Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 164193 - 164193
Опубликована: Май 1, 2025
Язык: Английский
ACS Energy Letters, Год журнала: 2025, Номер unknown, С. 2045 - 2051
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
3
Angewandte Chemie International Edition, Год журнала: 2025, Номер unknown
Опубликована: Март 6, 2025
Large dipole moment additives have strong interactions with the host materials, which can optimize morphology and improve photovoltaic performance of organic solar cells (OSCs). However, these are difficult to remove due their intermolecular interactions, may impair stability. Developing volatile large moments is challenging. Herein, we first report imide that could effectively OSCs through modification. Three N-(o-chlorophenyl)phthalimide (oClPA), N-(m-chlorophenyl)phthalimide (mClPA), N-(p-chlorophenyl)phthalimide (pClPA) were screened investigate effort positional isomerization on molecular configuration interaction. These (ClPAs) larger (2.0664 Debye for oClPA, 4.2361 mClPA, 4.7896 pClPA) compared reported solid additives. In contrast traditional simultaneous nucleation crystal growth, ClPAs induce acceptor nucleate then grow, contributes forming high-quality domains better crystallinity. To our knowledge, this unique film formation kinetics was first. The power conversion efficiency (PCE) based PM6:BTP-eC9 treated pClPA improved from 16.13 % 18.58 %. Additive also performed well in PM6:L8-BO, PM6:Y6, D18:L8-BO systems, a high PCE 19.04 achieved. Our results indicate using unit construct simple effective strategy, halogen atom has effect performance.
Язык: Английский
Процитировано
1
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Май 15, 2025
Abstract Modulating the fibril size of non‐fullerene acceptors has emerged as a promising approach to improve exciton dissociation and charge transport in organic solar cells. While processing solvent additives can promote acceptor aggregation, achieving controlled fibrilization remains challenging due complex donor–acceptor interactions bulk heterojunctions. Herein, solubility‐driven strategy is proposed evaluate their impact on photovoltaic performance bilayer cells, circumventing complexities mixtures. By tuning mass ratio, solubility dichloromethane modulated, leading fiber formation at different length scales during film deposition. Specifically, incorporating BTP‐eC9 into L8‐BO results larger sizes with increasing content, enhancing molecular packing thin‐film crystallinity. These structural improvements boost electron mobility extraction efficiency, yielding power conversion efficiency approaching 20% devices PM6. This effective across various combinations. findings underscore critical role fine‐tuning morphology, offering pathway for advancing solution‐processed
Язык: Английский
Процитировано
0
Solar RRL, Год журнала: 2025, Номер unknown
Опубликована: Фев. 5, 2025
The morphology of active layer the organic solar cells (OSCs) tends to transition toward its lowest energy conformation under thermal stress, significantly limiting stability OSCs. In this study, ethyl cellulose (EC) is utilized as an additive in typical PM6:Y6 and other systems. Due strong interaction between hydroxyl groups EC heteroatoms semiconductors, their bulk heterojunction nanomorphology locked, thereby enhancing device stability. Under stress at 65 °C for 1,000 h, incorporating demonstrates excellent nearly without performance loss. Furthermore, compared control device, exhibits improved a range more stringent aging conditions. Additionally, shows broad applicability various systems, effectively This work offers promising approach developing stable structures
Язык: Английский
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Март 12, 2025
Green-solvent-processed all-polymer solar cells (AP-SCs) are regarded as an excellent candidate for renewable energy due to their better stability and eco-friendly features. Two polymers, PYF-U PYF-BO, have been designed by introducing a Y-series derivative with difluoro-substituted dicyanindenone units difluorobenzotriazole the first second electron-deficient (A) units, respectively. The introduction of two additional F atoms on leads more coplanar backbone because noncovalent interactions. Compared polymer undecyl chains thiophene, PYF-BO 2-butyloctyl exhibits stronger intermolecular aggregation during film-forming process, dominant face-on molecular packing, higher crystallinity in films. Therefore, PM6:PYF-BO AP-SC achieves efficiency 15.38%, outperforming that PM6:PYF-U device (14.27%). Moreover, former longer T80 lifetime (1789 h) than latter (826 under thermal aging at 65 °C packing morphology. Our research demonstrates combining interactions enhance coplanarity polymeric side-chain engineering optimize blend-film morphology is one efficient strategies developing high-performance acceptors.
