Modulation of Morphological, Mechanical, and Photovoltaic Properties of Ternary Organic Photovoltaic Blends for Optimum Operation DOI
Zhongxiang Peng, Kui Jiang, Yunpeng Qin

et al.

Advanced Energy Materials, Journal Year: 2021, Volume and Issue: 11(8)

Published: Jan. 14, 2021

Abstract Ternary solar cells comprising both fullerene and nonfullerene acceptors have shown a rapid increase in power conversion efficiency, which holds promise commercial applications. Despite the progress, there is still lack of fundamental understanding relations between microstructure (photovoltaic/mechanical) properties these ternary blend systems. In this work, dependence molecular packing, phase separation, mechanical properties, photovoltaic performance on acceptor composition recently certificated system thoroughly investigated by combined scattering microscopy characterizations. It demonstrated that incorporating small amount (20% weight) PC 71 BM to PM6:N3 binary can afford best device efficiency highest ductility simultaneously. This maximum due optimized order, orientational texture, separation. Additionally, increasing results higher elastic modulus, as probed two distinct methods. A more crucial observation modulus blends be well captured an extended Halpin–Tsai model. finding expected enable prediction various kinds are widely used other electronics.

Language: Английский

Organic Solar Cells—The Path to Commercial Success DOI Creative Commons
Moritz Riede, Donato Spoltore, Karl Leo

et al.

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 11(1)

Published: Nov. 16, 2020

Abstract Organic solar cells have the potential to become cheapest form of electricity, beating even silicon photovoltaics. This article summarizes state art in field, highlighting research challenges, mainly need for an efficiency increase as well improvement long‐term stability. It discusses possible current and future applications, such building integrated photovoltaics or portable electronics. Finally, environmental footprint this renewable energy technology is evaluated, be generation with lowest carbon all.

Language: Английский

Citations

414
Achieving 19% Power Conversion Efficiency in Planar‐Mixed Heterojunction Organic Solar Cells Using a Pseudosymmetric Electron Acceptor DOI
Wei Gao, Qi Feng, Zhengxing Peng

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(32)

Published: June 20, 2022

A record power conversion efficiency (PCE) of over 19% is realized in planar-mixed heterojunction (PMHJ) organic solar cells (OSCs) by adopting the asymmetric selenium substitution strategy making a pseudosymmetric electron acceptor, BS3TSe-4F. The combined molecular asymmetry with more polarizable increases dielectric constant D18/BS3TSe-4F blend, helping lower exciton binding energy. On other hand, dimer packing BS3TSe-4F facilitated to enable free charge generation, efficient dissociation and lowering radiative recombination loss (ΔE2 ) OSCs. As result, PMHJ OSCs based on achieve PCE 18.48%. By incorporating another mid-bandgap acceptor Y6-O into form ternary PMHJ, higher open-circuit voltage (VOC can be achieved realize an impressive 19.03%. findings using acceptors enhancing device provides effective way develop highly materials for

Language: Английский

Citations

399
Achieving over 17% efficiency of ternary all-polymer solar cells with two well-compatible polymer acceptors DOI Creative Commons
Rui Sun, Wei Wang, Han Yu

et al.

Joule, Journal Year: 2021, Volume and Issue: 5(6), P. 1548 - 1565

Published: April 23, 2021

Language: Английский

Citations

337
Skin-Interfaced Wearable Sweat Sensors for Precision Medicine DOI
Jihong Min, Jiaobing Tu, Changhao Xu

et al.

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(8), P. 5049 - 5138

Published: March 27, 2023

Wearable sensors hold great potential in empowering personalized health monitoring, predictive analytics, and timely intervention toward healthcare. Advances flexible electronics, materials science, electrochemistry have spurred the development of wearable sweat that enable continuous noninvasive screening analytes indicative status. Existing major challenges include: improving extraction sensing capabilities, form factor device for minimal discomfort reliable measurements when worn, understanding clinical value biomarker discovery. This review provides a comprehensive outlines state-of-the-art technologies research strive to bridge these gaps. The physiology sweat, materials, biosensing mechanisms advances, approaches induction sampling are introduced. Additionally, design considerations system-level devices, spanning from strategies prolonged efficient powering wearables, discussed. Furthermore, applications, data commercialization efforts, challenges, prospects precision medicine

Language: Английский

Citations

322
Flexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture DOI Creative Commons
Long Hu, Qian Zhao, Shujuan Huang

et al.

