Single-Layered Organic Photovoltaics with Double Cascading Charge Transport Pathways: 18% Efficiencies

Ming Zhang; Lei Zhu; Guanqing Zhou; Tianyu Hao; Chaoqun Qiu; Zhe Zhao; Qin Hu; Bryon Larson; Haiming Zhu; Zaifei Ma; Zheng Tang; Wei Feng; Yongming Zhang; Thomas Russell; Feng Liu

doi:10.1038/s41467-020-20580-8

Single-Layered Organic Photovoltaics with Double Cascading Charge Transport Pathways: 18% Efficiencies

Ming Zhang, Lei Zhu, Guanqing Zhou, Tianyu Hao, Chaoqun Qiu, Zhe Zhao, Qin Hu, Bryon Larson, Haiming Zhu, Zaifei Ma, Zheng Tang, Wei Feng, Yongming Zhang, Thomas Russell, Feng Liu

Chemistry and Nanoscience

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

554 Scopus Citations

Abstract

The chemical structure of donors and acceptors limit the power conversion efficiencies achievable with active layers of binary donor-acceptor mixtures. Here, using quaternary blends, double cascading energy level alignment in bulk heterojunction organic photovoltaic active layers are realized, enabling efficient carrier splitting and transport. Numerous avenues to optimize light absorption, carrier transport, and charge-transfer state energy levels are opened by the chemical constitution of the components. Record-breaking PCEs of 18.07% are achieved where, by electronic structure and morphology optimization, simultaneous improvements of the open-circuit voltage, short-circuit current and fill factor occur. The donor and acceptor chemical structures afford control over electronic structure and charge-transfer state energy levels, enabling manipulation of hole-transfer rates, carrier transport, and non-radiative recombination losses.

Original language	American English
Article number	309
Number of pages	10
Journal	Nature Communications
Volume	12
Issue number	1
DOIs	https://doi.org/10.1038/s41467-020-20580-8 https://doi.org/10.1038/s41467-020-20580-8
State	Published - 1 Dec 2021

Bibliographical note

Publisher Copyright:
© 2021, The Author(s).

NREL Publication Number

NREL/JA-5900-75329

Keywords

OPV
quaternary blend
world record efficiency

UN SDGs

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

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https://www.nrel.gov/docs/fy21osti/75329.pdf

Cite this

Zhang, M., Zhu, L., Zhou, G., Hao, T., Qiu, C., Zhao, Z., Hu, Q., Larson, B., Zhu, H., Ma, Z., Tang, Z., Feng, W., Zhang, Y., Russell, T., & Liu, F. (2021). Single-Layered Organic Photovoltaics with Double Cascading Charge Transport Pathways: 18% Efficiencies. Nature Communications, 12(1), Article 309. https://doi.org/10.1038/s41467-020-20580-8, https://doi.org/10.1038/s41467-020-20580-8

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abstract = "The chemical structure of donors and acceptors limit the power conversion efficiencies achievable with active layers of binary donor-acceptor mixtures. Here, using quaternary blends, double cascading energy level alignment in bulk heterojunction organic photovoltaic active layers are realized, enabling efficient carrier splitting and transport. Numerous avenues to optimize light absorption, carrier transport, and charge-transfer state energy levels are opened by the chemical constitution of the components. Record-breaking PCEs of 18.07% are achieved where, by electronic structure and morphology optimization, simultaneous improvements of the open-circuit voltage, short-circuit current and fill factor occur. The donor and acceptor chemical structures afford control over electronic structure and charge-transfer state energy levels, enabling manipulation of hole-transfer rates, carrier transport, and non-radiative recombination losses.",

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Zhang, M, Zhu, L, Zhou, G, Hao, T, Qiu, C, Zhao, Z, Hu, Q, Larson, B, Zhu, H, Ma, Z, Tang, Z, Feng, W, Zhang, Y, Russell, T & Liu, F 2021, 'Single-Layered Organic Photovoltaics with Double Cascading Charge Transport Pathways: 18% Efficiencies', Nature Communications, vol. 12, no. 1, 309. https://doi.org/10.1038/s41467-020-20580-8, https://doi.org/10.1038/s41467-020-20580-8

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AU - Zhao, Zhe

AU - Hu, Qin

AU - Larson, Bryon

AU - Zhu, Haiming

AU - Ma, Zaifei

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AU - Feng, Wei

AU - Zhang, Yongming

AU - Russell, Thomas

AU - Liu, Feng

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Single-Layered Organic Photovoltaics with Double Cascading Charge Transport Pathways: 18% Efficiencies

Abstract

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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