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Molecular packing and film morphology control in organic electrochemical transistors …
Molecular packing and film morphology control in organic electrochemical transistors Min Zhu, Peiyun Li, Jiu-Long Li and Ting Lei * Key Laboratory of Polymer Chemistry and Physics (MOE), School of Materials Science and …
All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies …
All-small-molecule organic solar cells with over 14% ...
Improving the photovoltaic performance of perovskite solar cells …
In an all-solid-state perovskite solar cell, methylammonium lead halide film is in charge of generating photo-excited electrons, thus its quality can directly influence the final photovoltaic ...
Modulating Crystal Packing, Film Morphology, and Photovoltaic …
Here, we report a series of acceptor-donor-acceptor (A-D-A) architecture isomeric acceptors (SeCT-IC, CSeT-IC, and CTSe-IC), which have an identical electron-deficient terminal A-group and three different central D-cores with the selenophene at the innermost, relatively outer, and outermost positions of the central core, respectively.
Furan-based liquid-crystalline small-molecule donor guest improving the photovoltaic performance of organic solar cells with amorphous packing ...
Introducing liquid-crystalline small-molecule donors (SMDs) into binary systems based on the strong intermolecular interactions of SMDs is a facile and effective strategy to tune the active layer morphology and improve the performance of organic solar cells (OSCs). Contrary to conventional understanding, this research proposes a new …
Morphology of organic photovoltaic non-fullerene acceptors investigated by grazing incidence …
Bulk heterojunction morphology in terms of molecular packing and phase separation is one of the most critical factors determining the device performance of organic photovoltaic devices. The emergence of organic non-fullerene acceptors not only boosts the power conversion efficiency but also brings new challenges and opportunities to the …
Modulating Crystal Packing, Film Morphology, and Photovoltaic …
Rational modulation of the central fused core in combination with the conjugated skeleton isomeric method and the atom regioisomers method provides an effective way to understand the structure-crystallinity-photovoltaic property relationship of selenophene-based regioISomers. Here, we report a series of acceptor-donor-acceptor …
Modulating Crystal Packing, Film Morphology, and Photovoltaic …
Here, we report a series of acceptor–donor–acceptor (A–D–A) architecture isomeric acceptors (SeCT-IC, CSeT-IC, and CTSe-IC), which have an identical electron-deficient terminal A-group and three different central D-cores with the selenophene at the innermost, relatively outer, and outermost positions of the central core, …
Exploring the Impact of Morphology on the Properties of …
Nanoparticle morphology (size, shape, and composition) and surface chemistry are the determining factors underpinning the efficacy of such materials in therapeutic applications. The size, shape, and surface chemistry of a nanoparticle can strongly influence key properties such as interactions with diverse biological fluids and …
Enhanced photovoltaic performance of PM6/Y6-based organic solar cells …
Considering rare researches on wide-bandgap nonfullerene acceptors for ternary organic solar cells (OSCs), we reported a small molecule acceptor ITCN as the second acceptor for constructing PM6/Y6/ITCN ternary devices with better photovoltaic performance in this work. ITCN exhibits a large bandgap of 2.19 eV and a higher LUMO …
Complex multilength-scale morphology in organic photovoltaics
The coupling and competition of the crystallization and demixing of donor and acceptor materials leads to the complex thin-film morphology in organic solar cells. …
Optimized bicontinuous interpenetrating network morphology formed by gradual chlorination to boost photovoltaic …
Bicontinuous interpenetrating network morphology formed spontaneously in a bulk-heterojunction (BHJ) photoactive layer is highly desirable for organic solar cells (OSCs). Herein, we report the synthesis of a series …
Uncovering the out-of-plane nanomorphology of organic photovoltaic bulk heterojunction by …
Uncovering the out-of-plane nanomorphology of organic ...
