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

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4674 - 4706

Published: Jan. 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.

Language: Английский

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Unveiling the Strain‐induced Microstructural Evolution and Morphology‐Stretchability Correlations of Intrinsically Stretchable Organic Photovoltaic Films

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(18)

Published: Feb. 9, 2024

Abstract The progress of stretchable and wearable photovoltaics relies heavily on intrinsically active layer films. Nevertheless, there is a paucity research clarifying the connections between their microstructure, performance, adaptation to large strain in polymer electronic current study utilizes multiple synchrotron X‐ray scattering methods collectively examine correlations morphology stretchability, as well microstructural evolution induced by stretching three sample cases highly ternary blend These blends contain over 30% weight elastomer, such styrene‐ethylene‐butylene‐styrene block copolymer, integrated into high‐performance polymer:nonfullerene small molecule mixture. Specifically, real‐time changes these durable organic photovoltaic films with elastomers are monitored when subjected tensile through situ scattering. experiments demonstrate that polymeric can effectively lower degree crystallinity deform crystallites semiconductor molecules. elastomeric component aids stress dispersion during stretching, thereby improving durability This provides new recommendations for advancing optoelectronic devices.

Language: Английский

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High-performance intrinsically stretchable organic solar cells based on flexible spacer incorporated dimerized small-molecule acceptors

Nano Energy, Journal Year: 2024, Volume and Issue: 125, P. 109541 - 109541

Published: March 26, 2024

Language: Английский

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Advances in bio-integrated wearable and implantable optoelectronic devices for cardiac healthcare

Cyborg and Bionic Systems, Journal Year: 2024, Volume and Issue: 5

Published: Jan. 1, 2024

With the prevalence of cardiovascular disease, it is imperative that medical monitoring and treatment become more instantaneous comfortable for patients. Recently, wearable implantable optoelectronic devices can be seamlessly integrated into human body to enable physiological in an imperceptible spatiotemporally unconstrained manner, opening countless possibilities intelligent healthcare paradigm. To achieve biointegrated cardiac healthcare, researchers have focused on novel strategies construction flexible/stretchable systems. Here, we overview progress flexible stretchable optoelectronics devices. Firstly, device design addressed, including mechanical design, interface adhesion, encapsulation strategies. Next, practical applications monitoring, optogenetics, nongenetic stimulation are presented. Finally, outlook systems discussed.

Language: Английский

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Mechanically robust and stretchable organic solar cells plasticized by small-molecule acceptors

Science, Journal Year: 2025, Volume and Issue: 387(6732), P. 381 - 387

Published: Jan. 23, 2025

Emerging wearable devices would benefit from integrating ductile photovoltaic light-harvesting power sources. In this work, we report a small-molecule acceptor (SMA), also known as non–fullerene (NFA), designed for stretchable organic solar cell ( s -OSC) blends with large mechanical compliance and performance. Blends of the organosilane-functionalized SMA BTP-Si4 polymer donor PNTB6-Cl achieved conversion efficiency (PCE) >16% ultimate strain (ε u ) >95%. Typical SMAs suppress OSC blend ductility, but addition enhances it. Although is less crystalline than other SMAs, it retains considerable electron mobility highly miscible essential enhancing ε . Thus, -OSCs PCE > 14% operating normally under various deformations (>80% retention an 80% strain) were demonstrated. Analysis several SMA-polymer revealed general molecular structure–miscibility–stretchability relationships designing blends.

Language: Английский

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Bioinspired interfacial engineering for highly stretchable electronics

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

Published: Feb. 4, 2025

The seamless integration of rigid/flexible electronic components into stretchable substrates is imperative for the realization reliable electronics. However, transition from flexible-to-stretchable presents inherent challenges in interfacial behavior, predominantly arising disparities elastic moduli, thereby rendering their arduous practical deployment. Here, we introduce a bioinspired interface-engineered flexible island (BIEFI), which effectively facilitates creation highly electronics by optimizing interface with mechanical interlocking mechanisms, resilient to physical deformations. Various components, such as light-emitting diodes (LEDs) and solar cells, are affixed onto island, showcasing its versatility robust platform rigid while ensuring entire substrate maintains high stretchability. Additionally, smart workout monitoring system demonstrated integrating resistance band platform. This approach seamlessly integrates wide range rigid, flexible, durability under diverse limited behavior. authors present an design deformations

Language: Английский

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Establishing Co‐Continuous Network of Conjugated Polymers and Elastomers for High‐Performance Polymer Solar Cells with Extreme Stretchability

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(26)

