Stability of organic solar cells: toward commercial applications

Chemical Society Reviews, Год журнала: 2024, Номер 53(5), С. 2350 - 2387

Опубликована: Янв. 1, 2024

Organic solar cells (OSCs) have attracted a great deal of attention in the field clean energy due to their advantages transparency, flexibility, low cost and light weight. Introducing them market enables seamless integration into buildings windows, while also supporting wearable, portable electronics internet-of-things (IoT) devices. With development photovoltaic materials optimization fabrication technology, power conversion efficiencies (PCEs) OSCs rapidly improved now exceed 20%. However, there is significant lack focus on material stability device lifetime, causing severe hindrance commercial applications. In this review, we carefully review important strategies employed improve over past three years from perspectives design engineering. Furthermore, analyze discuss current progress terms air, light, thermal mechanical stability. Finally, propose future research directions overcome challenges achieving highly stable OSCs. We expect that will contribute solving problem OSCs, eventually paving way for applications near future.

Язык: Английский

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Unidirectional Sidechain Engineering to Construct Dual‐Asymmetric Acceptors for 19.23 % Efficiency Organic Solar Cells with Low Energy Loss and Efficient Charge Transfer

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(36)

Опубликована: Июль 18, 2023

Achieving both high open-circuit voltage (Voc ) and short-circuit current density (Jsc to boost power-conversion efficiency (PCE) is a major challenge for organic solar cells (OSCs), wherein energy loss (Eloss inefficient charge transfer usually take place. Here, three new Y-series acceptors of mono-asymmetric asy-YC11 dual-asymmetric bi-asy-YC9 bi-asy-YC12 are developed. They share the same asymmetric D1 AD2 (D1 =thieno[3,2-b]thiophene D2 =selenopheno[3,2-b]thiophene) fused-core but have different unidirectional sidechain on side, allowing fine-tuned molecular properties, such as intermolecular interaction, packing pattern, crystallinity. Among binary blends, PM6 : one has better morphology with appropriate phase separation higher order than asy-YC9 bi-asy-YC11 ones. Therefore, bi-asy-YC12-based OSCs offer PCE 17.16 % Voc Jsc , due reduced Eloss efficient properties. Inspired by strong NIR-absorption, introduced into L8-BO construct ternary OSCs. Thanks broadened absorption, optimized morphology, furtherly minimized achieve champion 19.23 %, which highest efficiencies among these annealing-free devices. Our developed engineering constructing bi-asymmetric provides an approach

Язык: Английский

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Ductile Oligomeric Acceptor‐Modified Flexible Organic Solar Cells Show Excellent Mechanical Robustness and Near 18% Efficiency

Advanced Materials, Год журнала: 2023, Номер 35(44)

Опубликована: Авг. 22, 2023

High power conversion efficiency (PCE) and mechanical robustness are key requirements for wearable applications of organic solar cells (OSCs). However, almost all highly efficient photoactive films comprising polymer donors (PD ) small molecule acceptors (SMAs) mechanically brittle. In this study, (PCE = 17.91%) robust (crack-onset strain [COS] 11.7%) flexible OSCs fabricated by incorporating a ductile oligomeric acceptor (DOA) into the PD :SMA system, representing most to date. The photophysical, mechanical, photovoltaic properties D18:N3 with different DOAs characterized. By introducing DOA DOY-C4 longer alkyl linker lower polymerization, D18:N3:DOY-C4-based exhibit significantly higher PCE (17.91%) 50% COS (11.7%) than D18:N3-based device 17.06%, 7.8%). based on D18:N3:DOY-C4 retain 98% initial after 2000 consecutive bending cycles, showing greater stability reference (maintaining 89% PCE). After careful investigation, it is hypothesized that enhancement in mainly due formation tie chains or entanglement ternary blend films. These results demonstrate have great potential achieving high-performance OSCs.

Язык: Английский

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Achieving Record‐High Stretchability and Mechanical Stability in Organic Photovoltaic Blends with a Dilute‐absorber Strategy

Advanced Materials, Год журнала: 2023, Номер 36(8)

Опубликована: Окт. 22, 2023

Organic solar cells (OSCs) have potential for applications in wearable electronics. Except high power conversion efficiency (PCE), excellent tensile properties and mechanical stability are required achieving high-performance OSCs, while the present metrics barely meet stretchable requirements. Herein, this work proposes a facile low-cost strategy constructing intrinsically OSCs by introducing readily accessible polymer elastomer as diluent all-polymer photovoltaic blends. Remarkably, record-high stretchability with fracture strain of up to 1000% elastic recovery >90% under cyclic tests realized active layers first time. Specifically, best-performing blends increased 250 times after blending. Previously unattainable performance (fracture >50% PCE >10%) achieved simultaneously resulting films. Furthermore, an overall evaluation parameter y is proposed efficiency-cost- balance blend The value dilute-absorber system two orders magnitude greater than those prior state-of-the-art systems. Additionally, devices prepared showcase stability. Overall, offers new avenue comprehensively evaluating organic electronic

Язык: Английский

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Design of Star‐Shaped Trimer Acceptors for High‐Performance (Efficiency > 19%), Photostable, and Mechanically Robust Organic Solar Cells

