Highly Efficient Ternary All-Polymer Solar Cells with Enhanced Stability

Kui Feng; Ziang Wu; Mengyao Su; Suxiang Ma; Yongqiang Shi; Kun Yang; Yang Wang; Yujie Zhang; Weipeng Sun; Xing Cheng; Limin Huang; Jie Min; Han Young Woo; Xugang Guo

doi:10.1002/adfm.202008494

Highly Efficient Ternary All-Polymer Solar Cells with Enhanced Stability

Kui Feng, Ziang Wu, Mengyao Su, Suxiang Ma, Yongqiang Shi, Kun Yang, Yang Wang, Yujie Zhang, Weipeng Sun, Xing Cheng, Limin Huang, Jie Min, Han Young Woo, Xugang Guo

Department of Chemistry

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

41 Citations (Scopus)

Abstract

Developing organic solar cells (OSCs) based on a ternary active layer is one of the most effective approaches to maximize light harvesting and improve their photovoltaic performance. However, this strategy meets very limited success in all-polymer solar cells (all-PSCs) due to the scarcity of narrow bandgap polymer acceptors and the challenge of morphology optimization. In fact, the power conversion efficiencies (PCEs) of ternary all-PSCs even lag behind binary all-PSCs. Herein, highly efficient ternary all-PSCs are realized based on an ultranarrow bandgap (ultra-NBG) polymer acceptor DCNBT-TPC, a medium bandgap polymer donor PTB7-Th, and a wide bandgap polymer donor PBDB-T. The optimized ternary all-PSCs yield an excellent PCE of 12.1% with a remarkable short-circuit current density of 21.9 mA cm⁻². In fact, this PCE is the highest value reported for ternary all-PSCs and is much higher than those of the corresponding binary all-PSCs. Moreover, the optimized ternary all-PSCs show a photostability with ≈68% of the initial PCE retained after 400 h illumination, which is more stable than the binary all-PSCs. This work demonstrates that the utilization of a ternary all-polymer system based on ultra-NBG polymer acceptor blended with compatible polymer donors is an effective strategy to advance the field of all-PSCs.

Original language	English
Article number	2008494
Journal	Advanced Functional Materials
Volume	31
Issue number	5
DOIs	https://doi.org/10.1002/adfm.202008494
Publication status	Published - 2021 Jan 27

Bibliographical note

Funding Information:
K.F. acknowledges the financial support by Shenzhen Basic Research Fund (No. JCYJ20190809162003662) and the China Postdoctoral Science Foundation (No. 2019M662696). X.G. is thankful for the financial support by the Shenzhen Basic Research Fund (Nos. JCYJ20180504165709042 and JCYJ20170817105905899). H.Y.W. is grateful for the financial support from the National Research Foundation (NRF) of Korea (NRF-2016M1A2A2940911 and 2019R1A6A1A11044070). The calculation is supported by the Center for Computational Science and Engineering at SUSTech. The authors also acknowledge the assistance of SUSTech Core Research Facilities.

Funding Information:
K.F. acknowledges the financial support by Shenzhen Basic Research Fund (No. JCYJ20190809162003662) and the China Postdoctoral Science Foundation (No. 2019M662696). X.G. is thankful for the financial support by the Shenzhen Basic Research Fund (Nos. JCYJ20180504165709042 and JCYJ20170817105905899). H.Y.W. is grateful for the financial support from the National Research Foundation (NRF) of Korea (NRF‐2016M1A2A2940911 and 2019R1A6A1A11044070). The calculation is supported by the Center for Computational Science and Engineering at SUSTech. The authors also acknowledge the assistance of SUSTech Core Research Facilities.