Molecular packing of non-fullerene acceptors for organic solar cells: Distinctive local morphology …
1 Molecular packing of non-fullerene acceptors for organic solar cells: Distinctive local morphology in Y6 versus ITIC derivatives Grit Kupgan, Xian-Kai Chen, and Jean-Luc Brédas* Department of Chemistry and Biochemistry The University of Arizona Tucson
Complex multilength-scale morphology in organic …
Control over the morphology in bulk heterojunction (BHJ) organic photovoltaics (OPVs) remains a key issue in improving the power conversion efficiency (PCE), despite the performance advances in recent …
From Fullerene–Polymer to All-Polymer Solar Cells: …
ConspectusAll-polymer solar cells (all-PSCs), consisting of conjugated polymers as both electron donor (PD) and acceptor (PA), have recently attracted great attention. Remarkable progress has been …
Enhanced photovoltaic performance of A–D–A''–D–A type non …
Featuring simplified synthesis and flexible chemical alteration, non-fused ring electron acceptors (NFREAs) are the ideal candidates for constructing low-cost organic solar cells (OSCs). Herein, we report three A–D–A''–D–A type NFREAs, namely ffBTz-BO, ffBTz-EH, and ffBTz-C4, where difluorinated benzotriazole (ffBTz) with different side chain …
Phys. Rev. B 109, 205201 (2024)
It has long been argued that the performance of organic bulk-heterojunction solar cells critically depends on the morphology of the active layer, a mixture of donor …
Organic solar cells and their morphology control
In, Organic Solar Cells sunlight''s direct transformation into electrical energy has many benefits including reasonable rate, semitransparency, light in weight, roll-to-roll huge area fabrication, and versatility. Morphological control is one of the foundations of the current ...
Molecular packing of non-fullerene acceptors for organic solar cells: Distinctive local morphology …
Molecular packing of non-fullerene acceptors for organic solar cells: Distinctive local morphology in Y6 vs. ITIC derivatives G. Kupgan, X.K. Chen, J.L. Bredas * Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ, 85721-0088, USA ...
Energies | Free Full-Text | The Advancements and Challenges in Organic Photovoltaic Cells…
The global interest in environmental issues and sustainable energy has propelled extensive research in photovoltaic (PV) technologies. Brazil has emerged as one of the top ten solar energy producers and flexible PV suppliers in the world. In this context, organic photovoltaic cells (OPVs) have garnered attention due to their flexibility and ability to …
Quantitative Relationships between Film Morphology, Charge …
photoactive bulk heterojunction (BHJ) film morphology, charge photogeneration, and recombination dynamics dictate solar cell performance have stimulated many studies of …
Bandgap-universal passivation enables stable perovskite solar cells …
Surface passivation by vapor-deposited aminosilane molecules can reduce the voltage photodeficit of perovskite solar cells to near the theoretical limit and also improve stability. Lin et al. found that a primary- and secondary-amine based silane, [3-(2-aminoethylamino)propyl]trimethoxysilane, improved the photoluminescent quantum yield …
Morphology-photovoltaic property correlation in perovskite solar cells…
The coverage, pore-filling, and morphology of the deposited perovskite are found to be critical in photovoltaic performance of the mesoporous TiO2 based perovskite solar cells. Perovskite CH3NH3PbI3 light absorber is deposited on the mesoporous TiO2 layer via one-step and two-step coating methods and their …
Molecular packing of non-fullerene acceptors for organic solar cells: Distinctive local morphology …
Molecular packing of non-fullerene acceptors for organic solar cells: Distinctive local morphology in Y6 vs. ITIC derivatives G. Kupgan, X.K. Chen, J.L. Bredas * Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ, 85721-0088, USA
Modulating Crystal Packing, Film Morphology, and Photovoltaic …
/ Modulating Crystal Packing, Film Morphology, and Photovoltaic Performance of Selenophene-Containing Acceptors through a Combination of Skeleton Isomeric and Regioisomeric Strategies. : ACS applied materials & interfaces. 2021 ; 13, 42.
Molecular Packing and Electronic Processes in Amorphous-like …
The studies correlate high PV performance with two-phase morphology that consists of pure polymer and pure fullerene domains with an optimal domain size …
Progress of organic photovoltaics towards 20% efficiency
This article introduces the crucial role of nitrogen K-edge resonant soft X-ray scattering technique in morphology analysis for non-fullerene-based organic solar …
Molecular Packing and Electronic Processes in Amorphous-like Polymer Bulk Heterojunction Solar Cells with Fullerene …
The interpenetrating morphology formed by the electron donor and acceptor materials is critical for the performance of polymer:fullerene bulk heterojunction (BHJ) photovoltaic (PV) cells. In this ...
Charge Generation Dynamics in Efficient All-Polymer Solar Cells: Influence of Polymer Packing and Morphology
All-polymer solar cells exhibit rapid progress in power conversion efficiency (PCE) from 2 to 7.7% over the past few years. While this improvement is primarily attributed to efficient charge transport and balanced mobility between the carriers, not much is known about the charge generation dynamics in these systems. Here we measured exciton relaxation and …
Organic solar cell with new film morphology and 16.88% efficiency
They presented the cell''s morphology in Efficient Organic Solar Cell with 16.88% Efficiency Enabled by Refined Acceptor Crystallization and Morphology with Improved Charge Transfer and Transport ...