Advanced Energy Materials, Год журнала: 2024, Номер 14(8)

Опубликована: Янв. 2, 2024

Abstract High power conversion efficiency (PCE), long‐term stability, and mechanical robustness are prerequisites for the commercial applications of organic solar cells (OSCs). In this study, a new star‐shaped trimer acceptor (TYT‐S) is developed high‐performance OSCs with PCE 19.0%, high photo‐stability ( t 80% lifetime = 2600 h under 1‐sun illumination), crack‐onset strain (COS) 21.6% achieved. The isotropic molecular structure TYT‐S affords efficient multi‐directional charge transport electron mobility. Furthermore, its amorphous prevents formation brittle crystal‐to‐crystal interfaces, significantly enhancing properties OSC. As result, TYT‐S‐based demonstrate higher (19.0%) stretchability (COS 21.6%) than linear‐shaped (TYT‐L)‐based (PCE 17.5% COS 6.4%) small‐molecule (MYT)‐based 16.5% 1.3%). addition, increased size TYT‐S, relative to that MYT dimer (DYT), suppresses diffusion kinetics molecules, substantially improving photostability OSCs. Finally, effectively potential intrinsically stretchable (IS)‐OSCs constructed. IS‐OSCs exhibit device (strain at 31%) 14.4%.

Язык: Английский

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Recent progress and prospects of dimer and multimer acceptors for efficient and stable polymer solar cells

Chemical Society Reviews, Год журнала: 2024, Номер 53(9), С. 4674 - 4706

Опубликована: Янв. 1, 2024

This review summarizes the recent progress, key design principles and prospects of dimer multimer acceptors for developing polymer solar cells (PSCs) with high efficiency long-term stability.

Язык: Английский

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π–π Stacking Modulation via Polymer Adsorption for Elongated Exciton Diffusion in High‐Efficiency Thick‐Film Organic Solar Cells

Advanced Materials, Год журнала: 2024, Номер 36(21)

Опубликована: Фев. 22, 2024

Abstract Developing efficient organic solar cells (OSCs) with thick active layers is crucial for roll‐to‐roll printing. However, thicker often result in lower efficiency. This study tackles this challenge using a polymer adsorption strategy combined layer‐by‐layer approach. Incorporating insulator polystyrene (PS) into the PM6:L8‐BO system creates PM6+PS:L8‐BO blends, effectively suppressing trap states and extending exciton diffusion length mixed donor domain. Adding insulating polymers benzene rings to enhances π–π stacking of donors, boosting intermolecular interactions electron wave function overlap. results more orderly molecular stacking, longer lifetimes, higher lengths. The promoted long‐range leads high power conversion efficiencies 19.05% 18.15% blend films 100 300 nm thickness, respectively, as well respectable 16.00% 500 nm. These insights guide material selection better diffusion, offer method thick‐film OSC fabrication, promoting prosperous future practical mass production.

Язык: Английский

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Lightweight, surface hydrophobic and flame-retardant polydimethylsiloxane foam composites coated with graphene oxide via interface engineering

Progress in Organic Coatings, Год журнала: 2024, Номер 189, С. 108276 - 108276

Опубликована: Фев. 6, 2024

Язык: Английский

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Advances in Smart Photovoltaic Textiles

ACS Nano, Год журнала: 2024, Номер 18(5), С. 3871 - 3915

Опубликована: Янв. 23, 2024

Energy harvesting textiles have emerged as a promising solution to sustainably power wearable electronics. Textile-based solar cells (SCs) interconnected with on-body electronics meet such needs. These technologies are lightweight, flexible, and easy transport while leveraging the abundant natural sunlight in an eco-friendly way. In this Review, we comprehensively explore working mechanisms, diverse types, advanced fabrication strategies of photovoltaic textiles. Furthermore, provide detailed analysis recent progress made various types textiles, emphasizing their electrochemical performance. The focal point review centers on smart for electronic applications. Finally, offer insights perspectives potential solutions overcome existing limitations textile-based photovoltaics promote industrial commercialization.

Язык: Английский

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Advances in Stretchable Organic Photovoltaics: Flexible Transparent Electrodes and Deformable Active Layer Design

Advanced Materials, Год журнала: 2024, Номер 36(37)

Опубликована: Май 30, 2024

Stretchable organic photovoltaics (OPVs) have attracted significant attention as promising power sources for wearable electronic systems owing to their superior robustness under repetitive tensile strains and good compatibility. However, reconciling a high power-conversion efficiency reasonable flexibility is tremendous challenge. In addition, the development of stretchable OPVs must be accelerated satisfy increasing requirements niche markets mechanical robustness. OPV devices can classified either structurally or intrinsically stretchable. This work reviews recent advances in OPVs, including design mechanically robust transparent electrodes, photovoltaic materials, devices. Initially, an overview characteristics research progress areas provided. Subsequently, into flexible electrodes that directly affect performances summarized analyzed. Overall, this review aims provide in-depth understanding intrinsic properties highly efficient deformable active while also emphasizing advanced strategies simultaneously improving performance layer, material design, multi-component settings, structural optimization.

Язык: Английский

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