Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 7318 - 7329
Published: Jan. 1, 2024
An in-situ cross-linkable monomer is carefully developed into blend films to finely manipulate the molecular packing, crystallization and nanomorphology during film formation. As a result, stabilized PCEs of 19.84% for rigid device 18.32% flexible organic solar cells are achieved.
Language: Английский
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
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(15), P. 5719 - 5729
Published: Jan. 1, 2024
Efficient 3D dimeric acceptors linking two monomers with flexible alkyl linkers were developed. The resulting CH8-6-based OSCs achieved a high PCE of 19.2% and also exhibited excellent thermal stability mechanical flexibility.
Language: Английский
Citations
12
SusMat, Journal Year: 2024, Volume and Issue: 4(3)
Published: May 10, 2024
Abstract Side‐chain symmetry‐breaking strategy plays an important role in developing photovoltaic materials for high‐efficiency all‐small‐molecule organic solar cells (ASM OSCs). However, the power conversion efficiencies (PCEs) of ASM OSCs still lag behind their polymer‐based counterparts, which can be attributed to difficulties achieving favorable morphology. Herein, two asymmetric porphyrin‐based donors named DAPor‐DPP and DDPor‐DPP were synthesized, presenting stronger intermolecular interaction closer molecular stacking compared symmetric ZnP‐TEH. The DAPor‐DPP:6TIC blend afforded a morphology with nanoscale phase separation more ordered packing, thus efficient charge transportation suppressed recombination. Consequently, DAPor‐DPP:6TIC‐based device exhibited superior parameters, yielding champion PCE 16.62% higher than that DDPor‐DPP‐based (14.96%). To our knowledge, ranked as one highest values among binary OSC filed. This work provides prospective approach address challenge improving film further high efficiency via side‐chain strategy, exhibiting great potential constructing OSCs.
Language: Английский
Citations
11
EnergyChem, Journal Year: 2024, Volume and Issue: 6(4), P. 100129 - 100129
Published: June 15, 2024
Language: Английский
Citations
10
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(20), P. 7838 - 7849
Published: Jan. 1, 2024
An asymmetric molecule based on a quinoxaline core, which shows an appropriate adjustment of phase separation and intermixed domains, was achieved by modulating the crystallization kinetics.
Language: Английский
Citations
10
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(16), P. 5962 - 5971
Published: Jan. 1, 2024
A highly efficient and stable all-small-molecule system with excellent thickness tolerance recycling capability has been developed, by integrating a new giant molecule acceptor (Se-Giant) into the MPhS-C2:BTP-eC9 binary system.
Language: Английский
Citations
9
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 12, 2025
Abstract Compared to conventional organic solar cells (OSCs) with acidic PEDOT:PSS as the hole transport layer (HTL), inverted OSCs (i‐OSCs) zinc oxide (ZnO) electron (ETL) display significant advantages in terms of high stability. However, an obvious limitation i‐OSCs is that sol‐gel processed ZnO layers possess detrimental defects at interface, which hinders improvement its photovoltaic performance. To address this problem, a natural, and green dextran (Dex) used efficient interfacial passivator modify layer, thereby achieving enhanced device performance i‐OSCs. The introduction Dex efficiently suppresses recombination loss, resulting higher power conversion efficiencies (PCEs). Interestingly, Dex‐passivated exhibits broad applications ETL for different types i‐OSCs, including fullerene, non‐fullerene, all‐polymer OSCs, D18:Y6 system gives highest PCE 18.32%. This one values reported binary Moreover, application significantly improves stability, T 80 lifetimes based on PM6:Y6, D18:Y6, PM6:PY‐IT exceed 1500 h. These results imply excellent ZnO‐based high‐efficiency stable
Language: Английский
Citations
1
Organic Electronics, Journal Year: 2025, Volume and Issue: unknown, P. 107226 - 107226
Published: Feb. 1, 2025
Language: Английский
Citations
1
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: March 1, 2025
Understanding the thermal degradation mechanism of organic solar cells (OSCs) and developing strategies to enhance their stability are crucial before they can be commercialized. In this paper, we demonstrated that in a structure-inverted ITO/ZnO/PM6/L8-BO/TCTA/MoO3/Ag cell, thin 4,4′,4″-tris(carbazol-9-yl)-triphenylamine (TCTA) film between MoO3 PM6:L8-BO significantly suppress fast short circuit current (JSC) loss slow but continuous open voltage (VOC) fill factor (FF) decay upon 150 °C annealing. XPS TOF–SIMS results confirm annealing leads formation (MoO3)− at MoO3/PM6/L8-BO interface diffusion through photoactive layer. The diffused act as acceptor-type impurities p-doping layer, increasing charge recombination within layer reducing JSC. addition, accumulation cathode consequently decreases VOC FF. thermally induced interfacial model is supported by detailed drift-diffusion simulations. TCTA-interlayer minimizes diffusion, thereby stabilizing cell performance against TCTA-incorporating showed high PCE over 16% after high-temperature hot-press encapsulation, resulting excellent under 85 °C.
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 9, 2024
Abstract The ternary strategy has proven effective in enhancing the performance of organic solar cells (OSCs), yet identifying optimal third component remains a challenge due to lack theoretical frameworks for predicting its impact based on molecular structure. This study addresses this by proposing quantitative parameters derived from surface electrostatic potential (ESP) as criteria selecting components. asymmetric acceptor BTP‐OS, which exhibits lower total average ESP and larger polarization index relative host acceptor, is introduced into PM6:L8‐BO system. incorporation led weakened ESP‐induced intermolecular interactions reduce miscibility with donor polymer, resulting an optimized multi‐scale morphology blend. Consequently, device achieved efficiency 19.72%, one highest values PM6:L8‐BO‐based devices, enhanced exciton dissociation charge collection, energy disorder, minimized non‐radiative losses. Comparable improvements are also verified PM6:BTP‐eC9 D18:N3 systems, demonstrating broad applicability proposed approach. not only provides practical principle components but establishes broader framework optimizing OSCs, potentially advancing development more efficient OSCs across diverse material systems.
Language: Английский
Citations
8