Metal halide perovskite solar cells (PSCs) are emerging as promising candidates for next-generation photovoltaics aimed at green energy production. However, during solution-processed film deposition, the distinct rheological behaviors of blade coating, compared to spin coating, result in less controlled crystallization, leading to inferior film quality and limiting the power conversion efficiency (PCE) of blade-coated photovoltaics. In this work, ethylene glycol (EG) is introduced as an inert co-solvent in perovskite precursor solutions to achieve high-quality perovskite films via blade coating. The high viscosity of EG facilitates the deposition of thick perovskite films ranging from 400 to 2000 nm, while its low vapor pressure effectively suppresses premature nucleation before vacuum flashing, leading to films with enhanced morphology. As a result, the blade-coated PSCs achieve an impressive champion PCE of 24.10% and retain 89% of their initial efficiency after 600 h of continuous operation.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/smtd.202500129 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
We report the cosolvency effect of formamidinium lead triiodide (FAPbI) in a mixture of γ-butyrolactone (GBL) and 2-methoxyethanol (2ME), a phenomenon where FAPbI shows higher solubility in the solvent blend than in either alone. We found that FAPbI exhibits 10× higher solubility in 30% 2ME in GBL than in 2ME alone and 40% higher solubility than in GBL alone at 90 °C. This enhanced solubility is attributed to the disruption of the hydrogen bonding network within 2ME, allowing its hydroxyl and ether groups to interact more freely with the solute.
View Article and Find Full Text PDFCopper-Catalyzed -Heteroannulation of [60]Fullerene with Aryl Sulfonamides and Paraformaldehyde: Synthesis and Functionalization of [60]Fullerene-Fused Imidazolidines.
Org Lett
March 2025
Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, and School of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, People's Republic of China.
The Cu(II)-catalyzed -heteroannulation reaction of [60]fullerene (C) with aryl sulfonamides and paraformaldehyde has been disclosed for the synthesis of diverse C-fused imidazolidines, of which one or both of the ArSO moieties could be removed selectively. Further transformations into the unexpected bicyclic 1,2,3,4-adduct and C-fused imidazolidinium iodide salt have also been demonstrated. A plausible reaction mechanism is proposed on the basis of control experiments.
View Article and Find Full Text PDFMetal Organic Chemical Vapor Deposition of Hybrid Perovskites.
J Am Chem Soc
March 2025
Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States.
Semiconductor devices often rely on high-purity materials and interfaces achieved through vapor- and vacuum-based fabrication methods, which can enable precise compositional control down to single atomic layers. Compared to groups IV and III-V semiconductors, hybrid perovskites (HPs) are an emergent class of semiconductor materials with remarkable solution processability and compositional variability that have facilitated rapid experimentation to achieve new properties and progress toward efficient devices, particularly for solar cells. Surprisingly, vapor deposition techniques for HPs are substantially less developed, despite the complementary benefits that have secured vapor methods as workhorse tools for semiconductor fabrication.
View Article and Find Full Text PDFResearch Advances in Ion Exchange of Halide Perovskites.
Nanomaterials (Basel)
February 2025
Institute of Polymer Optoelectronic Materials and Devices, Guangdong Basic Research Center of Excellence for Energy & Information Polymer Materials, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China.
In recent years, halide perovskite materials have been extensively studied by researchers due to their excellent optoelectronic characteristics. Unlike traditional semiconductors, halide perovskites possess unique ionic crystal structures, which makes it easier to perform facile composition engineering to tailor their physical and chemical properties. Ion exchange is a popular post-treatment strategy to achieve composition engineering in perovskites, and various ion exchange processes have been used to modify the structural and functional features of prefabricated perovskites to meet the requirements of desired applications.
View Article and Find Full Text PDFEnhancing the Morpho-Structural Stability of FAPbBr Solar Cells via 2D Nanoscale Layer Passivation of the Perovskite Interface: An In-Situ XRD Study.
Nanomaterials (Basel)
February 2025
Spec-X Lab, Istituto di Struttura della Materia Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, 00133 Roma, Italy.
Despite the huge progress achieved in the optimization of perovskite solar cell (PSC) performance, stability remains a limiting factor for technological commercialization. Here, a study on the photovoltaic, structural and morphological stability of semi-transparent formamidinium lead bromide-based PSCs is presented. This work focuses on the positive role of 2D nanoscale layer passivation, induced by perovskite surface treatment with a mixture of iso-Pentylammonium chloride (ISO) and neo-Pentylammonium chloride (NEO).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!