Polymer with conjugated alkylthiophenylthienyl side chains for efficient photovoltaic cells

Liu, Hailu; Xie, Jun; Zhang, Zhiquan; Zhang, Zheling; Guo, Wang; Pei, Yong; Zhao, Bin; Zhang, Jian

doi:10.1016/j.orgel.2017.06.011

Cited by 5 publications

(1 citation statement)

References 63 publications

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“…Polymers were synthesized by Stille coupling, and the specific synthetic procedures are displayed in the Supporting Information. In addition, their monomers M1, M2, and M3 were synthesized in accordance with the relevant literature. The number-average molecular weights ( M n ) tested by gel permeation chromatography for Z3 and Z4 were 63.1 and 31.2 kDa, along with polydispersity indexes of 3.15 and 1.62, respectively.…”

Section: Resultsmentioning

confidence: 99%

Side Chain Engineering of Two-Dimensional Polymeric Donors for High-Efficiency Organic Solar Cells

Zhang

Liu

et al. 2023

Energy Fuels

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Two new two-dimensional (2D) conjugated polymers (Z3 and Z4) with different side chains were synthesized and applied as donor materials for organic solar cells (OSCs). The alkylthiophenyl side chains in Z4 conferred an appropriate absorption spectrum and morphology, whereas the extra thienyl incorporated in the side chains of Z3 caused stronger π–π interaction, excessive molecular aggregation, and further inferior J SC and FF. Therefore, upon blending with the acceptor Y6, Z4-based OSCs achieved a power conversion efficiency of 15.12%, which was almost 30% higher than that of Z3-based devices (10.68%). The result indicated that side-chain modification is a fine-tuning strategy for the aggregation of 2D-conjugated polymeric donors in OSCs.

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Section: Resultsmentioning

confidence: 99%

Side Chain Engineering of Two-Dimensional Polymeric Donors for High-Efficiency Organic Solar Cells

Zhang

Liu

et al. 2023

Energy Fuels

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Fluorinated Polymer Donors for Nonfullerene Organic Solar Cells

Li,

Wang,

Chen

et al. 2024

Chemistry A European J

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The rapid development of narrow‐bandgap non‐fullerene acceptors (NFAs) has boosted the efficiency of organic solar cells over 19%. The new features of high‐performance NFAs, such as visible‐NIR light absorption, moderate HOMO, and high crystallinity, require polymer donors with matching physical properties. This emphasizes the importance of methods that can effectively tune the physical properties of polymers. Owning to very small atom size and strongest electronegativity, the fluorination has been proved the most efficient strategy to regulate the physical properties of polymer donors, including frontier energy level, absorption coefficient, dielectric constant, crystallinity and charge transport. Owing to the success of fluorination strategy, the vast majority of high‐performance polymer donors possess one or more fluorine atoms. In this review, the fluorination synthetic methods, the synthetic route of well‐known fluorinated building blocks, the fluorinated polymers which are categorized by the type of donor or acceptor units, and the relationships between the polymer structures, properties, and photovoltaic performances are comprehensively surveyed. We hope this review could provide the readers a deeper insight into fluorination strategy and lay a strong foundation for future innovation of fluorinated polymers.

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Cross linking-dependent properties of PVK-MEH-PPV bi-block copolymer: Vibrational, thermal and optical properties

Abbassi

Mbarek

Kréher

et al. 2019

Journal of Physics and Chemistry of Solids

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Polymer with conjugated alkylthiophenylthienyl side chains for efficient photovoltaic cells

Cited by 5 publications

References 63 publications

Side Chain Engineering of Two-Dimensional Polymeric Donors for High-Efficiency Organic Solar Cells

Side Chain Engineering of Two-Dimensional Polymeric Donors for High-Efficiency Organic Solar Cells

Fluorinated Polymer Donors for Nonfullerene Organic Solar Cells

Cross linking-dependent properties of PVK-MEH-PPV bi-block copolymer: Vibrational, thermal and optical properties

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