Polymer Acceptor Copolymerized with Luminescent Unit for High-Performance All-Polymer Solar Cells with Low Non-radiative Energy Loss

Yiyang Pan; Lingzhi Guo; Min Hun Jee; Guangkuo Dai; Zhongwei Ge; Junjie Zhang; Xiaopeng Duan; Jiali Song; Xiaoming Li; Han Young Woo; Yanming Sun

doi:10.1002/aenm.202403747

Polymer Acceptor Copolymerized with Luminescent Unit for High-Performance All-Polymer Solar Cells with Low Non-radiative Energy Loss

Yiyang Pan
, Lingzhi Guo
, Min Hun Jee
, Guangkuo Dai
, Zhongwei Ge
, Junjie Zhang
, Xiaopeng Duan
, Jiali Song
, Xiaoming Li
, Han Young Woo
, Yanming Sun^*

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

Reduction of non-radiative energy loss (ΔE_nr) in all-polymer solar cells (all-PSCs) is crucially important for achieving high power conversion efficiencies (PCEs). Herein, an efficient strategy is reported to reduce the ΔE_nr by introducing luminescent unit into the backbone of polymer acceptors. Compared to the device based on PM6:PYDT, the ΔE_nr in all-PSC based on PM6:PYDT-CzP-9 has decreased from 0.188 to 0.183 eV. This reduction is attributed to the improvement in electroluminescence external quantum efficiency (EQE_EL). The PM6:PYDT-CzP-9 device has shown an 18% increase in EQE_EL compared to the device based on PM6:PYDT (8.4 × 10⁻⁴ vs 7.1 × 10⁻⁴), demonstrating that the incorporation of luminescent unit in polymer acceptors is highly effective in enhancing the electroluminescence performance of all-PSCs. As a result, the PM6:PYDT-CzP-9 device yielded a high V_OC of 0.967 V, without the sacrifice of short-circuit current density (23.42 mA cm⁻²) and fill factor (77.5%), leading to a high PCE of 17.55%.

Original language	English
Article number	2403747
Journal	Advanced Energy Materials
Volume	16
Issue number	3
DOIs	https://doi.org/10.1002/aenm.202403747
Publication status	Published - 2026 Jan 21

Bibliographical note

Publisher Copyright:
© 2024 Wiley-VCH GmbH.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

all-polymer solar cell
copolymerization
luminescent unit, non-radiative energy loss
polymer acceptor

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science

Access to Document

10.1002/aenm.202403747

Cite this

@article{024cfa689e994520a662e1e12c7d78a4,

title = "Polymer Acceptor Copolymerized with Luminescent Unit for High-Performance All-Polymer Solar Cells with Low Non-radiative Energy Loss",

abstract = "Reduction of non-radiative energy loss (ΔEnr) in all-polymer solar cells (all-PSCs) is crucially important for achieving high power conversion efficiencies (PCEs). Herein, an efficient strategy is reported to reduce the ΔEnr by introducing luminescent unit into the backbone of polymer acceptors. Compared to the device based on PM6:PYDT, the ΔEnr in all-PSC based on PM6:PYDT-CzP-9 has decreased from 0.188 to 0.183 eV. This reduction is attributed to the improvement in electroluminescence external quantum efficiency (EQEEL). The PM6:PYDT-CzP-9 device has shown an 18\% increase in EQEEL compared to the device based on PM6:PYDT (8.4 × 10−4 vs 7.1 × 10−4), demonstrating that the incorporation of luminescent unit in polymer acceptors is highly effective in enhancing the electroluminescence performance of all-PSCs. As a result, the PM6:PYDT-CzP-9 device yielded a high VOC of 0.967 V, without the sacrifice of short-circuit current density (23.42 mA cm−2) and fill factor (77.5\%), leading to a high PCE of 17.55\%.",

keywords = "all-polymer solar cell, copolymerization, luminescent unit, non-radiative energy loss, polymer acceptor",

