Multi‐Facet Passivation of Ternary Colloidal Quantum Dot Enabled by Quadruple‐Ligand Ensemble toward Efficient Lead‐Free Optoelectronics

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(7)

Published: Jan. 5, 2024

Abstract Solution‐processed ternary‐compound semiconductor AgBiS 2 colloidal quantum dots (CQDs) are promising light‐absorbing materials owing to their nontoxicity and high absorption coefficient (>10 6 cm −1 ). However, rational strategies passivate multi‐facet of CQDs manufacture stable CQD inks have not yet been proposed. In this paper, a ligand passivation strategy is proposed using solution‐phase exchange method. A quadruple‐ligand ensemble employed demonstrate multifaceted on highly ink. Density functional theory studies reveal the secondary cation adsorption silver halide passivation, indicating synergistic ensemble. This yields low trap density in solids, improving power conversion efficiency 8.1% by 53% solar cells. Furthermore, device exhibits fastest response time 400 ns among all reported devices, demonstrating its potential for efficient lead‐free optoelectronics.

Language: Английский

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Intrinsically Stretchable Organic Photovoltaic Cells with Improved Mechanical Durability and Stability via Dual‐Donor Polymer Blending

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: Feb. 8, 2024

Abstract Intrinsically stretchable organic photovoltaic cells (OPVs) have garnered significant attention as crucial devices for powering next‐generation wearable electronics. Despite the rapid power conversion efficiency gains in champion OPVs, their brittle stretchability has failed to meet demands of Internet Things era, severely hindering further development and practical applications. In this regard, a new dual‐donor polymer blending strategy is demonstrated constructing intrinsically OPVs by designing novel high‐molecular–weight conjugated PM6‐HD. This PM6 derivative featuring long alkyl chains can reach sufficiently high molecular weight thus exhibits fracture strain exceeding 90%, which ≈12 times higher than benchmark PM6. Synergistic optimization mechanical properties performance polymer:small molecule all‐polymer systems constructed from physical blends PM6‐HD achieved. Crucially, resulting OPV demonstrates excellent stability, with record PCE 80% 50.3% retention above even after 1000 cycles cyclic stretching at strains. work contributes advancement technology opens up possibilities its integration into electronic devices.

Language: Английский

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A dendritic hexamer acceptor enables 19.4% efficiency with exceptional stability in organic solar cells

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 20, 2025

Language: Английский

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Constructing NH2-MIL-125(Ti) derived evaporator for simultaneous photocatalytic decontamination and water evaporation

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 131567 - 131567

Published: Jan. 1, 2025

Language: Английский

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Advancing Intrinsically Stretchable Organic Photovoltaics with a Nearly Amorphous Polymer Semiconductor

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Current state‐of‐the‐art organic photovoltaic (OPV) films, composed of conjugated polymer donors and small molecule acceptors, are often limited by the high brittleness their rigid backbones, which restricts application in wearable devices. In contrast, all‐polymer OPVs have demonstrated enhanced intrinsic stretchability, but further advancements necessary to meet demands. Here, an uncharted strategy is reported enhance mechanical stretchability performance incorporating a nearly‐amorphous polymer, poly(indacenodithiophene‐co‐benzothiadiazole) (IDTBT) into layer‐by‐layer structured active layer. IDTBT possesses fracture strain ≈80%, significantly outperforming well‐known donor polymers like PM6. The incorporation enhances properties, with both optimized at low contents. More importantly, intrinsically stretchable demonstrate superior stability impressive power conversion efficiency 14.2%, highest date this category. Particularly, IDTBT‐strengthened retain 72% initial under tensile 50%, 68% even after being stretched hundreds times 30% strain, demonstrating exceptional stability. This approach underscores potential semiconductors designing highly OPVs, paving way for seamless integration electronics.

Language: Английский

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Stability of Intrinsically Stretchable Polymer Photovoltaics: Fundamentals, Achievements, and Perspectives

Progress in Polymer Science, Journal Year: 2024, Volume and Issue: unknown, P. 101899 - 101899

Published: Oct. 1, 2024

Language: Английский

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Toward Flexible and Stretchable Organic Solar Cells: A Comprehensive Review of Transparent Conductive Electrodes, Photoactive Materials, and Device Performance

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

Published: Nov. 10, 2024

Abstract Flexible and stretchable organic solar cells (FOSCs SOSCs) hold immense potential due to their versatility applicability in emerging areas such as wearable electronics, foldable devices, biointegrated systems. Despite these promising applications, several challenges remain, primarily related the mechanical durability, material performance, scalability required for commercialization. This review comprehensively highlights recent advancements design fabrication of FOSCs SOSCs, with a particular emphasis on key functional layers, including transparent conductive electrodes, interfacial photoactive materials, top electrodes. Innovations design, active layers electrodes improved flexibility, are discussed alongside developments device processes achieve power conversion efficiencies exceeding 19%. Furthermore, addresses remaining challenges, need scalable manufacturing techniques enhanced robustness under strain. Finally, prospects SOSCs analyzed, providing insights into how technologies can contribute development sustainable, high‐performance sources electronic devices other flexible electronics. offers valuable insights, bringing commercialization wearable, closer reality.

Language: Английский

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Stretchable All-Small-Molecule Organic Solar Cells Enabled by Polymer Elastomer Confinement

Chinese Journal of Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

Language: Английский

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From fabrication to function: Innovations in intrinsically stretchable all-polymer solar cells

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown, P. 100072 - 100072

Published: May 1, 2025

Language: Английский

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High‐Molecular‐Weight Polymer Donors Based on Bithiophene Imide for High‐Efficiency and Durable All‐Polymer Solar Cells

Advanced Materials Technologies, Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Abstract High‐molecular‐weight (high‐MW) polymer semiconductors are pivotal in advancing all‐polymer solar cells (all‐PSCs), known for their excellent device stability and mechanical resilience. However, the development of high‐MW donors ( P D s) faces challenges due to scarcity suitable backbones that ensure both high MW optimal solubility, along with well‐controlled miscibility acceptors A s). Herein, a series bithiophene imide (BTI)‐based s number‐average molecular weights ranging from 120.3 145.5 kDa developed, offering improved aggregation property optimized : miscibility. Notably, PBTI‐OD, featuring 2‐octadecyldodecyl side chain on BTI moiety, exhibited superior blending character morphology s, outperforming its 2‐hexyldecyl 2‐decyltetradecyl analogues (PBTI‐HD PBTI‐DT). As result, PBTI‐OD achieved impressive power conversion efficiencies 18.47% 19.20% binary ternary devices, respectively. Furthermore, progressive enhancement robustness is realized PBTI‐HD PBTI‐DT, enabled by longer alkyl higher MW. These results underscore great potential BTI‐based construct highly efficient durable all‐PSCs, paving way next‐generation energy technologies.

Language: Английский

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