AU - Mo, Hongbo

AU - Khaleed, Abdul

AU - Ren, Zhilin

AU - Li, Yin

AU - Cao, Yingnan

AU - Tang, Jinyao

AU - Wang, Wei-Ting

AU - Feng, Shien-Ping

AU - Sun, Zhao

AU - Li, Wen-Di

AU - Zhu, Tao

AU - Li, Gang

AU - Ng, Alan Man Ching

AU - Djurišić, Aleksandra B.

PY - 2024/5

Y1 - 2024/5

N2 - Flexible perovskite solar cells (fPSCs) prepared on flexible plastic substrates exhibit poor stability under illumination in ambient, due to inferior gas barrier properties of plastic substrates. Herein, we investigated effect of different modifications of the back surface of the substrate to improve stability under illumination in ambient. T80 under simulated solar illumination at maximum power point in ambient (ISOS-L-1) can be increased from 80 h to over 350 h with the deposition of a single layer (by spin-coating or by atomic layer deposition (ALD)). While ALD layers resulted in the best T80 value and significant reduction of the oxygen transmission rate compared to other modifications even for very low film thickness (≈10 nm), a simple solution-processed spin-on-glass barrier layer also enables significant (more than 4 times) improvement in device stability. This work illustrates the importance of barrier layers for decreasing the ingress of oxygen and moisture into fPSCs through the plastic substrate. © 2023 The Authors. Energy Technology published by Wiley-VCH GmbH.

AB - Flexible perovskite solar cells (fPSCs) prepared on flexible plastic substrates exhibit poor stability under illumination in ambient, due to inferior gas barrier properties of plastic substrates. Herein, we investigated effect of different modifications of the back surface of the substrate to improve stability under illumination in ambient. T80 under simulated solar illumination at maximum power point in ambient (ISOS-L-1) can be increased from 80 h to over 350 h with the deposition of a single layer (by spin-coating or by atomic layer deposition (ALD)). While ALD layers resulted in the best T80 value and significant reduction of the oxygen transmission rate compared to other modifications even for very low film thickness (≈10 nm), a simple solution-processed spin-on-glass barrier layer also enables significant (more than 4 times) improvement in device stability. This work illustrates the importance of barrier layers for decreasing the ingress of oxygen and moisture into fPSCs through the plastic substrate. © 2023 The Authors. Energy Technology published by Wiley-VCH GmbH.

KW - flexible perovskite solar cells

KW - solar cell stability

KW - thin film barrier coatings

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Substrate Modifications for Stability Improvements of Flexible Perovskite Solar Cells

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