author = "Yiyang Pan and Lingzhi Guo and Jee, \{Min Hun\} and Guangkuo Dai and Zhongwei Ge and Junjie Zhang and Xiaopeng Duan and Jiali Song and Xiaoming Li and Woo, \{Han Young\} and Yanming Sun",

note = "Publisher Copyright: {\textcopyright} 2024 Wiley-VCH GmbH.",

year = "2026",

month = jan,

day = "21",

doi = "10.1002/aenm.202403747",

language = "English",

volume = "16",

journal = "Advanced Energy Materials",

issn = "1614-6832",

publisher = "John Wiley and Sons Inc.",

number = "3",

}

TY - JOUR

T1 - Polymer Acceptor Copolymerized with Luminescent Unit for High-Performance All-Polymer Solar Cells with Low Non-radiative Energy Loss

AU - Pan, Yiyang

AU - Guo, Lingzhi

AU - Jee, Min Hun

AU - Dai, Guangkuo

AU - Ge, Zhongwei

AU - Zhang, Junjie

AU - Duan, Xiaopeng

AU - Song, Jiali

AU - Li, Xiaoming

AU - Woo, Han Young

AU - Sun, Yanming

PY - 2026/1/21

Y1 - 2026/1/21

N2 - Reduction of non-radiative energy loss (ΔEnr) in all-polymer solar cells (all-PSCs) is crucially important for achieving high power conversion efficiencies (PCEs). Herein, an efficient strategy is reported to reduce the ΔEnr by introducing luminescent unit into the backbone of polymer acceptors. Compared to the device based on PM6:PYDT, the ΔEnr in all-PSC based on PM6:PYDT-CzP-9 has decreased from 0.188 to 0.183 eV. This reduction is attributed to the improvement in electroluminescence external quantum efficiency (EQEEL). The PM6:PYDT-CzP-9 device has shown an 18% increase in EQEEL compared to the device based on PM6:PYDT (8.4 × 10−4 vs 7.1 × 10−4), demonstrating that the incorporation of luminescent unit in polymer acceptors is highly effective in enhancing the electroluminescence performance of all-PSCs. As a result, the PM6:PYDT-CzP-9 device yielded a high VOC of 0.967 V, without the sacrifice of short-circuit current density (23.42 mA cm−2) and fill factor (77.5%), leading to a high PCE of 17.55%.

AB - Reduction of non-radiative energy loss (ΔEnr) in all-polymer solar cells (all-PSCs) is crucially important for achieving high power conversion efficiencies (PCEs). Herein, an efficient strategy is reported to reduce the ΔEnr by introducing luminescent unit into the backbone of polymer acceptors. Compared to the device based on PM6:PYDT, the ΔEnr in all-PSC based on PM6:PYDT-CzP-9 has decreased from 0.188 to 0.183 eV. This reduction is attributed to the improvement in electroluminescence external quantum efficiency (EQEEL). The PM6:PYDT-CzP-9 device has shown an 18% increase in EQEEL compared to the device based on PM6:PYDT (8.4 × 10−4 vs 7.1 × 10−4), demonstrating that the incorporation of luminescent unit in polymer acceptors is highly effective in enhancing the electroluminescence performance of all-PSCs. As a result, the PM6:PYDT-CzP-9 device yielded a high VOC of 0.967 V, without the sacrifice of short-circuit current density (23.42 mA cm−2) and fill factor (77.5%), leading to a high PCE of 17.55%.

KW - all-polymer solar cell

KW - copolymerization

KW - luminescent unit, non-radiative energy loss

KW - polymer acceptor

UR - https://www.scopus.com/pages/publications/85206591996

U2 - 10.1002/aenm.202403747

DO - 10.1002/aenm.202403747

M3 - Article

AN - SCOPUS:85206591996

SN - 1614-6832

VL - 16

JO - Advanced Energy Materials

JF - Advanced Energy Materials

IS - 3

M1 - 2403747

ER -

Polymer Acceptor Copolymerized with Luminescent Unit for High-Performance All-Polymer Solar Cells with Low Non-radiative Energy Loss

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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