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Jan. 20, 2021

All-inorganic CsPbI3 perovskite quantum dots have received substantial research interest for photovoltaic applications because of higher efficiency compared to solar cells using other materials and the various exciting properties that perovskites offer. These dot devices also exhibit good mechanical stability amongst thin-film technologies. We demonstrate endurance films bulk thin film highlight importance further on high-performance flexible optoelectronic nanoscale grains as an advantage. Specifically, we develop a hybrid interfacial architecture consisting dot/PCBM heterojunction, enabling energy cascade efficient charge transfer adhesion. The champion cell has 15.1% (stabilized power output 14.61%), which is among highest report date. Building this strategy, 12.3% in photovoltaics.

Language: Английский

Citations

270
Recent progress in organic solar cells (Part II device engineering) DOI Open Access
Yahui Liu, Bowen Liu, Chang‐Qi Ma

et al.

Science China Chemistry, Journal Year: 2022, Volume and Issue: 65(8), P. 1457 - 1497

Published: May 26, 2022

Language: Английский

Citations

253
Electrospun nanofiber-based soft electronics DOI Creative Commons
Yan Wang, Tomoyuki Yokota, Takao Someya

et al.

NPG Asia Materials, Journal Year: 2021, Volume and Issue: 13(1)

Published: March 8, 2021

Electrospun nanofibers have received considerable attention in the field of soft electronics owing to their promising advantages and superior properties flexibility and/or stretchability, conductivity, transparency; furthermore, one-dimensional nanostructure, high surface area, diverse fibrous morphologies are also desirable. Herein, we provide an overview electrospun nanofiber-based electronics. A brief introduction unique structure nanofiber materials is provided, assembly strategies for flexible/stretchable highlighted. We then summarize latest progress design fabrication representative electronic devices utilizing nanofibers, such as conductors, sensors, energy harvesting storage devices, transistors. Finally, a conclusion several future research directions proposed. The development low-cost, efficient, large-scale methods fabricating 'soft' electronics, conducting with improved increases range possible applications. Flexible useful foldable displays, healthcare monitoring, artificial skins implantable bioelectronics. One approach these construct them from conductive nanofibers. Takao Someya University Tokyo colleagues review recent advances constructing using technique called electrospinning. Electrospinning works by drawing molten material through nozzle into electric produce strands much finer than human hair. authors various assembling flexible stretchable transistors, components storage. This introduce

Language: Английский

Citations

208
Balancing the efficiency, stability, and cost potential for organic solar cells via a new figure of merit DOI Creative Commons
Wenyan Yang, Wei Wang, Yuheng Wang

et al.

Joule, Journal Year: 2021, Volume and Issue: 5(5), P. 1209 - 1230

Published: April 21, 2021

Language: Английский

Citations

198
Functional Fiber Materials to Smart Fiber Devices DOI
Chuanrui Chen,

Jianyou Feng,

Jiaxin Li

et al.

Chemical Reviews, Journal Year: 2022, Volume and Issue: 123(2), P. 613 - 662

Published: Aug. 17, 2022

The development of fiber materials has accompanied the evolution human civilization for centuries. Recent advances in science and chemistry offered fibers new applications with various functions, including energy harvesting, storing, displaying, health monitoring treating, computing. unique one-dimensional shape devices endows them advantages to work as human-interfaced electronics due small size, lightweight, flexibility, feasibility integration into large-scale textile systems. In this review, we first present a discussion basics design principles devices, followed by comprehensive analysis on recently developed devices. Finally, provide current challenges facing field give an outlook future research directions. With novel continuing be discovered after two decades research, envision that could have important impact our life near future.

Language: Английский

Citations

182
Realizing 17.5% Efficiency Flexible Organic Solar Cells via Atomic-Level Chemical Welding of Silver Nanowire Electrodes DOI
Guang Zeng, Weijie Chen, Xiaobin Chen

et al.

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

Citations

180