Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells.

Hang Yin; Chujun Zhang; Hanlin Hu; Safakath Karuthedath; Yajun Gao; Hua Tang; Cenqi Yan; Li Cui; Patrick W K Fong; Zhuoqiong Zhang; Yaxin Gao; Junliang Yang; Zuo Xiao; Liming Ding; Frédéric Laquai; Shu Kong So; Gang Li

doi:10.1021/acsami.9b12833

Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells.

Hang Yin, Chujun Zhang, Hanlin Hu, Safakath Karuthedath, Yajun Gao, Hua Tang, Cenqi Yan, Li Cui, Patrick W K Fong, Zhuoqiong Zhang, Yaxin Gao, Junliang Yang, Zuo Xiao, Liming Ding, Frédéric Laquai, Shu Kong So, Gang Li

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

29 Scopus citations

Abstract

The near-infrared (NIR) absorbing fused-ring electron acceptor, COi8DFIC, has demonstrated very good photovoltaic performance when combined with PTB7-Th as a donor in binary organic solar cells (OSCs). In this work, the NIR acceptor was added to state-of-the-art PBDBT-2F:IT4F-based solar cells as a third component, leading to (i) an efficiency increase of the ternary devices compared to the binary solar cells in the presence of the highly crystalline COi8DFIC acceptor and (ii) much-improved photostability under 1-sun illumination. The electron transport properties were investigated and revealed the origin of the enhanced device performance. Compared to the binary cells, the optimized ternary PBDBT-2F:COi8DFIC:IT4F blends exhibit improved electron transport properties in the presence of 10% COi8DFIC, which is attributed to improved COi8DFIC molecular packing. Furthermore, transient absorption spectroscopy revealed a slow recombination of charge carriers in the ternary blend. The improved electron transport properties were preserved in the ternary OSC upon aging, while in the binary devices they seriously deteriorated after simulated 1-sun illumination of 240 h. Our work demonstrates a simple approach to enhance both OSC efficiency and photostability.

Original language	English (US)
Pages (from-to)	48095-48102
Number of pages	8
Journal	ACS Applied Materials & Interfaces
Volume	11
Issue number	51
DOIs	https://doi.org/10.1021/acsami.9b12833
State	Published - Nov 15 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: G.L. thanks the support from the Research Grants Council of Hong Kong (Project Nos. 15218517, C5037-18G), Shenzhen Science and Technology Innovation Commission (Project No. JCYJ20170413154602102), and the funding for Project of Strategic Importance provided by the Hong Kong Polytechnic University (Project Code: 1-ZE29). S.K.S. would like to acknowledge the support from the Research Grant Council of Hong Kong under Grant #NSFC/RGC N-HKBU 202/16 andthe Research Committee of HKBU under Grant #RC-ICRS/ 15−16/4A-SSK. The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).

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10.1021/acsami.9b12833

https://repository.kaust.edu.sa/bitstream/10754/660572/1/Hang%20et%20al.%20Manuscript_accepted.pdf

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Yin, H., Zhang, C., Hu, H., Karuthedath, S., Gao, Y., Tang, H., Yan, C., Cui, L., Fong, P. W. K., Zhang, Z., Gao, Y., Yang, J., Xiao, Z., Ding, L., Laquai, F., So, S. K., & Li, G. (2019). Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells. ACS Applied Materials & Interfaces, 11(51), 48095-48102. https://doi.org/10.1021/acsami.9b12833

@article{56a2706e0cc84c19aea6844e20195a11,

title = "Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells.",

abstract = "The near-infrared (NIR) absorbing fused-ring electron acceptor, COi8DFIC, has demonstrated very good photovoltaic performance when combined with PTB7-Th as a donor in binary organic solar cells (OSCs). In this work, the NIR acceptor was added to state-of-the-art PBDBT-2F:IT4F-based solar cells as a third component, leading to (i) an efficiency increase of the ternary devices compared to the binary solar cells in the presence of the highly crystalline COi8DFIC acceptor and (ii) much-improved photostability under 1-sun illumination. The electron transport properties were investigated and revealed the origin of the enhanced device performance. Compared to the binary cells, the optimized ternary PBDBT-2F:COi8DFIC:IT4F blends exhibit improved electron transport properties in the presence of 10% COi8DFIC, which is attributed to improved COi8DFIC molecular packing. Furthermore, transient absorption spectroscopy revealed a slow recombination of charge carriers in the ternary blend. The improved electron transport properties were preserved in the ternary OSC upon aging, while in the binary devices they seriously deteriorated after simulated 1-sun illumination of 240 h. Our work demonstrates a simple approach to enhance both OSC efficiency and photostability.",

author = "Hang Yin and Chujun Zhang and Hanlin Hu and Safakath Karuthedath and Yajun Gao and Hua Tang and Cenqi Yan and Li Cui and Fong, {Patrick W K} and Zhuoqiong Zhang and Yaxin Gao and Junliang Yang and Zuo Xiao and Liming Ding and Fr{\'e}d{\'e}ric Laquai and So, {Shu Kong} and Gang Li",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: G.L. thanks the support from the Research Grants Council of Hong Kong (Project Nos. 15218517, C5037-18G), Shenzhen Science and Technology Innovation Commission (Project No. JCYJ20170413154602102), and the funding for Project of Strategic Importance provided by the Hong Kong Polytechnic University (Project Code: 1-ZE29). S.K.S. would like to acknowledge the support from the Research Grant Council of Hong Kong under Grant #NSFC/RGC N-HKBU 202/16 andthe Research Committee of HKBU under Grant #RC-ICRS/ 15−16/4A-SSK. The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).",

year = "2019",

month = nov,

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doi = "10.1021/acsami.9b12833",

language = "English (US)",

volume = "11",

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journal = "ACS Applied Materials & Interfaces",