Язык: Английский
Процитировано
0
Angewandte Chemie, Год журнала: 2025, Номер unknown
Опубликована: Март 6, 2025
Abstract Large dipole moment additives have strong interactions with the host materials, which can optimize morphology and improve photovoltaic performance of organic solar cells (OSCs). However, these are difficult to remove due their intermolecular interactions, may impair stability. Developing volatile large moments is challenging. Herein, we first report imide that could effectively OSCs through modification. Three N ‐( o ‐chlorophenyl)phthalimide ( ClPA), m p ClPA) were screened investigate effort positional isomerization on molecular configuration interaction. These (ClPAs) larger (2.0664 Debye for ClPA, 4.2361 4.7896 compared reported solid additives. In contrast traditional simultaneous nucleation crystal growth, ClPAs induce acceptor nucleate then grow, contributes forming high‐quality domains better crystallinity. To our knowledge, this unique film formation kinetics was first. The power conversion efficiency (PCE) based PM6:BTP‐eC9 treated ClPA improved from 16.13 % 18.58 %. Additive also performed well in PM6:L8‐BO, PM6:Y6, D18:L8‐BO systems, a high PCE 19.04 achieved. Our results indicate using unit construct simple effective strategy, halogen atom has effect performance.
Язык: Английский
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Март 17, 2025
The rapid advancement of solar photovoltaic technology underscores the growing significance organic cells (OSCs) in renewable energy solutions. A critical challenge optimizing OSC performance lies achieving precise control over active layer nanomorphology. In this study, we innovatively introduce a high-boiling-point liquid additive, 1,2,4-trichlorobenzene (1,2,4-TCB), as superior alternative to conventional additive 1,8-diiodooctane (DIO). Compared DIO, 1,2,4-TCB significantly enhances molecular ordering acceptors and improves miscibility between donor (D18) acceptor (Y6) materials, leading notable increase power conversion efficiency (PCE) from 17.56% 18.80%. It has been revealed that promotes packing, particularly for molecules grazing incidence wide-angle X-ray scattering. contact angle measurements further demonstrate improved donor–acceptor miscibility, resulting an optimized bicontinuous interpenetrating network morphology. This morphology effectively exciton separation, facilitates charge transport, minimizes recombination losses. addition improvements, 1,2,4-TCB-based devices exhibit exceptional photostability (T80 = 981 h) storage stability 2708 h), outperforming their DIO-based counterparts. These findings not only establish potential additives like boosting but also provide promising strategy advance commercial viability technology.
Язык: Английский
Процитировано
0
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 3, 2025
A volatile solid additive strategy, which can effectively optimize the morphology of photoactive layer with an ideal domain size and purity, has emerged as a promising approach to improve photovoltaic performance organic solar cells (OSCs). However, precise role additives in modulating charge exciton dynamics, especially recombination process, remains not fully understand. In this study, additive, 1,4-diiodo-2,5-dimethoxybenzene (DIDOB), is developed OSCs conduct comprehensive investigation into its effect on process. As result, PM6:L8-BO-X-based binary OSC processed DIDOB achieves excellent efficiency 19.75% remarkable fill factor 81.9%, owing optimal fiber network morphology, tighter ordered molecular packing, well suppression both bimolecular geminate recombination. Notably, exhibits broad universality other non-fullerene acceptor-based OSCs. Impressively, D18:PM6:L8-BO-based ternary device yielded 20.11% (certified 20.03%). This work highlights process within active provides insights for further development
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162657 - 162657
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 17, 2025
Abstract It is necessary to employ high‐boiling solvents for the fabrication of large‐area organic solar cells (OSCs). However, controlling morphology achieve suitable phase separation high efficiency challenging when are used. In this study, HD‐1, a small molecular donor introduced, into PM6:BO‐4Cl blend as morphology‐modulating agent. This addition optimizes and enhances charge transport in ternary processed chlorobenzene (CB) solvent. The optimized active layer demonstrates improved dissociation capabilities while effectively suppressing recombination. Small‐area OSCs from CB solution achieves an power conversion (PCE), increasing 18.84% 19.42%. Furthermore, device demonstrated good tolerance thickness, with 300‐nm‐thick film achieving PCE exceeding 17%. Notably, blade‐coated module area 13.5 cm 2 , fabricated air using CB, 16.48%, showing excellent application potential. study presents straightforward effective approach optimizing enhancing fabricate solvent, highlighting its potential large‐scale production practical applications.
Язык: Английский
Процитировано
0