Realizing 17.5% Efficiency Flexible Organic Solar Cells via Atomic-Level Chemical Welding of Silver Nanowire Electrodes

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(19), P. 8658 - 8668

Published: April 26, 2022

Solution processable flexible transparent electrodes (FTEs) are urgently needed to boost the efficiency and mechanical stability of organic solar cells (OSCs) on a large scale. However, how balance optoelectronic properties meanwhile achieve robust behavior FTEs is still huge challenge. Silver nanowire (AgNW) electrodes, exhibiting easily tuned optoelectronic/mechanical properties, attracting considerable attention, but their poor contacts at junction site AgNWs increase sheet resistance reduce stability. In this study, an ionic liquid (IL)-type reducing agent containing Cl- dihydroxyl group was employed control reduction process silver (Ag) in AgNW-based precisely. The IL regulates Ag+ concentration through formation dissolution AgCl, whereas slowly reduces released form metal Ag. reduced Ag grew situ twin-crystal growth mode, facilitating atomic-level contact between This enforced decreased resistance, enhanced FTEs. As result, single-junction OSCs based chemically welded FTE achieved record power conversion efficiencies 17.52% (active area: 0.062 cm2) 15.82% 1.0 cm2). These devices also displayed bending peeling durability even under extreme test conditions.

Language: Английский

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Green Flexible Electronics: Natural Materials, Fabrication, and Applications

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(28)

Published: Feb. 10, 2023

Abstract The emergence of plastic electronics satisfies the increasing demand for flexible electronics. However, it has caused severe ecological problems. Flexible based on natural materials are to hopefully realize “green” and eco‐friendly concept. Herein, recent advances in design fabrication green reviewed. First, this review comprehensively introduces various derivatives, focusing particularly fibroin silk, wood paper, plants, biomass. Second, techniques modifying materials, including physical chemical methods, presented, after which their merits demerits thoroughly discussed. Green comprising electrical wires/electrodes, antennas, thermal management devices, transistors, memristors, sensors, energy‐harvesting energy‐storage displays, actuators, electromagnetic shielding, integration systems, described detail. Finally, perspectives existing challenges opportunities employ presented.

Language: Английский

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Material Design and Device Fabrication Strategies for Stretchable Organic Solar Cells

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(31)

Published: June 28, 2022

Abstract Recent advances in the power conversion efficiency (PCE) of organic solar cells (OSCs) have greatly enhanced their commercial viability. Considering technical standards (e.g., mechanical robustness) required for wearable electronics, which are promising application platforms OSCs, development fully stretchable OSCs (f‐SOSCs) should be accelerated. Here, a comprehensive overview f‐SOSCs, aimed to reliably operate under various forms stress, including bending and multidirectional stretching, is provided. First, requirements terms tensile cohesion/adhesion properties, summarized along with experimental methods evaluate those properties. Second, essential studies make each layer f‐SOSCs efficient discussed, emphasizing strategies simultaneously enhance photovoltaic properties active layer, ranging from material design fabrication control. Key improvements other components/layers (i.e., substrate, electrodes, interlayers) also covered. Lastly, considering that f‐SOSC research its infancy, current challenges future prospects explored.

Language: Английский

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Recent progress in flexible organic solar cells

eScience, Journal Year: 2022, Volume and Issue: 3(1), P. 100085 - 100085

Published: Nov. 17, 2022

Photovoltaic cells are one of the most promising renewable energy sources to address and environmental issues. Amongst many photovoltaic technologies, organic solar (OSCs) have numerous advantages, such as low cost, light weight, semi-transparency, flexibility. This last is a special merit OSCs, arising due intrinsic flexibility active layers. With applications in fields building-integrated photovoltaics wearable electronics, flexible OSCs (F-OSCs) developed rapidly, significant process has been made recent years. In this review, we summarize progress F-OSCs from perspective transparent electrodes. addition, large-area their potential briefly discussed. Finally, challenges for further development presented.

Language: Английский

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Harnessing the Structure‐Performance Relationships in Designing Non‐Fused Ring Acceptors for Organic Solar Cells

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(21)

Published: Feb. 17, 2023

Abstract The prerequisite for commercially viable organic solar cells (OSC) is to reduce the efficiency‐stability‐cost gap. Therefore, cost of materials should be reduced by minimizing synthetic steps, yet maintaining molecular planarity and efficiencies achieved fused ring acceptors (FRA). In this respect, developing non‐fused (NFRA) with suitable functionalization favor conformational effective packing beneficial cost‐effective. Presently, power conversion efficiency (PCE) NFRAs around 16 %, lower than 19 % FRAs. Despite their potential, a thorough understanding structural design necessary efficient OSCs. This article pays special attention concept developed in last years analyzed approach toward improvement, an important step technological application.

Language: Английский

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Achieving 17.94% efficiency all-polymer solar cells by independently induced D/A orderly stacking

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(5), P. 2327 - 2337

Published: Jan. 1, 2023

Compatible polymer donor can effectively penetrate into D/A aggregations and independently optimize their orderly stacking to achieve highly efficient APSCs.

Language: Английский

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Advances in organic solar cells: Materials, progress, challenges and amelioration for sustainable future

Sustainable Energy Technologies and Assessments, Journal Year: 2024, Volume and Issue: 63, P. 103632 - 103632

Published: Feb. 14, 2024

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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Recent Progress of Solution‐Processed Thickness‐Insensitive Cathode Interlayers for High‐Performance Organic Solar Cells

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

Published: Jan. 5, 2025

Abstract Organic solar cells (OSCs) have shown great applications potential in flexible/wearable electronics, indoor photovoltaics and so on. The efficiencies of single‐junction OSCs exceeded 19%, making the commercialization brighter. Large‐area printing fabrication is a key way to OSCs, solution‐processed thickness‐insensitive cathode interlayers (CILs) are urgently needed for large‐area fabrication. High electron mobility interfacial materials (CIMs) critical enable CILs. N‐type self‐doped characteristics can endow organic CIMs with high mobility. Different type n‐type show different applicability conventional inverted OSCs. External dopants further increase hybrid blends. Particularly, ZnO doped dyes achieve superior photoconductivity This review focuses on CILs high‐performance In small molecules polymers, external n‐doped blends as summarized. small‐molecular electrolytes polyelectrolytes, PEI‐/PEIE‐based (including organic‐organic ZnO‐organic) summarized relationships between particular functions chemical structures highlighted. Finally, summary outlook provided.

Language: Английский

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Perspective on Flexible Organic Solar Cells for Self-Powered Wearable Applications

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

The growing advancement of wearable technologies and sophisticated sensors has driven the need for environmentally friendly reliable energy sources with robust mechanical stability. Flexible organic solar cells (OSCs) have become promising substitutes traditional solutions thanks to their remarkable flexibility high power conversion efficiency (PCE). These unique properties allow flexible OSCs seamlessly integrate diverse devices substrates, making them an excellent choice powering various electronic by efficiently harvesting energy. This review summarizes recent achievements in from perspective self-powered applications. It discusses advancements materials, including substrates transparent electrodes, evaluates performance criteria, compares PCEs rigid counterparts. Subsequently, novel applications are explored. Finally, a summary perspectives on current challenges obstacles facing wearables provided, aiming inspire further research toward practical implementations.

Language: Английский

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