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Yin, H, Zhang, C, Hu, H, Karuthedath, S, Gao, Y, Tang, H, Yan, C, Cui, L, Fong, PWK, Zhang, Z, Gao, Y, Yang, J, Xiao, Z, Ding, L, Laquai, F, So, SK & Li, G 2019, 'Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells.', ACS Applied Materials & Interfaces, vol. 11, no. 51, pp. 48095-48102. https://doi.org/10.1021/acsami.9b12833

TY - JOUR

T1 - Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells.

AU - Yin, Hang

AU - Zhang, Chujun

AU - Hu, Hanlin

AU - Karuthedath, Safakath

AU - Gao, Yajun

AU - Tang, Hua

AU - Yan, Cenqi

AU - Cui, Li

AU - Fong, Patrick W K

AU - Zhang, Zhuoqiong

AU - Gao, Yaxin

AU - Yang, Junliang

AU - Xiao, Zuo

AU - Ding, Liming

AU - Laquai, Frédéric

AU - So, Shu Kong

AU - Li, Gang

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: G.L. thanks the support from the Research Grants Council of Hong Kong (Project Nos. 15218517, C5037-18G), Shenzhen Science and Technology Innovation Commission (Project No. JCYJ20170413154602102), and the funding for Project of Strategic Importance provided by the Hong Kong Polytechnic University (Project Code: 1-ZE29). S.K.S. would like to acknowledge the support from the Research Grant Council of Hong Kong under Grant #NSFC/RGC N-HKBU 202/16 andthe Research Committee of HKBU under Grant #RC-ICRS/ 15−16/4A-SSK. The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST).

PY - 2019/11/15

Y1 - 2019/11/15

N2 - The near-infrared (NIR) absorbing fused-ring electron acceptor, COi8DFIC, has demonstrated very good photovoltaic performance when combined with PTB7-Th as a donor in binary organic solar cells (OSCs). In this work, the NIR acceptor was added to state-of-the-art PBDBT-2F:IT4F-based solar cells as a third component, leading to (i) an efficiency increase of the ternary devices compared to the binary solar cells in the presence of the highly crystalline COi8DFIC acceptor and (ii) much-improved photostability under 1-sun illumination. The electron transport properties were investigated and revealed the origin of the enhanced device performance. Compared to the binary cells, the optimized ternary PBDBT-2F:COi8DFIC:IT4F blends exhibit improved electron transport properties in the presence of 10% COi8DFIC, which is attributed to improved COi8DFIC molecular packing. Furthermore, transient absorption spectroscopy revealed a slow recombination of charge carriers in the ternary blend. The improved electron transport properties were preserved in the ternary OSC upon aging, while in the binary devices they seriously deteriorated after simulated 1-sun illumination of 240 h. Our work demonstrates a simple approach to enhance both OSC efficiency and photostability.

AB - The near-infrared (NIR) absorbing fused-ring electron acceptor, COi8DFIC, has demonstrated very good photovoltaic performance when combined with PTB7-Th as a donor in binary organic solar cells (OSCs). In this work, the NIR acceptor was added to state-of-the-art PBDBT-2F:IT4F-based solar cells as a third component, leading to (i) an efficiency increase of the ternary devices compared to the binary solar cells in the presence of the highly crystalline COi8DFIC acceptor and (ii) much-improved photostability under 1-sun illumination. The electron transport properties were investigated and revealed the origin of the enhanced device performance. Compared to the binary cells, the optimized ternary PBDBT-2F:COi8DFIC:IT4F blends exhibit improved electron transport properties in the presence of 10% COi8DFIC, which is attributed to improved COi8DFIC molecular packing. Furthermore, transient absorption spectroscopy revealed a slow recombination of charge carriers in the ternary blend. The improved electron transport properties were preserved in the ternary OSC upon aging, while in the binary devices they seriously deteriorated after simulated 1-sun illumination of 240 h. Our work demonstrates a simple approach to enhance both OSC efficiency and photostability.

UR - http://hdl.handle.net/10754/660572

UR - https://pubs.acs.org/doi/10.1021/acsami.9b12833

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U2 - 10.1021/acsami.9b12833

DO - 10.1021/acsami.9b12833

M3 - Article

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EP - 48102

JO - ACS Applied Materials & Interfaces

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Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells.

Abstract

Bibliographical note

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