Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 42, P. e01173 - e01173
Published: Nov. 12, 2024
Language: Английский
Advanced Science, Journal Year: 2024, Volume and Issue: 11(23)
Published: April 3, 2024
Abstract In this study, a novel wide‐bandgap small molecule guest material, ITOA, designed and synthesized for fabricating efficient ternary organic solar cells (OSCs) ITOA complements the absorbance of PM6:Y6 binary system, exhibiting strong crystallinity modest miscibility. optimizes morphology by promoting intensive molecular packing, reducing domain size, establishing preferred vertical phase distribution. These features contribute to improved well‐balanced charge transport, suppressed carrier recombination, exciton dissociation. Consequently, significantly enhanced efficiency 18.62% device is achieved, accompanied increased short‐circuit current density ( J SC ), fill factor (FF), open‐circuit voltage V OC ). Building on success, replacing Y6 with BTP‐eC9 leads an outstanding PCE 19.33% OSCs. Notably, introduction expedites formation optimized morphology, resulting in impressive 18.04% without any postprocessing. Moreover, exhibits operational stability under maximum power point (MPP) tracking. This comprehensive study demonstrates that rationally can optimize reduce energy loss, streamline fabrication process, essential achieving high OSCs, paving way practical commercial applications.
Language: Английский
Citations
36
Computational and Theoretical Chemistry, Journal Year: 2025, Volume and Issue: 1246, P. 115102 - 115102
Published: Feb. 3, 2025
Language: Английский
Citations
4
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159972 - 159972
Published: Jan. 1, 2025
Language: Английский
Citations
3
ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(9), P. 4209 - 4217
Published: Aug. 1, 2024
Improving the uniformity and density of self-assembled monolayers (SAMs) is crucial to elevate photovoltaic performance organic solar cells (OSCs). Herein, we introduced small molecules 1-hydroxybenzotriazole (HOBT) modulate distribution electrical properties (4-(7H-dibenzo[c,g]carbazol-7-yl)butyl)phosphonic acid (4PADCB) on indium tin oxide (ITO) transparent electrodes in an innovative manner. The hydroxyl group HOBT interacts with phosphate SAMs, while steric repulsion exerted by backbone efficiently regulates SAMs. This led a more uniform dense SAMs ITO. Furthermore, HOBT-modified have improved crystallization vertical phase separation upper active layer. Consequently, PM6:BTP-eC9 binary OSCs based exhibit impressive PCE 19.66%. Our work presents effective strategy for regulating SAM morphology offers promising approach advancing OSCs.
Language: Английский
Citations
14
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown
Published: June 22, 2024
Abstract The cathode interface layers (CILs) play a crucial role in enhancing the performance of organic solar cells (OSCs). However, challenges arise due to high work function CIL and inadequate contact with active layer, leading trap recombination poor charge extraction. In this study, novel approach is proposed improve injection extraction CILs by incorporating polyphenols, trihydroxybenzoic acid (TBA). Focusing on PDINN, its successfully reduced from 4.14 eV 3.80 obtained collection efficiency 91.23% through TBA regulation. These enhancements can be ascribed improved between layer CILs, enhanced formation fine fiber phase width inhibited recombination. As result, power conversion (PCE) binary OSCs comprising PM6: BTP‐ec9 exhibits an increase 18.2% 19.3%, placing it among one highest PCE values. Moreover, demonstrated notable applicability for another as well various systems. Overall, research underscores importance regulating modifying fully exploit their potential devices, while laying groundwork optimizing stability.
Language: Английский
Citations
11
Organic Electronics, Journal Year: 2025, Volume and Issue: unknown, P. 107226 - 107226
Published: Feb. 1, 2025
Language: Английский
Citations
2
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
Abstract Developing electron‐deficient (hetero)arenes with optimized geometries and electronic properties is imperative for advancing n ‐type polymers organic devices. We report here the design synthesis of two chlorinated imide‐functionalized heteroarenes, namely chlorine‐substituted bithiophene imide (ClBTI) its fused dimer (ClBTI2). The corresponding show a near‐planar framework, appropriate frontier molecular orbital levels, good solubility. When integrated into thin‐film transistors, ClBTI2‐based n‐type polymer afforded unipolar electron mobility up to 0.48 cm 2 V −1 s . binary all‐PSCs based on PM6 new power conversion efficiency (PCE) exceeding 1%. Interestingly, by introducing these ordered structure, high crystallinity, sizable as third component host system PM6:PY‐IT, continuous interpenetrating networks large fibrillar structures can be formed. Investigations charge transfer kinetics energy loss analyses unveiled that P(ClBTI2‐BTI) enables transport, reduced recombination, minimized non‐radiative within all‐polymer ternary blends, yielding remarkable PCE 19.35% (certified: 19.20%) through optimizing state‐of‐the‐art PM6:PY‐IT blend. structure–property–performance relationships provide valuable insights polymers, marking great progress in development high‐performance
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 20, 2025
Abstract Recently, through in‐depth investigations of ternary organic solar cells (OSCs), scientists have discovered that small molecules (SMs) with edge‐on orientation serving as the third component can boost transverse charge transport and consequently enhance device performance. Nevertheless, little research has been conducted on determining how to select an appropriate improve 3D transport. Herein, four SMs are designed by gradually increasing quantity alkyl thiophene π‐bridge adjust their crystallinity orientation. The resulting show similar but different crystalline degrees, due complex effects molecular steric hindrance extended conjugation. After introduction SMs, most devices exhibited a pronounced improvement in power conversion efficiencies (PCEs) than control binary counterparts. An elegant PCE 19.02% fill factor approaching 80% collected OSCs. A balanced bimodal mechanism is proposed effectively elucidated blend film, enabling charges bypass interfering domains thereby This provides guidance for development SM components form percolation paths facilitate subsequently performance devices.
Language: Английский
Citations
1
Small, Journal Year: 2024, Volume and Issue: 20(44)
Published: July 5, 2024
The morphology of the active layer is crucial for highly efficient organic solar cells (OSCs), which can be regulated by selecting a rational third component. In this work, crystalline nonfullerene acceptor BTP-eC9 selected as regulator in OSCs with PM6:BTP-BO-4Cl main system. addition prolong nucleation and crystallization progress donor molecules, thereby enhancing order molecular arrangement. Meanwhile, time earlier than that acceptors after introducing BTP-eC9, beneficial obtaining better vertical structural phase separation. exciton dissociation, charge transport, collection are promoted effectively optimized layer, improves short-circuit current density filling factor. After power conversion efficiencies (PCEs) ternary improved from 17.31% to 18.15%. PCE further 18.39% gold nanopyramid (Au NBPs) into hole transport improve photon utilization efficiency. This work indicates component regulate molecules.
Language: Английский
Citations
8
ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(8), P. 3282 - 3290
Published: June 26, 2024
Language: Английский
Citations
4