Publisher Copyright:
© 2020 Wiley-VCH GmbH

Keywords

all-polymer solar cells
complementary absorption
polymer acceptors
stability
ternary solar cells

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Chemistry(all)
Materials Science(all)
Electrochemistry
Biomaterials

UN SDGs

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

Access to Document

10.1002/adfm.202008494

Cite this

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title = "Highly Efficient Ternary All-Polymer Solar Cells with Enhanced Stability",

abstract = "Developing organic solar cells (OSCs) based on a ternary active layer is one of the most effective approaches to maximize light harvesting and improve their photovoltaic performance. However, this strategy meets very limited success in all-polymer solar cells (all-PSCs) due to the scarcity of narrow bandgap polymer acceptors and the challenge of morphology optimization. In fact, the power conversion efficiencies (PCEs) of ternary all-PSCs even lag behind binary all-PSCs. Herein, highly efficient ternary all-PSCs are realized based on an ultranarrow bandgap (ultra-NBG) polymer acceptor DCNBT-TPC, a medium bandgap polymer donor PTB7-Th, and a wide bandgap polymer donor PBDB-T. The optimized ternary all-PSCs yield an excellent PCE of 12.1% with a remarkable short-circuit current density of 21.9 mA cm−2. In fact, this PCE is the highest value reported for ternary all-PSCs and is much higher than those of the corresponding binary all-PSCs. Moreover, the optimized ternary all-PSCs show a photostability with ≈68% of the initial PCE retained after 400 h illumination, which is more stable than the binary all-PSCs. This work demonstrates that the utilization of a ternary all-polymer system based on ultra-NBG polymer acceptor blended with compatible polymer donors is an effective strategy to advance the field of all-PSCs.",

keywords = "all-polymer solar cells, complementary absorption, polymer acceptors, stability, ternary solar cells",

author = "Kui Feng and Ziang Wu and Mengyao Su and Suxiang Ma and Yongqiang Shi and Kun Yang and Yang Wang and Yujie Zhang and Weipeng Sun and Xing Cheng and Limin Huang and Jie Min and Woo, {Han Young} and Xugang Guo",

note = "Funding Information: K.F. acknowledges the financial support by Shenzhen Basic Research Fund (No. JCYJ20190809162003662) and the China Postdoctoral Science Foundation (No. 2019M662696). X.G. is thankful for the financial support by the Shenzhen Basic Research Fund (Nos. JCYJ20180504165709042 and JCYJ20170817105905899). H.Y.W. is grateful for the financial support from the National Research Foundation (NRF) of Korea (NRF-2016M1A2A2940911 and 2019R1A6A1A11044070). The calculation is supported by the Center for Computational Science and Engineering at SUSTech. The authors also acknowledge the assistance of SUSTech Core Research Facilities. Funding Information: K.F. acknowledges the financial support by Shenzhen Basic Research Fund (No. JCYJ20190809162003662) and the China Postdoctoral Science Foundation (No. 2019M662696). X.G. is thankful for the financial support by the Shenzhen Basic Research Fund (Nos. JCYJ20180504165709042 and JCYJ20170817105905899). H.Y.W. is grateful for the financial support from the National Research Foundation (NRF) of Korea (NRF‐2016M1A2A2940911 and 2019R1A6A1A11044070). The calculation is supported by the Center for Computational Science and Engineering at SUSTech. The authors also acknowledge the assistance of SUSTech Core Research Facilities. Publisher Copyright: {\textcopyright} 2020 Wiley-VCH GmbH",