Published: May 13, 2024

Abstract High power conversion efficiency (PCE) and mechanical robustness are prerequisites for wearable applications of organic solar cells (OSCs). However, stretchability present active systems (i.e., crack‐onset strain (COS) < 30%) should be improved. While introducing elastomers into is considered a simple method improving stretchability, the inclusion typically results in decrease PCE OSC with limited enhancement due to lack interconnected electrical pathways. In this study, it developed efficient intrinsically stretchable (IS)‐OSCs exceptional robustness, by constructing co‐continuous networks conjugated polymers (D18) (SEBS) within layers. It demonstrated that blend film specific ratio (40:60 w/w) D18:SEBS crucial forming structures, establishing well‐connected channels. Consequently, D18 0.4 :SEBS 0.6 /L8‐BO OSCs achieve 16‐times higher (COS = 126%) than based on D18/L8‐BO 8%), while achieving 4‐times (12.13%) compared SEBS‐rich layers (D18 0.2 0.8 /L8‐BO, 3.15%). Furthermore, ‐based IS‐OSCs preserve 86 90% original PCEs at 50% after 200 stretching/releasing cycles 15% strain, respectively, demonstrating highest among reported IS‐OSCs.

Language: Английский

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Understanding photochemical degradation mechanisms in photoactive layer materials for organic solar cells

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(14), P. 7426 - 7454

Published: Jan. 1, 2024

Over the past decades, field of organic solar cells (OSCs) has witnessed a significant evolution in materials chemistry, which resulted remarkable enhancement device performance, achieving efficiencies over 19%. The photoactive layer OSCs play crucial role light absorption, charge generation, transport and stability. To facilitate scale-up OSCs, it is imperative to address photostability these electron acceptor donor materials, as their photochemical degradation process remains challenge during photo-to-electric conversion. In this review, we present an overview development emphasizing aspects chemical stability behavior that are linked OSCs. Throughout each section, highlight pathways for link degradation. We also discuss existing interdisciplinary challenges obstacles impede photostable materials. Finally, offer insights into strategies aimed at enhancing future directions developing photo-active layers, facilitating commercialization

Language: Английский

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Simultaneously Improving Stretchability and Efficiency of Flexible Organic Solar Cells by Incorporating a Copolymer Interlayer in Active Layer

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)

Published: June 26, 2024

Abstract Mechanical stretchability is a vital criterion for the wearable application of organic solar cells (OSCs), while excessive rigidity fused‐ring small molecular acceptors make photovoltaic film hard to meet stretchable requirements. Herein, an effective strategy developed construct intrinsically active layer by inserting copolymer PM6 ‐b‐ PYSe as interlayer between layer‐by‐layer processed D18 and BTP‐eC9. The shunts penetration BTP‐eC9 facilitates appropriate phase separation, favoring enhanced crack onset strain 17.69% compared D18/BTP‐eC9 (9.67%). Combining with optimal energy levels, prolonged carrier lifetime, suppressed bimolecular recombination aroused incorporation PM6‐ b ‐PYSe, D18/PM6‐ ‐PYSe/BTP‐eC9‐based OSC yields encouraging efficiency 17.97%. In particular, device demonstrates excellent mechanical property, which can retain over 80% after 4000 bending cycles. This work provides simultaneously enhance intrinsic performance flexible OSCs.

Language: Английский

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Efficient and Photostable Organic Solar Cells Achieved by Alloyed Dimer Acceptors with Tailored Linker Structures

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

Published: June 27, 2024

Abstract High power conversion efficiency (PCE) and long‐term stability are prerequisites for commercialization of organic solar cells (OSCs). Herein, two dimer acceptors (DYTVT DYTCVT) developed with different properties through linker engineering, study their effects as alloy‐like on the photovoltaic performance photostability OSCs. These ternary OSCs effectively combine advantages both acceptors. DYTVT, characterized by its high backbone planarity, ensures elevated electron mobility glass‐transition temperature ( T g ), leading to efficient charge transport enhanced Conversely, DYTCVT, significant dipole moment electrostatic potential, enhances compatibility alloy donors refines blend morphology, facilitating generation in Consequently, D18:DYTVT:DYTCVT exhibit higher PCE (18.4%) compared D18:MYT (monomer acceptor, = 16.5%), D18:DYTVT (PCE 17.4%), D18:DYTCVT 17.0%) Furthermore, owing (133 °C) than MYT 80 DYTCVT 120 °C), have significantly t 80% lifetime 4250 h under 1‐sun illumination) 40 h) 2910 h).

Language: Английский

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