Nano Research, Journal Year: 2024, Volume and Issue: 17(3), P. 1564 - 1570
Published: Feb. 1, 2024
Language: Английский
Advanced Materials, Journal Year: 2022, Volume and Issue: 34(32)
Published: June 21, 2022
Abstract Organic solar cells (OSCs) have experienced rapid progress with the innovation of near‐infrared (NIR)‐absorbing small‐molecular acceptors (SMAs), while unique electronic properties SMAs raise new challenges in relation to cathode engineering for effective electron collection. To address this issue, two fluorinated perylene‐diimides (PDIs), PDINN‐F and PDINN‐2F, are synthesized by a simple fluorination method, application as interlayer (CIL) materials. The bay‐fluorinated PDI‐based CILs possess lower lowest unoccupied molecular orbital (LUMO) energy level ≈−4.0 eV, which improves alignment at NIR‐SMAs (such BTP‐eC9)/CIL favorable extraction efficiency. monofluorinated shows higher mobility better improved interfacial compatibility. PDINN‐F‐based OSCs PM6:BTP‐eC9 active layer exhibit an enhanced fill factor larger short‐circuit current density, leading high power conversion efficiency (PCE) exceeding 18%. devices CIL retain more than 80% their initial PCE after operating maximum point under continuous illumination 750 h. This work prescribes facile, cost‐effective, scalable method preparation stable, high‐performance CILs, instilling promise NIR‐SMAs‐based moving forward.
Language: Английский
Citations
107
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: March 4, 2023
Abstract The stability of organic solar cells is a key issue to promote practical applications. Herein, we demonstrate that the device performance enhanced by an Ir/IrO x electron-transporting layer, benefiting from its suitable work function and heterogeneous distribution surface energy in nanoscale. Notably, champion -based devices exhibit superior stabilities under shelf storing ( T 80 = 56696 h), thermal aging 70 13920 maximum power point tracking 1058 compared ZnO-based devices. It can be attributed stable morphology photoactive layer resulting optimized molecular donor acceptor absence photocatalysis devices, which helps maintain improved charge extraction inhibited recombination aged This provides reliable efficient material toward cells.
Language: Английский
Citations
71
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)
Published: Jan. 17, 2024
Abstract Efficient cathode interfacial materials (CIMs) are essential components for effectively enhancing the performance of organic solar cells (OSCs). Although high‐performance CIMs desired to meet requirements various OSCs, potential candidates scarce. Herein, an amino‐functionalized graphdiyne derivative (GDY‐N) is developed, which represents first example GDY that exhibits favorable solubility in alcohol. Utilizing GDY‐N as CIM, outstanding champion PCE 19.30% devices based on D18‐Cl:L8‐BO (certified result: 19.05%) achieved, among highest efficiencies reported date OSCs. Remarkably, exhibit a thickness‐insensitive characteristic, maintaining 95% their initial efficiency even with film thickness 25 nm. Moreover, displays wide universality and facilitates exceptional stability This work not only enriches diversity derivatives, but also demonstrates feasibility derivatives high tolerance
Language: Английский
Citations
47
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
Citations
4
SusMat, Journal Year: 2025, Volume and Issue: unknown
Published: March 17, 2025
ABSTRACT All‐polymer solar cells (all‐PSCs) are of interest owing to their unique advantages, including remarkably improved device stability and exceptional mechanical stretchability. Over recent years, there has been a notable increase in the power conversion efficiency (PCE) all‐PSCs, largely attributed advancements morphology control active layer. Notably, domain size is paramount importance as it impacts critical factors such exciton dissociation, charge transport, collection. However, low glass transition temperature conjugated polymers, coupled with minimal change mixing entropy, often results an excessive degree phase separation. Consequently, essential comprehend evolution separation develop strategies regulate size. In this review, we elucidate key parameters that contribute enhancement present qualitative quantitative characterization techniques for Building on foundation, introduce principles regulating sizes, encompassing crystallinity, miscibility, molecular conformation from thermodynamic perspective, well film‐forming kinetics crystallization sequence kinetic perspective. Lastly, offer insights into current challenges potential future prospects all‐PSCs.
Language: Английский
Citations
3
Nano Energy, Journal Year: 2022, Volume and Issue: 103, P. 107802 - 107802
Published: Sept. 13, 2022
Language: Английский
Citations
51
Small, Journal Year: 2023, Volume and Issue: 20(8)
Published: Oct. 12, 2023
Recently, the power conversion efficiency (PCE) of organic solar cells (OSCs) has increased dramatically, making a big step toward industrial application OSCs. Among numerous OSCs, benzodithiophene (BDT)-based OSCs stand out in achieving efficient PCE. Notably, single-junction using BDT-based polymers as donor materials have completed PCE over 19%, indicating dramatic potential for preparing high-performance large-scale This paper reviews recent progress based on BDT polymer (PDMs). The development is concisely summarized. Meanwhile, relationship between structure PDMs and performance further described this review. Besides, prospect single junction are also discussed.
Language: Английский
Citations
27
Advanced Science, Journal Year: 2023, Volume and Issue: 10(26)
Published: July 3, 2023
The cathode interlayer plays a vital role in organic solar cells, which can modify the work function of electrodes, lower electron extraction barriers, smooth surface active layer, and remove solvent residuals. However, development lags behind rapidly improved cells because their intrinsic high tension lead to poor contact with layers. Herein, double-dipole strategy is proposed enhance properties interlayers, induced by incorporating nitrogen- bromine-containing materials. To verify this approach, state-of-the-art layer composed PM6:Y6 two prototypical materials, PDIN PFN-Br selected. Using PDIN: (0.9:0.1, wt.%) devices reduce electrode function, suppress dark current leakage, improve charge extractions, leading enhanced short circuit density fill factor. bromine ions tend break from form new chemical bond silver electrode, adsorb extra dipoles directed silver. These findings on provide insights into hybrid interlayers for efficient non-fullerene cells.
Language: Английский
Citations
23
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(12)
Published: Jan. 28, 2024
Abstract The ternary strategy has proven to be an effective method for improving the efficiency of organic solar cells (OSCs). However, designing and selecting third component still pose challenges. In this study, issue is addressed by focusing on PBDB‐T:Y18‐F binary system introducing a new, strong luminescent, asymmetric small‐molecule acceptor (SMA) called L8‐CBIC‐Cl, which shares similar skeleton with Y18‐F. similarity in molecular framework facilitates good compatibility between two acceptors, resulting formation alloy‐like phase. Furthermore, norbornenyl‐modified end group L8‐CBIC‐Cl contributes its luminescent properties, turn leads low non‐radiative energy loss high open‐circuit voltage. Consequently, PBDB‐T:L8‐CBIC‐Cl:Y18‐F based devices realize power conversion (PCE) up 17.01%, higher than device (14.49%). Importantly, exhibits universality as guest other three systems (D18:Y6, D18:BTP‐eC9‐4F, D18:L8‐BO). D18:L8‐BO:L8‐CBIC‐Cl shows impressive 19%. work demonstrates that employing SMA PLQY better miscibility host great potential developing high‐efficiency OSCs.
Language: Английский
Citations
16
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
Citations
13