Simultaneously Improved Stretchability, Stability, and Output Power in Solar Cells via Entanglement Control

Energy & Environmental Science, Год журнала: 2024, Номер 17(16), С. 5950 - 5961

Опубликована: Янв. 1, 2024

Intrinsically stretchable all-polymer solar cells with exceptional stability, stretchability, mechanical robustness (1000 cycles at 50% strain) and improved output power were developed via entangled polymer additive, which is widely applicable.

Язык: Английский

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Recent development in solid additives enables high-performance organic solar cells

EnergyChem, Год журнала: 2024, Номер 6(4), С. 100129 - 100129

Опубликована: Июнь 15, 2024

Язык: Английский

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Advancing Intrinsically Stretchable Organic Photovoltaics with a Nearly Amorphous Polymer Semiconductor

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 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.

Язык: Английский

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New Polymerized Small Molecular Acceptors with Non‐Aromatic π‐Conjugated Linkers for Efficient All‐Polymer Solar Cells

Advanced Functional Materials, Год журнала: 2023, Номер 33(22)

Опубликована: Март 4, 2023

Abstract Developing new polymerized small molecular acceptor (PSMA) is pivotal for improving the performance of all‐polymer solar cells. On basis this newly developed CH‐series molecule acceptors, two PSMAs are reported herein (namely PZC16 and PZC17, respectively). To reduce torsion caused by traditional aromatic π‐bridges, non‐aromatic conjugated units (ethynyl vinylene PZC17) adopted as linkers their effect on photo‐physical properties well device systematically investigated. Both polymer acceptors exhibit co‐planar conformation, along with broad absorption ranges suitable energy levels. In comparison PM6:PZC16 film, PM6:PZC17 film exhibits more uniform phase separation in morphology a distinct bi‐continuous network better crystallinity. The PM6:PZC17‐binary‐based devices satisfactory PCE 16.33%, significantly higher than 9.22% PZC16‐based devices. Impressively, PM6:PZC17‐based large area (ca. 1 cm 2 ) achieves an excellent 15.14%, which among top cells (all‐PSCs).

Язык: Английский

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Synergistic optimization of mechanical and photovoltaic properties in ternary organic solar cells from a two-donor polymer blend

Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(11), С. 5606 - 5614

Опубликована: Янв. 1, 2023

A low-cost and 2D semi-paracrystalline conjugated polymer PTQ10 yields higher efficiency stretchability in dual donor ternary solar cells.

Язык: Английский

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Recent Research Progress of n-Type Conjugated Polymer Acceptors and All-Polymer Solar Cells

Chinese Journal of Polymer Science, Год журнала: 2023, Номер 41(5), С. 640 - 651

Опубликована: Фев. 27, 2023

Язык: Английский

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Tuning the Aggregated Structure of Polymer Interlayers for High-Performance Quantum Dot Solar Cells and Photodetectors

ACS Applied Polymer Materials, Год журнала: 2024, Номер unknown

Опубликована: Март 28, 2024

Due to their unique optoelectronic properties and potential for high efficiency, quantum dot (QD) solar cells photodetectors have gained tremendous attention. Achieving efficient charge transport extraction in these devices is crucial enhancing performance. Polymer interlayers play a vital role facilitating improving the device stability. This Spotlight on Applications paper focuses effective strategies employed tune microstructure of polymer QD achieve efficiency by bringing together recent literature. With use advanced synchrotron radiation scattering microscopic characterizations, we elucidate impact properties, casting solvents, physical blending methods microstructures photodetectors. Furthermore, take detailed look at some facile such as aggregation-suppressed synergy that enabled precise control over interlayers. Finally, provide perspectives future research directions obstacles field.

Язык: Английский

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Intrinsically Stretchable Organic Solar Cells and Sensors Enabled by Extensible Composite Electrodes

Advanced Functional Materials, Год журнала: 2024, Номер 34(44)

Опубликована: Авг. 7, 2024

Abstract Stretchable electrodes are critical to the development of advanced technologies such as human–machine interaction, flexible sensing, and wearable power supply, making them significant research value. However, current preparation methods for high‐performance stretchable complex inefficient, posing challenges their large‐scale application in realm wearables. To address this need, a straightforward efficient embedding strategy is reported fabricating silver nanowire/thermoplastic elastomer composite (referred Strem‐AT) utilizing viscoelasticity outstanding mechanical properties polymer elastomers achieve extensibility, conductivity, smooth surface. These exhibit excellent tensile behavior, low surface roughness, stable electrical properties, enabling successful integration into sensors intrinsically organic photovoltaic cells (IS‐OPV). When applied human skin joints motion detection, sensor demonstrates remarkable stretchability signal output. Importantly, all‐polymer IS‐OPV exhibits top‐notch conversion efficiency (PCE) >12.5% PCE 80% strain exceeding 50%. Furthermore, even after subjecting high‐strain stretching at 50% 1000 cycles, can retain 76% initial PCE. This study presents multifunctional electrode with high repeatability easy‐to‐scale fabrication photovoltaics.

Язык: Английский

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Unraveling the Solution Aggregation Structures and Processing Resiliency of High‐Efficiency Organic Photovoltaic Blends

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 7, 2024

The solution aggregation structure of conjugated polymers is crucial to the morphology and resultant optoelectronic properties organic electronics considerable interest in field. Precise characterizations structures photovoltaic (OPV) blends their temperature-dependent variations remain challenging. In this work, three representative high-efficiency OPV using small-angle X-ray/neutron scattering are systematically probed. Three cases processing resiliency elucidated state-of-the-art blends. exceptional PBQx-TF can be attributed minimal changes multiscale at elevated temperatures. Importantly, a new parameter, percentage acceptors distributed within polymer aggregates (Ф), for first time blend solution, establishes direct correlation between Ф performance quantified. device well correlated with Kuhn length cylinder related L

Язык: Английский

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Mesoporous organic solar cells

Chinese Chemical Letters, Год журнала: 2024, Номер 35(11), С. 109849 - 109849

Опубликована: Апрель 2, 2024

Язык: Английский

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