Efficient All-Polymer Solar Cells Enabled by Interface Engineering

Guoping Zhang; Lihong Wang; Chaoyue Zhao; Yajie Wang; Ruiyu Hu; Jiaxu Che; Siying He; Wei Chen; Leifeng Cao; Zhenghui Luo; Mingxia Qiu; Shunpu Li; Guangye Zhang

doi:10.3390/polym14183835

Polymers (Sep 2022)

Efficient All-Polymer Solar Cells Enabled by Interface Engineering

Guoping Zhang,
Lihong Wang,
Chaoyue Zhao,
Yajie Wang,
Ruiyu Hu,
Jiaxu Che,
Siying He,
Wei Chen,
Leifeng Cao,
Zhenghui Luo,
Mingxia Qiu,
Shunpu Li,
Guangye Zhang

Affiliations

Guoping Zhang: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Lihong Wang: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Chaoyue Zhao: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Yajie Wang: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Ruiyu Hu: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Jiaxu Che: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Siying He: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Wei Chen: College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
Leifeng Cao: College of Engineering Physics, Shenzhen Technology University, Shenzhen 518118, China
Zhenghui Luo: College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
Mingxia Qiu: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Shunpu Li: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China
Guangye Zhang: College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China

DOI: https://doi.org/10.3390/polym14183835
Journal volume & issue: Vol. 14, no. 18
p. 3835

Abstract

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All-polymer solar cells (all-PSCs) are organic solar cells in which both the electron donor and the acceptor are polymers and are considered more promising in large-scale production. Thanks to the polymerizing small molecule acceptor strategy, the power conversion efficiency of all-PSCs has ushered in a leap in recent years. However, due to the electrical properties of polymerized small-molecule acceptors (PSMAs), the FF of the devices is generally not high. The typical electron transport material widely used in these devices is PNDIT-F3N, and it is a common strategy to improve the device fill factor (FF) through interface engineering. This work improves the efficiency of all-polymer solar cells through interfacial layer engineering. Using PDINN as the electron transport layer, we boost the FF of the devices from 69.21% to 72.05% and the power conversion efficiency (PCE) from 15.47% to 16.41%. This is the highest efficiency for a PY-IT-based binary all-polymer solar cell. This improvement is demonstrated in different all-polymer material systems.

Published in Polymers

ISSN: 2073-4360 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/polymers/

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