Boosting photovoltaic performance of ternary organic solar cells by integrating a multi-functional guest acceptor

Yuli Yin; Lingling Zhan; Ming Liu; Chongqing Yang; Fengyun Guo; Yi Liu; Shiyong Gao; Liancheng Zhao; Hongzheng Chen; Yong Zhang

doi:10.1016/j.nanoen.2021.106538

Boosting photovoltaic performance of ternary organic solar cells by integrating a multi-functional guest acceptor

Yuli Yin
, Lingling Zhan
, Ming Liu
, Chongqing Yang
, Fengyun Guo
, Yi Liu^*
, Shiyong Gao
, Liancheng Zhao
, Hongzheng Chen
, Yong Zhang^*

^*Corresponding author for this work

Harbin Institute of Technology
University of South China
Zhejiang University
Lawrence Berkeley National Laboratory
Zhengzhou University

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

58 Scopus citations

Abstract

Constructing ternary structure is one of the most effective design strategies to break the efficiency ceiling of traditional binary organic solar cells (OSCs). Here, a new Y-series non-fullerene acceptor (Y-T) featuring 1,3-diethyl-2-thiobarbituric acid (DTBA) end groups is developed as a third component for the classical PM6:Y6 binary system. The champion power conversion efficiency of ternary OSCs is increased from 15.64% to 17.37% via incorporating 10 wt% Y-T, with the simultaneously enhanced open-circuit voltage (V_oc) of 0.865 V, a short-circuit current density (J_sc) of 26.90 mA/cm², and a fill factor (FF) of 74.97%. The positive contribution of Y-T in the ternary blend can be ascribed to the improved spectroscopic complementarity and enhanced exciton utilization ratio due to the additional energy transfer process. Moreover, Y-T guest acceptor plays a critical role in adjusting the active layer morphology and facilitating three-dimension phase separation, resulting in a balanced charge transport and enhanced FF of ternary OSCs. This work provides insight into the molecular design of non-fullerene acceptor and suggest guidelines to rationally select guest component for ternary OSCs.

Original language	English
Article number	106538
Journal	Nano Energy
Volume	90
DOIs	https://doi.org/10.1016/j.nanoen.2021.106538
State	Published - Dec 2021
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

3D phase separation
electron acceptor
electronic alloy acceptors
energy transfer
ternary organic solar cells

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10.1016/j.nanoen.2021.106538

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title = "Boosting photovoltaic performance of ternary organic solar cells by integrating a multi-functional guest acceptor",

abstract = "Constructing ternary structure is one of the most effective design strategies to break the efficiency ceiling of traditional binary organic solar cells (OSCs). Here, a new Y-series non-fullerene acceptor (Y-T) featuring 1,3-diethyl-2-thiobarbituric acid (DTBA) end groups is developed as a third component for the classical PM6:Y6 binary system. The champion power conversion efficiency of ternary OSCs is increased from 15.64\% to 17.37\% via incorporating 10 wt\% Y-T, with the simultaneously enhanced open-circuit voltage (Voc) of 0.865 V, a short-circuit current density (Jsc) of 26.90 mA/cm2, and a fill factor (FF) of 74.97\%. The positive contribution of Y-T in the ternary blend can be ascribed to the improved spectroscopic complementarity and enhanced exciton utilization ratio due to the additional energy transfer process. Moreover, Y-T guest acceptor plays a critical role in adjusting the active layer morphology and facilitating three-dimension phase separation, resulting in a balanced charge transport and enhanced FF of ternary OSCs. This work provides insight into the molecular design of non-fullerene acceptor and suggest guidelines to rationally select guest component for ternary OSCs.",

keywords = "3D phase separation, electron acceptor, electronic alloy acceptors, energy transfer, ternary organic solar cells",

author = "Yuli Yin and Lingling Zhan and Ming Liu and Chongqing Yang and Fengyun Guo and Yi Liu and Shiyong Gao and Liancheng Zhao and Hongzheng Chen and Yong Zhang",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

month = dec,

doi = "10.1016/j.nanoen.2021.106538",

language = "英语",

volume = "90",

journal = "Nano Energy",

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TY - JOUR

T1 - Boosting photovoltaic performance of ternary organic solar cells by integrating a multi-functional guest acceptor

AU - Yin, Yuli

AU - Zhan, Lingling

AU - Liu, Ming

AU - Yang, Chongqing

AU - Guo, Fengyun

AU - Liu, Yi

AU - Gao, Shiyong

AU - Zhao, Liancheng

AU - Chen, Hongzheng

AU - Zhang, Yong

PY - 2021/12

Y1 - 2021/12

N2 - Constructing ternary structure is one of the most effective design strategies to break the efficiency ceiling of traditional binary organic solar cells (OSCs). Here, a new Y-series non-fullerene acceptor (Y-T) featuring 1,3-diethyl-2-thiobarbituric acid (DTBA) end groups is developed as a third component for the classical PM6:Y6 binary system. The champion power conversion efficiency of ternary OSCs is increased from 15.64% to 17.37% via incorporating 10 wt% Y-T, with the simultaneously enhanced open-circuit voltage (Voc) of 0.865 V, a short-circuit current density (Jsc) of 26.90 mA/cm2, and a fill factor (FF) of 74.97%. The positive contribution of Y-T in the ternary blend can be ascribed to the improved spectroscopic complementarity and enhanced exciton utilization ratio due to the additional energy transfer process. Moreover, Y-T guest acceptor plays a critical role in adjusting the active layer morphology and facilitating three-dimension phase separation, resulting in a balanced charge transport and enhanced FF of ternary OSCs. This work provides insight into the molecular design of non-fullerene acceptor and suggest guidelines to rationally select guest component for ternary OSCs.

AB - Constructing ternary structure is one of the most effective design strategies to break the efficiency ceiling of traditional binary organic solar cells (OSCs). Here, a new Y-series non-fullerene acceptor (Y-T) featuring 1,3-diethyl-2-thiobarbituric acid (DTBA) end groups is developed as a third component for the classical PM6:Y6 binary system. The champion power conversion efficiency of ternary OSCs is increased from 15.64% to 17.37% via incorporating 10 wt% Y-T, with the simultaneously enhanced open-circuit voltage (Voc) of 0.865 V, a short-circuit current density (Jsc) of 26.90 mA/cm2, and a fill factor (FF) of 74.97%. The positive contribution of Y-T in the ternary blend can be ascribed to the improved spectroscopic complementarity and enhanced exciton utilization ratio due to the additional energy transfer process. Moreover, Y-T guest acceptor plays a critical role in adjusting the active layer morphology and facilitating three-dimension phase separation, resulting in a balanced charge transport and enhanced FF of ternary OSCs. This work provides insight into the molecular design of non-fullerene acceptor and suggest guidelines to rationally select guest component for ternary OSCs.

KW - 3D phase separation

KW - electron acceptor

KW - electronic alloy acceptors

KW - energy transfer

KW - ternary organic solar cells

UR - https://www.scopus.com/pages/publications/85115964109

U2 - 10.1016/j.nanoen.2021.106538

DO - 10.1016/j.nanoen.2021.106538

M3 - 文章

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SN - 2211-2855

VL - 90

JO - Nano Energy

JF - Nano Energy

M1 - 106538

ER -

Boosting photovoltaic performance of ternary organic solar cells by integrating a multi-functional guest acceptor

Abstract

UN SDGs

Keywords

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