Recent developments in polymer semiconductors with excellent electron transport performances

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review describes the design considerations, bonding modes between monomers, structural modification strategies, and applications of polymer semiconductors with excellent electron transport performances.

Language: Английский

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Unveiling the Shadows: Overcoming Bottlenecks in Scaling Organic Photovoltaic Technology from Laboratory to Industry

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(23)

Published: May 15, 2024

Abstract Organic photovoltaic (OPV) technology has recently achieved remarkable progress in academia, attaining power conversion efficiencies exceeding 19%, a breakthrough previously unimaginable. Despite these advancements, the translation of high‐efficiency OPV cells into commercialization modules been limited, impeding market penetration technology. Upon careful examination, various challenges emerge, including disparities between laboratory research and industrial production device architecture, influenced by considerations cost manufacturability. Additionally, incorporation materials requires consideration not only compatibility photoactive layer interface layers or transparent electrodes but also associated synthetic complexity chemical structures implications. While issues are crucial, they may be widely discussed current mainstream research. In this article, purpose is to identify bottlenecks from material techniques perspective, with aim promoting increased resources pertinent module technologies. This effort intended propel toward greater success bring it closer alignment goals commercialization.

Language: Английский

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Cost‐Effective Perylene‐Diimide Non‐Conjugated Polymer as Cathode Interlayer for Large‐Scale Production of Organic Photovoltaics

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract At present, organic solar cells (OSCs) stand at a key stage of industrialization. Although many photovoltaic materials exhibit outstanding performance, they cannot meet the requirements for large‐scale production. Here, cost‐effective and high‐throughput method is reported to prepare Perylene/naphthalene‐diimide (PDI/NDI) non‐conjugated polymers serving as cathode interlayer (CIL) in OSCs. By utilizing low‐cost raw materials, NDI/PDI can be readily synthesized without involving purification by column chromatography, which minimizes cost CILs. Notably, performance PDI‐OEG CIL insensitive preparation conditions processing methods, thereby lowering technical threshold practical applications, essentially important using binary blend PM6:L8‐BO an active layer, OSC modified exhibited power conversion efficiency (PCE) 18.7%. It demonstrated that suitable work function, self‐doping effect, H‐aggregate endowed with excellent electron collection capability, suppress charge recombination Moreover, well‐compatible large‐area blade‐coating technique, 1‐cm 2 fabricated blade‐coated PDI‐OEG, delivering PCE 17.0%. The results suggest promising material advancing industrialization technology.

Language: Английский

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Regulating Molecular Structure of S,N‐Heteroacene Non‐fullerene Acceptors to Achieve Efficient Photoelectric Properties^†

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Comprehensive Summary The ternary strategy has demonstrated its efficacy in improving charge transport organic solar cells (OSCs). Here, three novel non‐fullerene acceptors, SN6C9‐4F, SN6C9‐4Cl and SN6C10‐4F, based on S,N‐heteroacene linear backbone were designed synthesized. acceptors exhibit excellent molecular coplanarity, high crystallinity possess a deep‐lying lowest unoccupied orbital energy level, which is beneficial for injection field‐effect transistors (OFETs). Notably, the OFET devices all achieved impressive electron mobilities, with SN6C10‐4F achieving up to 0.73 cm 2 ·V –1 ·s , one of highest values among A‐D‐A type small molecules. In addition, OSCs device PBDB‐T:SN6C9‐4F exhibited best power conversion efficiency 12.07% owing optimal morphology enhanced transport. Moreover, incorporation SN6C9‐4F into efficient PM6:L8‐BO binary system form resulted extended absorption range, donor crystallization, improved more balanced transport, ultimately leading an improvement PCE from 17.78% 18.32%. This study highlights potential developing distinct structures Y‐series broaden regulate providing approach enhance OSCs.

