Novel Long-Conjugated Backbone-Based Non-Fullerene Acceptors for Efficient and Eco-Friendly Ternary Organic Solar Cells

Sustainability, Journal Year: 2025, Volume and Issue: 17(2), P. 512 - 512

Published: Jan. 10, 2025

Organic solar cells (OSCs) are made from carbon-rich organic compounds with low environmental impacts, unlike the silicon in traditional panels. Some of these materials can be broken down and reprocessed, enabling recovery valuable components. Specifically, active-layer that make up OSCs designed sustainability mind. However, it is important to note practical active used for commercialization still an area research development due their efficiency/stability processability. Herein, we synthesized three A-D-A’-D-A-type long-conjugated non-fullerene acceptors (NFAs) by incorporating various electron-withdrawing groups into benzothiadiazole-diindacenodithiophene core. These NFAs, changing end-capping groups, exhibit not only distinct physical, optical, electrochemical properties, but also differences crystallinity exciton dissociation. As a result, they exhibited significant photovoltaic performance PM6 donor-based binary devices. The introduction small amounts NFAs as third component PM6:BTP-eC9 blend significantly enhanced its photon harvesting capabilities influenced charge transfer dynamics. Finally, achieved remarkable power conversion efficiency nearly 17% utilizing eco-friendly solvent. This study provides insights efficient OSCs.

Language: Английский

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Advancements in Organic-Based Hybrid Tandem Solar Cells Considering Light Absorption and Spectral Matching of Organic Materials

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(6), P. 3136 - 3168

Published: June 3, 2024

Organic solar cells (OSCs) have emerged as promising energy harvesters owing to their outstanding optoelectronic properties, approaching a maximum power conversion efficiency of over 19%. However, single-junction OSCs limitations in improving transmission and thermalization losses. To alleviate these drawbacks, tandem configuration was devised, involving the stacking two subcells absorb broad spectrum minimize This strategy is not limited organic/organic-based systems but extends organic/perovskite-, organic/colloidal quantum dot (CQD)-, organic/amorphous silicon (a-Si)-based (TSCs). Review commences with brief overview developments organic photoabsorbers introduces general concepts TSCs. Then, we summarize recent research endeavors for organic/organic-, organic/CQD-, organic/a-Si-based hybrid Lastly, concludes by offering insights prospects enhancing performance organic-based TSCs ≥25%.

Language: Английский

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Strategies to achieve efficiencies of over 19% for organic solar cells

Cell Reports Physical Science, Journal Year: 2025, Volume and Issue: 6(1), P. 102390 - 102390

Published: Jan. 1, 2025

Language: Английский

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Indacenodithiophene‐Based Medium‐Bandgap Guest Acceptor Enables High‐Efficiency Ternary Organic Solar Cells

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

The ternary organic solar cells (OSCs) have been proven to be an effective strategy for achieving high power conversion efficiency (PCE), exhibiting substantial potential continuous enhancement of device performance. In this work, a novel nonfullerene acceptor, IDT-FN, is developed utilizing renowned indacenodithiophene (IDT) core and moderately intense electron-withdrawing terminal groups, serving as the third component in OSCs. IDT-FN demonstrates excellent complementary light absorption cascaded energy levels with host materials D18 CH-6F, resulting enhanced photon harvesting charge transport within blend. Therefore, even as-cast manages surpass optimal binary device, superior PCE 17.34% compared latter's 17.08%. Through optimization, devices attain impressive 18.32%, accompanied by open-circuit voltage (Voc) 0.897 V, fill factor 0.745, short-circuit current density (Jsc) 27.41 mA cm-2. This significant success IDT-based medium-bandgap guests achieve state-of-the-art

Language: Английский

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Tetracyanobutadiene- and dicyanoquinodimethane-functionalized D′-A-(π)-D-(π)-A-D′ type indacenodithiophene small-molecule chromophores: Synthesis, optoelectronic properties and photovoltaic response

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116376 - 116376

Published: March 1, 2025

Language: Английский

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Molecular design for low-cost organic photovoltaic materials

Nature Reviews Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 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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17.2% Efficiency for Completely Non‐Fused Acceptor Organic Solar Cells Via Re‐Intermixing Strategy in D/A Stratified Active Layer

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

Published: Sept. 9, 2024

Abstract Pursuing power conversion efficiency (PCE) is the priority of developing organic solar cells (OSCs) based on low‐cost completely non‐fused ring acceptors. Herein, a donor/acceptor re‐intermixing strategy to enhance photon capturing process, previously established well‐stratified active layer morphology reported. By adding 20 wt% PTQ10 (polymer donor) into acceptor's precursor, device PCE increased 16.03% from 15.11% D18/A4T‐16 control system, which attributed additional charge generation interface and suppressed bimolecular recombination. On contrary, using equal ratio PM6 leads significant loss, indicating importance considering vertical distribution perspective thermodynamics. Moreover, cutting‐edge level 17.21% for acceptor systems realized by altering PBQx‐TF/TBT‐26 PTQ11, via identical processing strategy. This work thus presents attractive engineering cell performance, as well in‐depth understanding.

Language: Английский

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Overcoming Light Loss in Semi-Transparent Ternary Organic Solar Cells with Ultra-Thin Metal Electrodes

Published: Jan. 1, 2024

Language: Английский

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Miscibility, crystallization and morphology in the novel polylactide/poly(4-hydroxybutyrate) blends

Polymer, Journal Year: 2024, Volume and Issue: 309, P. 127422 - 127422

Published: July 24, 2024

Language: Английский

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