Chinese Journal of Polymer Science, Год журнала: 2025, Номер unknown
Опубликована: Апрель 3, 2025
Язык: Английский
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(18)
Опубликована: Март 9, 2024
The hole-transporting material (HTM), poly (3,4-ethylene dioxythiophene) poly(styrene sulfonate) (PEDOT : PSS), is the most widely used in realization of high-efficiency organic solar cells (OSCs). However, stability PEDOT PSS-based OSCs quite poor, arising from its strong acidity and hygroscopicity. In addition, PSS has an absorption infrared region high highest occupied molecular orbital (HOMO) energy level, thus limiting enhancement short-circuit current density (J
Язык: Английский
Процитировано
47
Advanced Materials, Год журнала: 2024, Номер 36(28)
Опубликована: Май 20, 2024
Abstract In the fabrication of inverted perovskite solar cells (PSCs), wettability, adsorbability, and compactness self‐assembled monolayers (SAMs) on conductive substrates have critical impacts quality films defects at buried perovskite‐substrate interface, which control efficiency stability devices. Herein, three bisphosphonate‐anchored indolocarbazole (IDCz)‐derived SAMs, IDCz‐1, IDCz‐2, IDCz‐3, are designed synthesized by modulating position two nitrogen atoms IDCz unit to improve molecular dipole moments strengthen π–π interactions. Regulating work functions (WF) FTO electrodes through energy levels, band bends upwards with a small offset for ITO/IDCz‐3/perovskite, thereby promoting hole extraction blocking electrons. As result, PSC employing IDCz‐3 as hole‐collecting layer exhibits champion PCE 25.15%, is record multipodal SAMs‐based PSCs. Moreover, unencapsulated device can be stored least 1800 h little degradation in performance.
Язык: Английский
Процитировано
42
Advanced Materials, Год журнала: 2024, Номер 36(37)
Опубликована: Май 30, 2024
Stretchable organic photovoltaics (OPVs) have attracted significant attention as promising power sources for wearable electronic systems owing to their superior robustness under repetitive tensile strains and good compatibility. However, reconciling a high power-conversion efficiency reasonable flexibility is tremendous challenge. In addition, the development of stretchable OPVs must be accelerated satisfy increasing requirements niche markets mechanical robustness. OPV devices can classified either structurally or intrinsically stretchable. This work reviews recent advances in OPVs, including design mechanically robust transparent electrodes, photovoltaic materials, devices. Initially, an overview characteristics research progress areas provided. Subsequently, into flexible electrodes that directly affect performances summarized analyzed. Overall, this review aims provide in-depth understanding intrinsic properties highly efficient deformable active while also emphasizing advanced strategies simultaneously improving performance layer, material design, multi-component settings, structural optimization.
Язык: Английский
Процитировано
34
Advanced Materials, Год журнала: 2024, Номер 36(26)
Опубликована: Апрель 5, 2024
The ternary strategy, in which one guest component is introduced into host binary system, considered to be of the most effective ways realize high-efficiency organic solar cells (OSCs). To date, there no efficient method predict effectiveness components OSCs. Herein, three compositions (i.e., ANF-1, ANF-2 and ANF-3) with different electrostatic potential (ESP) are designed synthesized by modulating electron-withdrawing ability terminal groups through density functional theory simulations. effects introduction system (D18:N3) on photovoltaic properties investigated. theoretical experimental studies provide a key rule for acceptor OSCs improve open-circuit voltage, that is, larger ESP difference between acceptor, stronger intermolecular interactions higher miscibility, improves luminescent efficiency blend film electroluminescence quantum yield (EQE
Язык: Английский
Процитировано
27
National Science Review, Год журнала: 2025, Номер 12(3)
Опубликована: Янв. 21, 2025
Polymer solar cells (PSCs) leverage blend films from polymer donors and small-molecule acceptors (SMAs), offering promising opportunities for flexible power sources. However, the inherent rigidity crystalline nature of SMAs often embrittle donor in constructed bulk heterojunction structure. To address this challenge, we improved stretchability by designing synthesizing a tethered giant tetrameric acceptor (GTA) with increased molecular weight that promotes entanglement individual SMA units. The key to design is using tetraphenylmethane as linking core create three-dimensional high C2 symmetry structure, which successfully regulates their aggregation relaxation behavior. With GTA acceptor, its PM6 exhibit significantly stretchability, nearly 150% increase crack onset strain value compared PM6:Y6. Moreover, PSCs achieve an efficiency up 18.71% demonstrate outstanding photostability, maintaining >90% initial conversion after operating over 1000 hours. Our findings specifically aligning weights more closely those counterparts, can enhanced without compromising morphological stability or device efficiency.
Язык: Английский
Процитировано
6
Computational and Theoretical Chemistry, Год журнала: 2025, Номер 1246, С. 115102 - 115102
Опубликована: Фев. 3, 2025
Язык: Английский
Процитировано
4
Science China Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Янв. 7, 2025
Язык: Английский
Процитировано
3
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 9, 2025
Abstract Nanoimprint lithography (NIL) offers unprecedented control over active layer morphology in organic solar cells (OSCs), yet optimal processing conditions remain critical for maximizing device performance. Here, pressure‐dependent NIL fabrication of ordered interdigitated heterojunction structures is demonstrated D18/L8‐BO‐based OSCs, achieving exceptional performance through systematic pressure optimization. At an 50 bar, devices exhibit record‐setting metrics: 20.08% power conversion efficiency, 27.34 mA cm −2 short‐circuit current density, and 80.34% fill factor. The NIL‐patterned layers form well‐defined, solvent‐resistant nanopillar arrays (8.7–29 nm height) with enhanced light‐harvesting capabilities. Detailed characterization reveals improved molecular ordering both donor acceptor phases, while advanced spectroscopy demonstrates accelerated charge transfer dynamics reduced exciton dissociation diffusion times. This pressure‐optimized strategy simultaneously enhances the optical, morphological, electronic properties establishing a promising pathway toward commercial‐scale photovoltaic technology.
Язык: Английский
Процитировано
3
Chemical Society Reviews, Год журнала: 2024, Номер 53(14), С. 7426 - 7454
Опубликована: Янв. 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
Язык: Английский
Процитировано
15
EnergyChem, Год журнала: 2024, Номер 6(4), С. 100129 - 100129
Опубликована: Июнь 15, 2024
Язык: Английский
Процитировано
13