Journal of Electronic Materials, Journal Year: 2023, Volume and Issue: 52(12), P. 8132 - 8140
Published: Oct. 3, 2023
Language: Английский
Nano Select, Journal Year: 2024, Volume and Issue: 5(9)
Published: May 5, 2024
Abstract The primary aim of this work is to investigate the use iron di‐silicide (FeSi 2 ) as a photoactive layer in order achieve superior performance solar cell architecture—ITO/TiO /FeSi /CuSCN/Ni. optimum thickness absorber was found be 1000 nm, which gave optimal properties proposed cell—a short‐circuit current density ( J sc 51.41 mAm −2 , an open‐circuit voltage V oc 0.93 V, fill factor (FF) 77.99%, and power conversion efficiency (PCE) 37.17%. introduction ultrathin interfacial between electron transport (ETL), perovskite interface, hole (HTL) enhanced electrical output cell. increased 51.86 mAcm rose 0.97 while FF PCE 82.86% 41.84%, respectively. Accordingly, architecture promising can introduced into manufacturing workflow for commercial applications. Moreover, because its exceptional photon absorption capabilities, FeSi potentially excellent material fabrication. detailed findings study have therefore indicated that high‐performance ‐based achieved future.
Language: Английский
Citations
12
Frontiers in Physics, Journal Year: 2024, Volume and Issue: 12
Published: Feb. 26, 2024
Organic solar cells (OSCs) enjoy a huge market and public attention as an emerging renewable clean energy source due to their accessibility, sustainability, translucency, good flexibility, non-toxicity, low preparation cost. However, the choice of acceptor material is now pivotal factor restricting development OSCs. To continuously improve stability increase power conversion efficiency (PCE) for better performance, high-performance materials are important part enabling From fullerenes derivatives non-fullerenes, we sum up latest research progress on OSCs then introduce synthesis methods non-fullerenes. The strategies enhance performance organic wide range applications non-fullerene acceptors (NFAs) different also discussed. In addition, challenges faced by in improving prospects future revealed, providing new ideas designing next generation
Language: Английский
Citations
7
Molecules, Journal Year: 2023, Volume and Issue: 28(7), P. 3171 - 3171
Published: April 2, 2023
Organic solar cells have obtained a prodigious amount of attention in photovoltaic research due to their unique features light weight, low cost, eco-friendliness, and semitransparency. A rising trend this field is the development all-small-molecules organic (ASM-OSCs) merits excellent batch-to-batch reproducibility, well-defined structures, simple purification. Among numerous (OPV) materials, benzodithiophene (BDT)-based small molecules come fore achieving outstanding power conversion efficiency (PCE) breaking 17% barrier single-junction OPV devices, indicating significant potential class materials commercial applications. This review specially focuses on up-to-date information about improvements BDT-based ASM-OSCs since 2011 provides an outlook most challenges that remain field. We believe there will be more exciting devices developed near future.
Language: Английский
Citations
11
The Journal of Chemical Physics, Journal Year: 2025, Volume and Issue: 162(1)
Published: Jan. 2, 2025
We developed a technique allowing the direct observation of photoinduced charge-transfer states (CTSs)-the weakly coupled electron-hole pairs preceding completely separated charges in organic photovoltaic (OPV) blends. Quadrature detection electron spin echo (ESE) signal enables an out-of-phase ESE CTS. The Electron-Electron Double Resonance (ELDOR) allows measuring distance distributions within CTS and its temporal evolution microsecond range. was applied to OPV bulk heterojunction blends different donor polymers, including benchmark polymer P3HT high-performance PCDTBT, with fullerene PC61BM acceptor. corresponding were obtained using Tikhonov regularization. It found that not only dipolar interaction but also exchange contributes formation ELDOR signal. By varying delay time after photoexcitation, we observed CTSs at stages charge separation. initial distribution distances for correlates their photoelectric conversion efficiency, shorter average thermalization less efficient regiorandom P3HT. Spin-selective recombination unambiguously demonstrated blend regioregular PC61BM. produces characteristic features trace small "dipolar" times. These data allow us estimate rate certain between hole proposed method can be used probe variety active layer materials.