Language: Английский

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Improving Efficiency of Organic Photovoltaics by Manipulating Critical Concentration of Polymer in Bulk‐Heterojunction Solution

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(49)

Published: Aug. 16, 2024

Abstract In the advancement of organic photovoltaics (OPV) toward scale‐up production, how to mitigate batch instability electron‐donating polymers originated from varied molecular weights remains a great challenge. By taking into consideration relationship between weight and relevant critical concentration ( c * ) solution, herein it is demonstrated that aggregation behavior can be tailored through manipulating polymer solution. It interesting note excessive in low‐molecular‐weight fractions circumvented while favorable mixing ratio identified. preparing binary bulk heterojunction film under ‐defined conditions for mixed‐molecular‐weight polymers, notable power conversion efficiency 19.1% devices achieved. Of particular importance linear interrelation established maximum PCE fraction aggregation, validating those straightforward spectra measurements accurately rationally guide photovoltaic donor thereby fully harnessing potent driving force affinity inherent fractions. These findings offer logical framework addressing variability large‐scale production high‐performance OPV devices.

Language: Английский

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Novel Bis(4-aminophenoxy) Benzene-Based Aramid Copolymers with Enhanced Solution Processability

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(20), P. 1632 - 1632

Published: Oct. 11, 2024

Aramid copolymers have garnered significant interest due to their potential applications in extreme environments such as the aerospace, defense, and automotive industries. Recent developments aramid moved beyond traditional use high-strength, high-temperature resistant fibers. There is now a demand for new polymers that can easily be processed into thin films electrical insulation membranes, utilizing inherent properties of copolymers. In this work, we demonstrate two novel are capable polymerizing polar organic solvents with high degree polymerization, achieved by incorporating flexible bis(4-aminophenoxy) benzene moieties chain backbone. The synthesized MBAB-aramid PBAB-aramid enabled fabrication exceptionally thin, clear films, an average molecular weight exceeding 150 kDa thickness ranging from 3 10 μm. dynamic mechanical analysis (DMA) thermogravimetric (TGA) reveal exhibited glass transition temperatures 270.1 °C 292.7 °C, respectively, thermal decomposition 449.6 465.5 respectively. tensile 5 μm thick confirmed strengths, elongation at break, 107.1 MPa (50.7%) 113.5 (58.4%) PBAB-aramid, consistently differ between polymers, which attributed variations linearity polymer structures resulting differences density intermolecular hydrogen bonding pi-pi interactions. ultra-thin materials offer numerous functional coatings across various

Language: Английский

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Design, Synthesis and Biological Evaluation of Novel Tubulin-Targeting Agents with a Dual-Mechanism for Polymerization Inhibition and Protein Degradation

Published: Jan. 1, 2024

Microtubules are recognized as one of the most vital and attractive targets in anticancer therapy. The development novel tubulin-targeting agents with a new action mechanism is imperative. Based on hydrophobic tagging strategy, molecular scaffold tirbanibulin was selected tubulin target-binding moiety, subsequent to which series target compounds were rationally designed by selecting various combinations linkers tags. A set molecules synthesized them exhibited potent antiproliferative activity against tumor cells vitro. high compound 14b inhibited polymerization purified recombinant induced degradation α- β-tubulin MCF-7 cells. Notably, following treatment 14b, an unexpected phenomenon "microtubules fragmentation" observed via immunofluorescence staining. Furthermore, possessed antitumor 4T1 allograft models TGI 74.27% without significant toxicity. In this work, we report discovery dual-mechanism agents.

Language: Английский

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Design, synthesis and biological evaluation of novel tubulin-targeting agents with a dual-mechanism for polymerization inhibition and protein degradation

European Journal of Medicinal Chemistry, Journal Year: 2024, Volume and Issue: 272, P. 116458 - 116458

Published: April 28, 2024

Language: Английский

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Homogeneous bulk heterojunction domains with continuous charge pathway via hydrophobic membrane filtration for stable photo and dark current operations

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(46), P. 18788 - 18799

Published: Jan. 1, 2024

Hydrophobic membrane filtration addresses solubility issues related to solvent and molecular weight. Organic optoelectronics with exhibit stable operation under varying light intensities, reducing leakage current improving charge flow.

Language: Английский

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