2,5-dichloro-3,4-diiodothiophene as a versatile solid additive for high-performance organic solar cells

Nano Energy, Journal Year: 2024, Volume and Issue: 125, P. 109604 - 109604

Published: April 10, 2024

Language: Английский

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A systematic investigation on pyridine derived solid additives inducing fibrillar morphology for highly efficient organic solar cells with over 20 % efficiency

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 164, P. 100977 - 100977

Published: March 18, 2025

Language: Английский

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Steric modulation of tetradentate platinum(II) bis-carbene complex enables over 18.4% efficiency of layer-by-layer all-polymer solar cells

Nano Energy, Journal Year: 2024, Volume and Issue: 130, P. 110174 - 110174

Published: Aug. 23, 2024

Language: Английский

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The Effects of Polymer Molecular Weight on Morphology and the Device Efficiency: Progress and Prospects for Organic Solar Cells

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Abstract Organic solar cells (OSCs) are developing as a crucial technology for sustainable energy, attaining power conversion efficiencies (PCEs) of over 20%. The morphology the active layer is essential in influencing PCE, but its exact manipulation difficult because complex interactions between donor and acceptor molecules. molecular weight ( M w ) polymers parameter that significantly affects morphological development, including domain size, purity, crystallinity, orientation. Here trade‐offs regulation examined, emphasizing high‐ improve stability crystallinity may hinder phase separation. In contrast, low‐ promote finer separation at cost mechanical integrity. Moreover, current achievements synthesized to clarify methodologies optimizing achieve balanced features, enhance design, maximize potential OSCs. These insights facilitate resolution existing difficulties advancements OSCs toward useful applications.

Language: Английский

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Effective Regulation of Morphologies and Exciton‐Generation Process Enables Quasi‐Planar All‐Polymer Organic Solar Cells Exceed 18% Efficiency

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 27, 2024

Abstract Disordered polymer chain entanglements within all‐polymer blends limit the formation of optimal donor–acceptor phase separation, and thus performance organic solar cells (all‐PSCs). Considering challenge importance morphology regulation in all‐PSCs, a diluted layer‐by‐layer (N‐LBL) strategy is thereby adopted to fine‐tuning properties blends. When comparing traditional PM6:PY‐IT based bulk‐heterojunction (BHJ) film PM6/PY‐IT (LBL) film, N‐LBL which prepared from PM6 (with 3% PY‐IT) bottom layer PY‐IT 6% PM6) top layer, displayed clearer bi‐continuous fibrillar network higher exciton generation process. Benefiting these unique characters, all‐PSC consisting active exhibited short‐circuit current density over 26 mA cm −2 power conversion efficiency (PCE) 18.33%, are both than those BHJ (16.88%) LBL (17.13%) devices. Moreover, universality dilution other (PM6 PY‐DT, PY‐FT‐ o ) also demonstrated with unanimously improved device performance. This work underscores effectiveness method tuning morphologies charge dynamics for high‐performance all‐PSCs.

Language: Английский

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Dual Liquid Rubber Matrix Based Highly Efficient and Mechanically Robust Layer‐by‐Layer Organic Solar Cells

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

Published: March 7, 2025

ABSTRACT Developing organic solar cells (OSCs) simultaneously possessing high efficiency and robust mechanical properties is one of crucial tasks to ensure their operational reliability applicability for emerging wearable devices. However, enhancing without compromising the electrical high‐performance active materials remains a challenge. This work presents method that overcomes this limitation by embedding dual liquid rubber (DLR) matrix consisting tetra‐fluorophenyl azide penta‐fluorophenyl end‐capped polybutadienes, PFFA PFF, into layer‐by‐layer (LBL) films, which enables finely controlled film morphology built on strong noncovalent interactions cross‐linking chemistry. The resulting LBL demonstrates significantly improved stretchability reduced stiffness layer, with crack initiation strain approximately eight times higher than pristine film. potential DLR strategy demonstrated in PM6:L8‐BO flexible power conversion 17.7%, among highest efficiencies OSCs date. More importantly, also significant bending durability retain 84.2% initial performance after 5000 cycles. design concept offers new achieving highly efficient stretchable OSCs.

Language: Английский

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Mediating morphology evolution via the regulation of molecular interactions between volatile solid additives and electron acceptor to enable organic solar cells with 19.20% efficiency

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158635 - 158635

Published: Dec. 1, 2024

Language: Английский

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Steric Modulation of Tetradentate Platinum(Ii) Bis-Carbene Complex Enables Over 18.4% Efficiency of Layer-by-Layer All-Polymer Solar Cells

Published: Jan. 1, 2024

Language: Английский

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“Like dissolves like” enables the synergy of fluorinated additive and fluorous solvent soaking for high-performance organic solar cells

Materials Today Advances, Journal Year: 2024, Volume and Issue: 24, P. 100536 - 100536

Published: Oct. 13, 2024

Language: Английский

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