year = "2021",

month = jan,

day = "27",

doi = "10.1002/adfm.202008494",

language = "English",

volume = "31",

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AU - Feng, Kui

AU - Wu, Ziang

AU - Su, Mengyao

AU - Ma, Suxiang

AU - Shi, Yongqiang

AU - Yang, Kun

AU - Wang, Yang

AU - Zhang, Yujie

AU - Sun, Weipeng

AU - Cheng, Xing

AU - Huang, Limin

AU - Min, Jie

AU - Woo, Han Young

AU - Guo, Xugang

N1 - Funding Information: K.F. acknowledges the financial support by Shenzhen Basic Research Fund (No. JCYJ20190809162003662) and the China Postdoctoral Science Foundation (No. 2019M662696). X.G. is thankful for the financial support by the Shenzhen Basic Research Fund (Nos. JCYJ20180504165709042 and JCYJ20170817105905899). H.Y.W. is grateful for the financial support from the National Research Foundation (NRF) of Korea (NRF-2016M1A2A2940911 and 2019R1A6A1A11044070). The calculation is supported by the Center for Computational Science and Engineering at SUSTech. The authors also acknowledge the assistance of SUSTech Core Research Facilities. Funding Information: K.F. acknowledges the financial support by Shenzhen Basic Research Fund (No. JCYJ20190809162003662) and the China Postdoctoral Science Foundation (No. 2019M662696). X.G. is thankful for the financial support by the Shenzhen Basic Research Fund (Nos. JCYJ20180504165709042 and JCYJ20170817105905899). H.Y.W. is grateful for the financial support from the National Research Foundation (NRF) of Korea (NRF‐2016M1A2A2940911 and 2019R1A6A1A11044070). The calculation is supported by the Center for Computational Science and Engineering at SUSTech. The authors also acknowledge the assistance of SUSTech Core Research Facilities. Publisher Copyright: © 2020 Wiley-VCH GmbH

PY - 2021/1/27

Y1 - 2021/1/27

N2 - Developing organic solar cells (OSCs) based on a ternary active layer is one of the most effective approaches to maximize light harvesting and improve their photovoltaic performance. However, this strategy meets very limited success in all-polymer solar cells (all-PSCs) due to the scarcity of narrow bandgap polymer acceptors and the challenge of morphology optimization. In fact, the power conversion efficiencies (PCEs) of ternary all-PSCs even lag behind binary all-PSCs. Herein, highly efficient ternary all-PSCs are realized based on an ultranarrow bandgap (ultra-NBG) polymer acceptor DCNBT-TPC, a medium bandgap polymer donor PTB7-Th, and a wide bandgap polymer donor PBDB-T. The optimized ternary all-PSCs yield an excellent PCE of 12.1% with a remarkable short-circuit current density of 21.9 mA cm−2. In fact, this PCE is the highest value reported for ternary all-PSCs and is much higher than those of the corresponding binary all-PSCs. Moreover, the optimized ternary all-PSCs show a photostability with ≈68% of the initial PCE retained after 400 h illumination, which is more stable than the binary all-PSCs. This work demonstrates that the utilization of a ternary all-polymer system based on ultra-NBG polymer acceptor blended with compatible polymer donors is an effective strategy to advance the field of all-PSCs.

AB - Developing organic solar cells (OSCs) based on a ternary active layer is one of the most effective approaches to maximize light harvesting and improve their photovoltaic performance. However, this strategy meets very limited success in all-polymer solar cells (all-PSCs) due to the scarcity of narrow bandgap polymer acceptors and the challenge of morphology optimization. In fact, the power conversion efficiencies (PCEs) of ternary all-PSCs even lag behind binary all-PSCs. Herein, highly efficient ternary all-PSCs are realized based on an ultranarrow bandgap (ultra-NBG) polymer acceptor DCNBT-TPC, a medium bandgap polymer donor PTB7-Th, and a wide bandgap polymer donor PBDB-T. The optimized ternary all-PSCs yield an excellent PCE of 12.1% with a remarkable short-circuit current density of 21.9 mA cm−2. In fact, this PCE is the highest value reported for ternary all-PSCs and is much higher than those of the corresponding binary all-PSCs. Moreover, the optimized ternary all-PSCs show a photostability with ≈68% of the initial PCE retained after 400 h illumination, which is more stable than the binary all-PSCs. This work demonstrates that the utilization of a ternary all-polymer system based on ultra-NBG polymer acceptor blended with compatible polymer donors is an effective strategy to advance the field of all-PSCs.

KW - all-polymer solar cells

KW - complementary absorption

KW - polymer acceptors

KW - stability

KW - ternary solar cells

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U2 - 10.1002/adfm.202008494

DO - 10.1002/adfm.202008494

M3 - Article

AN - SCOPUS:85093668742

SN - 1616-301X

VL - 31

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 5

M1 - 2008494

ER -

Highly Efficient Ternary All-Polymer Solar Cells with Enhanced Stability

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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