Achieving high-performance in all-small-molecule organic solar cells (ASM-OSCs) significantly relies on precise nanoscale phase separation through domain size manipulation in the active layer. Nonetheless, for ASM-OSC systems, forging a clear connection between the tuning of domain size and the intricacies of phase separation proves to be a
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Morphological control over the bulk heterojunction (BHJ) microstructure of a high-efficiency small molecule photovoltaic system composed of a quinquethiophene based molecule (DRCN5T) as electron donor and [6,6]-phenyl-C71-butyric acid methyl ester (PC 70 BM) as electron acceptor is demonstrated using three different post-processing strategies, including
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A highly crystalline donor enables over 17% efficiency for small-molecule organic solar cell Tao Zhang,a, b Cunbin An, *a Pengqing Bi, a Kaihu Xian,c Zhihao Chen,a Jingwen Wang, a Ye Xu, a Jiangbo Dai,a, b Lijiao Ma,a Guanlin Wang,a, b Xiaotao Hao, d Long Ye,c Shaoqing Zhang a and Jianhui Hou*a, b aState Key Laboratory ofPolymer Physics and Chemistry, Beijing National for
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This paper focuses on nano-morphology-controlled small-molecule organic solar cells without solvent treatment for high power-conversion efficiencies (PCEs). The maximum high PCE reaches up to 7.22% with a bulk
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Solution processed organic solar cells (OSCs) composed of all small molecules (ASM) are promising for production on an industrial scale owing to the properties of small molecules, such as well-defined chemical structures, high purity of materials, and outstanding repeatability from batch to batch synthesis.
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All-small-molecule organic solar cells (all-SMOSCs) have attracted tremendous attention on account of their special merits of easy purification, well-defined molecular
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The field of organic solar cells has seen rapid developments after the report of a high-efficiency (15.7%) small molecule acceptor (SMA) named Y6. In this paper, we design and synthesize a family of SMAs with an aromatic backbone
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The development of novel small-molecule donors is crucial for achieving highly efficient small-molecule organic solar cells (SM-OSCs). In this study, two small-molecule donors, B3TR and B2, were designed and synthesized. In comparison with B3TR, the skeleton of B2 includes an additional benzo[1,2-b:4,5-b′]di
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Solution processed organic solar cells (OSCs) composed of all small molecules (ASM) are promising for production on an industrial scale owing to the properties of small molecules, such as well-defined chemical structures,
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This work demonstrates an effective strategy to optimize the active layer for sequential morphology evolution and vertical distribution. Combining layer-by-layer deposition and solid additive methoxy-substituted
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In the last two years, polymer solar cells (PSCs) developed quickly with n-type organic semiconductor (n-OSs) as acceptor. In contrast, the research progress of nonfullerene organic solar cells (OSCs) with organic small molecule as donor and the n-OS as acceptor lags behind. Here, we synthesized a D–A structured medium bandgap organic small molecule H11
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Precise control over molecular crystallization and vertical phase distribution of photovoltaic bulk-heterojunction (BHJ) films is crucial for enhancing their optoelectronic properties toward high-performance polymer solar cells (PSCs). Herein, a kinetics-controlling strategy is implemented in the PM6:L8-BO b
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Fluorination is an efficient strategy for improving organic solar cells (OSCs) efficiency, particularly by fluorinating the end group of emerging nonfullerene acceptors. Here, the fluorination effect was investigated by using small molecule donors with fluorine-free ( SBz ) and fluorinated ( SBz-F ) end groups, paired with the emerging nonfullerene acceptor Y6.
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1 Introduction. Organic solar cells (OSCs) are gaining attention for their lightweight, solution processability, and flexibility. [] The power conversion efficiency (PCE) of the OSCs has been significantly enhanced through the development of various small molecule acceptors (SMAs), characterized by their superior light absorption capabilities and electron
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Tetrahydrofuran-fabricated all-small-molecule organic solar cells based on BM-ClEH:BO-4Cl achieved high power conversion efficiencies of 15.0% in binary device and 16.1%
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Achieving high-performance in all-small-molecule organic solar cells (ASM-OSCs) significantly relies on precise nanoscale phase separation through domain size manipulation in the active layer.
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Baran, D. et al. Reducing the efficiency–stability–cost gap of organic photovoltaics with highly efficient and stable small molecule acceptor ternary solar cells. Nat. Mater. 16, 363–369
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Small-molecular organic solar cells usually exhibited unsatisfactory device stability, which might originate from their molecular diffusion behaviors. Herein, based on the all-small-molecule system HD-1:BTP-eC9, we reported a dimerized acceptor DC9, and its
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All-Small-Molecule Ternary Organic Solar Cell with 16.35% Efficiency Enabled by Chlorinated Terminal Units. Fernando García Guijarro, In the last few years, there have been notable developments in organic solar cells using both small molecule donor and acceptor. It has been noted that adding halogens to the end groups of small molecules
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Chemically modifiable small-molecule hole transport materials (HTMs) hold promise for achieving efficient and scalable perovskite solar cells (PSCs). Compared to emerging self-assembled monolayers, small-molecule HTMs are more reliable in terms of large-area deposition and long-term operational stab
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Organic solar cells are famous for their cheap solution processing. Their industrialization needs fast designing of efficient materials. For this purpose, testing of large number of materials is necessary. Machine learning is a better option due to cheaper prediction of power conversion efficiencies. In the present work, machine learning was used to predict
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In the last few years, there have been notable developments in organic solar cells using both small molecule donor and acceptor. It has been noted that adding halogens to
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All-small-molecule organic solar cells (SM-OSCs) with a high power conversion efficiency (PCE) of 15.88% (certified 15.5%) are demonstrated by employing 4TIC as the
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Emerging wearable devices would benefit from integrating ductile photovoltaic light-harvesting power sources. In this work, we report a small-molecule acceptor (SMA), also known as a non–fullerene acceptor (NFA), designed for stretchable organic solar cell (s-OSC) blends with large mechanical compliance and performance.Blends of the organosilane-functionalized SMA
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cells (OSCs).1–3 Although the development of Y-series small-molecule acceptors (SMAs) has triggered a rapid progress in the PCEs of OSCs, 4–11 the performance of OSCs is still inferior to that of competing photovoltaic technologies (i.e., perov-
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Request PDF | On Aug 1, 2016, Jie Min and others published High Efficiency and Stability Small Molecule Solar Cells Developed by Bulk Microstructure Fine-tuning | Find, read and cite all the
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Nature Communications - Small molecule organic solar cells (OSCs) represent an alternative route for OSCs, but their efficiencies are lower
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To achieve high efficiency, an amount of small molecule/polymer donor materials have been developed, the power conversion efficiency Modulating molecular orientation enables efficient nonfullerene small-molecule
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A two-dimensional conjugated small molecule (SMPV1) was designed and synthesized for high performance solution-processed organic solar cells. This study explores the photovoltaic properties of this molecule as a donor, with a fullerene derivative as an acceptor, using solution processing in single junction and double junction tandem solar cells.
