Natural Product Betulin-Based Insulating Polymer Filler in Organic Solar Cells

Qilun Zhang; Huotian Zhang; Ziang Wu; Chuanfei Wang; Rui Zhang; Chiyuan Yang; Feng Gao; Simone Fabiano; Han Young Woo; Monica Ek; Xianjie Liu; Mats Fahlman

doi:10.1002/solr.202200381

Natural Product Betulin-Based Insulating Polymer Filler in Organic Solar Cells

Qilun Zhang, Huotian Zhang, Ziang Wu, Chuanfei Wang, Rui Zhang, Chiyuan Yang, Feng Gao, Simone Fabiano, Han Young Woo, Monica Ek, Xianjie Liu, Mats Fahlman

Department of Chemistry

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

1 Citation (Scopus)

Abstract

Introduction of filler materials into organic solar cells (OSCs) are a promising strategy to improve device performance and thermal/mechanical stability. However, the complex interactions between the state-of-the-art OSC materials and filler require careful selection of filler materials and OSC fabrication to achieve lower cost and improved performance. In this work, the introduction of a natural product betulin-based insulating polymer as filler in various OSCs is investigated. Donor–acceptor–insulator ternary OSCs are developed with improved open-circuit voltage (V_oc) due to decreased trap-assisted recombination. Furthermore, filler-induced vertical phase separation due to mismatched surface energy can strongly affect charge collection at the bottom interface and limit the filler ratio. A quasi-bilayer strategy is used in all-polymer systems to circumvent this problem. Herein, the variety of filler materials in OSCs to biomass is broadened, and the filler strategy is made a feasible and promising strategy toward highly efficient, eco, and low-cost OSCs.

Original language	English
Article number	2200381
Journal	Solar RRL
Volume	6
Issue number	9
DOIs	https://doi.org/10.1002/solr.202200381
Publication status	Published - 2022 Sept

Keywords

Filler strategy
betulin
organic solar cells

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1002/solr.202200381

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@article{41f24dc98054418e9ef699d7ffb7abf0,

title = "Natural Product Betulin-Based Insulating Polymer Filler in Organic Solar Cells",

abstract = "Introduction of filler materials into organic solar cells (OSCs) are a promising strategy to improve device performance and thermal/mechanical stability. However, the complex interactions between the state-of-the-art OSC materials and filler require careful selection of filler materials and OSC fabrication to achieve lower cost and improved performance. In this work, the introduction of a natural product betulin-based insulating polymer as filler in various OSCs is investigated. Donor–acceptor–insulator ternary OSCs are developed with improved open-circuit voltage (Voc) due to decreased trap-assisted recombination. Furthermore, filler-induced vertical phase separation due to mismatched surface energy can strongly affect charge collection at the bottom interface and limit the filler ratio. A quasi-bilayer strategy is used in all-polymer systems to circumvent this problem. Herein, the variety of filler materials in OSCs to biomass is broadened, and the filler strategy is made a feasible and promising strategy toward highly efficient, eco, and low-cost OSCs.",

keywords = "Filler strategy, betulin, organic solar cells",

author = "Qilun Zhang and Huotian Zhang and Ziang Wu and Chuanfei Wang and Rui Zhang and Chiyuan Yang and Feng Gao and Simone Fabiano and Woo, {Han Young} and Monica Ek and Xianjie Liu and Mats Fahlman",

note = "Funding Information: The authors acknowledge funding from the Knut and Alice Wallenberg Foundation (KAW) through the Wallenberg Wood Science Center. The work in addition was in part supported by the Swedish Energy Agency (Grant no. 45411‐1), the Swedish Research Council (Project grant nos. 2016‐05498, 2016‐05990, 2020‐04538, and 2018‐06048), the STINT grant (Grant no. CH2017‐7163), and the Swedish Government Strategic Research Area in Materials Science on Functional Materials at Link{\"o}ping University (Faculty Grant SFO Mat LiU no. 2009 00971). Publisher Copyright: {\textcopyright} 2022 The Authors. Solar RRL published by Wiley-VCH GmbH.",

year = "2022",

month = sep,

doi = "10.1002/solr.202200381",

language = "English",

volume = "6",

journal = "Solar RRL",

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publisher = "Wiley-VCH Verlag",

number = "9",

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TY - JOUR

T1 - Natural Product Betulin-Based Insulating Polymer Filler in Organic Solar Cells

AU - Zhang, Qilun

AU - Zhang, Huotian

AU - Wu, Ziang

AU - Wang, Chuanfei

AU - Zhang, Rui

AU - Yang, Chiyuan

AU - Gao, Feng

AU - Fabiano, Simone

AU - Woo, Han Young

AU - Ek, Monica

AU - Liu, Xianjie

AU - Fahlman, Mats

N1 - Funding Information: The authors acknowledge funding from the Knut and Alice Wallenberg Foundation (KAW) through the Wallenberg Wood Science Center. The work in addition was in part supported by the Swedish Energy Agency (Grant no. 45411‐1), the Swedish Research Council (Project grant nos. 2016‐05498, 2016‐05990, 2020‐04538, and 2018‐06048), the STINT grant (Grant no. CH2017‐7163), and the Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linköping University (Faculty Grant SFO Mat LiU no. 2009 00971). Publisher Copyright: © 2022 The Authors. Solar RRL published by Wiley-VCH GmbH.

PY - 2022/9

Y1 - 2022/9

N2 - Introduction of filler materials into organic solar cells (OSCs) are a promising strategy to improve device performance and thermal/mechanical stability. However, the complex interactions between the state-of-the-art OSC materials and filler require careful selection of filler materials and OSC fabrication to achieve lower cost and improved performance. In this work, the introduction of a natural product betulin-based insulating polymer as filler in various OSCs is investigated. Donor–acceptor–insulator ternary OSCs are developed with improved open-circuit voltage (Voc) due to decreased trap-assisted recombination. Furthermore, filler-induced vertical phase separation due to mismatched surface energy can strongly affect charge collection at the bottom interface and limit the filler ratio. A quasi-bilayer strategy is used in all-polymer systems to circumvent this problem. Herein, the variety of filler materials in OSCs to biomass is broadened, and the filler strategy is made a feasible and promising strategy toward highly efficient, eco, and low-cost OSCs.

AB - Introduction of filler materials into organic solar cells (OSCs) are a promising strategy to improve device performance and thermal/mechanical stability. However, the complex interactions between the state-of-the-art OSC materials and filler require careful selection of filler materials and OSC fabrication to achieve lower cost and improved performance. In this work, the introduction of a natural product betulin-based insulating polymer as filler in various OSCs is investigated. Donor–acceptor–insulator ternary OSCs are developed with improved open-circuit voltage (Voc) due to decreased trap-assisted recombination. Furthermore, filler-induced vertical phase separation due to mismatched surface energy can strongly affect charge collection at the bottom interface and limit the filler ratio. A quasi-bilayer strategy is used in all-polymer systems to circumvent this problem. Herein, the variety of filler materials in OSCs to biomass is broadened, and the filler strategy is made a feasible and promising strategy toward highly efficient, eco, and low-cost OSCs.

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KW - organic solar cells

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ER -

Natural Product Betulin-Based Insulating Polymer Filler in Organic Solar Cells

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Keywords

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