Language: Английский
Citations
0
Journal of Composites Science, Journal Year: 2025, Volume and Issue: 9(2), P. 51 - 51
Published: Jan. 21, 2025
Photoinduced charge separation at donor–acceptor composites (active layer material of organic solar cells) is an important step photoelectric energy conversion. It results in the formation interfacial charge-transfer state (CTS), which a Coulombically bound electron-hole pair. We developed mathematical procedure direct quantification distance on basis time-domain pulse electron paramagnetic resonance data, obtained spin echo (ESE) experiment. For ensemble CTSs characterized by distribution distances, this derives average without numerical simulation experimental superposition oscillating functions, corresponding to with certain distance. This was tested model distributions, yielding very accurate results. The data for highly efficient photovoltaic composite PM6/Y6 were also analyzed; within CTS and its dependence temperature determined. can be useful tracing small changes structure during optimization morphology, tightly related efficiency composite.
Language: Английский
Citations
0
Journal of Industrial and Engineering Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 1, 2025
Language: Английский
Citations
0
Molecular Crystals and Liquid Crystals, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 9
Published: March 26, 2025
Language: Английский
Citations
0
Surfaces, Journal Year: 2025, Volume and Issue: 8(2), P. 30 - 30
Published: May 1, 2025
In this study, we detailed the fabrication and characterization of photovoltaic structures based on PTB7:ICBA (1:1, wt.%) bulk-heterojunction optical glass substrates by spin-coating. Some samples were deposited a flat substrate, others placed patterned substrate obtained nano-imprinting lithography; induced effects analyzed. We demonstrated that using enhanced maximum output power, primarily because short-circuit current density increased. This can be considered direct consequence reduced reflection improved absorption. The topological parameters evaluated atomic force microscopy, namely, root mean square, Skewness, Kurtosis, had small values around 2 nm 1 nm, respectively. proves mixture conductive polymer fullerene derivative creates thin film network with high flatness degree. discussed in paper fabricated characterized air; admit results are encouraging, but further optimization is needed.
Language: Английский
Citations
0
Polymers for Advanced Technologies, Journal Year: 2025, Volume and Issue: 36(5)
Published: May 1, 2025
ABSTRACT In photovoltaic polymer synthesis research, it is routine to adapt chemical reactions while respecting the stoichiometric proportions of reagents. Generally, researchers reduce amounts reagents save materials or adjust necessary quantity according need avoid waste, as these undergo changes and alterations in their properties over time, compromising performance devices. P3HT considered a reference field solar cells. This study demonstrated that downscaling significantly influences optoelectronic device performance. To further investigate this effect, devices were fabricated on large‐area substrates with varying pixel sizes, allowing for comprehensive assessment impact laboratory‐scale reductions potential implications market applications. The scale‐down 50% reaction system decreases device. standard performed duplicate also efficiency similar method. Synthesis using close 3.5 g monomer resulted better properties, molar mass, efficiencies up 3.04% ± 0.11% 0.16 cm 2 2.23% 0.14% large area 1 .
Language: Английский
Citations
0
Polymers, Journal Year: 2024, Volume and Issue: 16(12), P. 1736 - 1736
Published: June 19, 2024
In this study, we report an easy approach for the production of aqueous dispersions C60 fullerene with good stability. Maleic acid copolymers, poly(styrene-alt-maleic acid) (SM), poly(N-vinyl-2-pyrrolidone-alt-maleic (VM) and poly(ethylene-alt-maleic (EM) were used to stabilize molecules in environment by forming non-covalent complexes. Polymer conjugates prepared mixing a solution N-methylpyrrolidone (NMP) copolymer, followed exhaustive dialysis against water. The molar ratios maleic residues copolymer 5/1 SM VM 10/1 EM. volume ratio NMP water was 1:1.2–1.6. Water-soluble complexes (composites) dried lyophilically retained solubility but practically insoluble non-polar solvents. optical physical properties preparations characterized UV-Vis spectroscopy, FTIR, DLS, TGA XPS. average diameter composites 120–200 nm, ξ-potential ranged from −16 −20 mV. bactericidal obtained nanostructures studied. Toxic reagents time-consuming procedures not preparation water-soluble nanocomposites stabilized proposed copolymers.
Language: Английский
Citations
3