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Solution-processed small-molecule solar cells with almost 100% internal quantum efficiency and a power conversion efficiency of 9% are reported. The cells make use
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All-small-molecule organic solar cells (all-SMOSCs) exhibit tremendous potential for commercialization thanks to their unique advantages, including a well-defined molecular structure, ease of synthesis, and batch-to
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The power conversion efficiencies (PCEs) of small-molecule acceptor (SMA)-based organic solar cells (OSCs) have increased remarkably, but their long-term stability should be improved. In this study, we develop a dimerized SMA (DYBO) for efficient (PCE > 18%) and stable OSCs (i.e., t80% lifetime > 6,000 h under 1-sun illumination). The excellent stability of
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Progress and future potential of all-small-molecule organic solar cells based on the benzodithiophene donor material. Molecules, 28 (2023), p. 3171. Crossref View in Scopus Google Scholar High performance thick-film nonfullerene organic solar cells with efficiency over 10% and active layer thickness of 600 nm. Adv. Energy Mater., 9 (2019
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Currently, very few dicyano and tetracyanoquinodimethane (TCNQ) based molecules are utilized as active layers, sandwiched between the electron and hole transport layer in organic solar cell (OSC) devices.
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All-small-molecule organic solar cells (SM-OSCs) with a high power conversion efficiency (PCE) of 15.88% (certified 15.5%) are demonstrated by employing 4TIC as the additional non-fullerene acceptor (NFA) to construct ternary SM-OSCs. 4TIC is a highly crystalline acceptor with a similar molecular structure as 6TIC, the host NFA in the binary blend.
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Organic solar cells (OSCs) have attracted widespread attention as a potentially low-cost technology for solar power generation due to their advantages, such as lightweight, high throughput, semitransparency, and flexibility. 1, 2, 3 Currently, the power conversion efficiency (PCE) of polymer-based OSCs, which are based on polymer donors and small-molecule
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A novel wide-bandgap small molecule donor for high efficiency all-small-molecule organic solar cells with small non-radiative energy losses Energy Environ. Sci., 13 ( 2020 ), pp. 1309 - 1317
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These values are the highest reported for solar cells using small-molecule donors. Solar cells processed with 0.25% v/v DIO exhibit a significant increase in photocurrent generation in the range
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In this study, we utilised a one-dimensional solar cell capacitance simulator (SCAPS-1D) to analyze the performance of an all-small molecule OSC structure. The structure of an MPc
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Recent work has emphasized the pivotal role of halogen substituents in the development of polymer donors or small-molecule (SM) acceptors for efficient bulk-heterojunction (BHJ) solar cells. However, the application of –F or –Cl substitutions in the design of SM donors is yet to receive similar consideration Journal of Materials Chemistry A HOT Papers
Learn MoreSmall molecule organic solar cells (OSCs) represent an alternative route for OSCs, but their efficiencies are lower than polymer-molecule blend based counterparts. Here Zhou et al. show high performance devices with 14% efficiency and feature hierarchical morphologies.
Energy 3, 952–959 (2018). Zhou, R. et al. All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies. Nat. Commun. 10, 5393 (2019). Xu, T. et al. 15.8% efficiency binary all-small-molecule organic solar cells enabled by a selenophene substituted sematic liquid crystalline donor. Energy Environ.
Solution-processed small-molecule solar cells with almost 100% internal quantum efficiency and a power conversion efficiency of 9% are reported. The cells make use of a donor molecule called DRCN7T and use PC71BM as an acceptor.
All-small-molecule organic solar cells (all-SMOSCs) have attracted tremendous attention on account of their special merits of easy purification, well-defined molecular structures, and better molecular repeatability compared with polymer solar cells (PSCs).
The high efficiency all-small-molecule organic solar cells (OSCs) normally require optimized morphology in their bulk heterojunction active layers. Herein, a small-molecule donor is designed and synthesized, and single-crystal structural analyses reveal its explicit molecular planarity and compact intermolecular packing.
All-small-molecule organic solar cells with good batch-to-batch reproducibility combined with non-halogen solvent processing show great potential for commercialization. However, non-halogen solvent processing of all-small-molecule organic solar cells are rarely reported and its power conversion efficiencies are very difficult to improve.
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