Robot-Based High-Throughput Engineering of Alcoholic Polymer: Fullerene Nanoparticle Inks for an Eco-Friendly Processing of Organic Solar Cells

Xie, Chen; Tang, Xiaofeng; Berlinghof, Marvin; Langner, Stefan; Chen, Shi; Späth, Andreas; Li, Ning; Fink, R.; Unruh, Tobias; Brabec, Christoph J.

doi:10.1021/acsami.8b03621

Cited by 52 publications

(62 citation statements)

References 39 publications

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“…The automated platform (Figure 1B; Figure S1, Supporting Information) employed for this study was already used in our group to successfully synthesize and characterize organo metal‐halide perovskites and organic nanoparticles with outstanding precision 30,31. To form high quality drop‐cast films on inert carriers, we optimized a system to create separate wells on a glass plate.…”

Section: Figurementioning

confidence: 99%

Beyond Ternary OPV: High‐Throughput Experimentation and Self‐Driving Laboratories Optimize Multicomponent Systems

et al. 2020

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Fundamental advances to increase the efficiency as well as stability of organic photovoltaics (OPVs) are achieved by designing ternary blends, which represents a clear trend toward multicomponent active layer blends. The development of high‐throughput and autonomous experimentation methods is reported for the effective optimization of multicomponent polymer blends for OPVs. A method for automated film formation enabling the fabrication of up to 6048 films per day is introduced. Equipping this automated experimentation platform with a Bayesian optimization, a self‐driving laboratory is constructed that autonomously evaluates measurements to design and execute the next experiments. To demonstrate the potential of these methods, a 4D parameter space of quaternary OPV blends is mapped and optimized for photostability. While with conventional approaches, roughly 100 mg of material would be necessary, the robot‐based platform can screen 2000 combinations with less than 10 mg, and machine‐learning‐enabled autonomous experimentation identifies stable compositions with less than 1 mg.

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Section: Figurementioning

confidence: 99%

Beyond Ternary OPV: High‐Throughput Experimentation and Self‐Driving Laboratories Optimize Multicomponent Systems

et al. 2020

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“…Xie et al subsequently trialled the pre-formed blended nanoparticle ink approach with different active layers (P3HT:PC61BM, PDPP5T-2:PC71BM and PTB7:PNDI-T10), fabricating the electroactive organic layers using slot-die coating with the nanostructured inks. These efforts showed increasing success, transitioning from 3.8% with the P3HT donor to an impressive 7.5% with the low band gap PTB7 polymer [160,174,175]. These results indicate that the nanostructure innovations developed on the small scale through ink and morphology control mechanisms can indeed be scaled to larger sizes and maintain high device performance.…”

Section: 2printed Opv Devices At Scalementioning

confidence: 96%

Manipulating nanoscale structure to control functionality in printed organic photovoltaic, transistor and bioelectronic devices

et al. 2019

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Printed electronics is simultaneously one of the most intensely studied emerging research areas in science and technology and one of the fastest growing commercial markets in the world today. For the past decade the potential for organic electronic (OE) materials to revolutionize this printed electronics space has been widely promoted. Such conviction in the potential of these carbonbased semiconducting materials arises from their ability to be dissolved in solution, and thus the exciting possibility of simply printing a range of multifunctional devices onto flexible substrates at high speeds for very low cost using standard roll-to-roll printing techniques. However, the transition from promising laboratory innovations to large scale prototypes requires precise control of nanoscale material and device structure across large areas during printing fabrication. Maintaining this nanoscale material control during printing presents a significant new challenge that demands the coupling of OE materials and devices with clever nanoscience fabrication approaches that are adapted to the limited thermodynamic levers available. In this review we present an update on the strategies and capabilities that are required in order to manipulate the nanoscale structure of large area printed organic photovoltaic (OPV), transistor and bioelectronics devices in order to control their device functionality. This discussion covers a range of efforts to manipulate the electroactive ink materials and their nanostructured assembly into devices, and also device processing strategies to tune the nanoscale material properties and assembly routes through printing fabrication. The review finishes by highlighting progress in printed OE devices that provide a feedback loop between laboratory nanoscience innovations and their feasibility in adapting to large scale printing fabrication. The ability to control material properties on the nanoscale whilst simultaneously printing functional devices on the square metre scale is prompting innovative developments in the targeted nanoscience required for OPV, transistor and biofunctional devices.

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“…Furthermore, the nanoparticle approach also ensures that the thermodynamic control of the OSC film morphology is decoupled from the printing fabrication process, removing the need to consider solvent and thermal annealing treatments. Such nanoengineering approaches to building OSC devices thus enable the dual benefits of exquisite nanoscale film structure and low-cost, large-area printing of electronic devices to be simultaneously realized [86,87].…”

Section: Directed Nanostructure In Organic Semiconductorsmentioning

confidence: 99%

“…This method provides high-quality nanoparticulate electroactive inks; however, they are typically unstable and will form large aggregates over a time period of hours to days. Nanoparticles of donor/acceptor OSC blends synthesized via the nanoprecipitation method are reported to possess a morphology that is intimately intermixed at the nanoscale [87,89,90]. Such a morphology is highly beneficial for creating multiple heterointerfaces to maximize free charge generation from excitons.…”

Section: Directed Nanostructure In Organic Semiconductorsmentioning

confidence: 99%

Printable Organic Semiconductors for Radiation Detection: From Fundamentals to Fabrication and Functionality

et al. 2020

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The deployment of organic semiconducting materials for radiation detection is an emerging and highly attractive area of materials science research. These organic materials offer the enticing vision of technologies created from low-cost materials that can be printed on-demand with a range of different tailored optoelectronic functionalities. An explosion in the number of available materials, improved functionality of materials, and sophistication of solution-based device fabrication techniques for organic semiconductors in recent years have led to considerable opportunities for the utilization of organic materials in the detection of ionizing radiation. While the potential of organic semiconducting materials for low-cost radiation detection is clear, transitioning these printable materials to a commercial reality presents a significant scientific challenge. In this work, we provide a comprehensive analysis of the use of organic semiconductors for radiation detection. We discuss the fundamental physics of these materials and how their conduction mechanisms, including charge generation and charge transport, differ significantly from established inorganic semiconductors. Various strategies employed to control the nanostructure in organic semiconductors to optimize charge generation and transport for radiation detection are discussed. We provide insights into the strategies employed to fabricate organic semiconducting devices at industrially relevant scales using roll-to-roll solution processing and finally discuss existing examples of organic semiconducting materials utilized in the radiation detection arena.

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Robot-Based High-Throughput Engineering of Alcoholic Polymer: Fullerene Nanoparticle Inks for an Eco-Friendly Processing of Organic Solar Cells

Cited by 52 publications

References 39 publications

Beyond Ternary OPV: High‐Throughput Experimentation and Self‐Driving Laboratories Optimize Multicomponent Systems

Beyond Ternary OPV: High‐Throughput Experimentation and Self‐Driving Laboratories Optimize Multicomponent Systems

Manipulating nanoscale structure to control functionality in printed organic photovoltaic, transistor and bioelectronic devices

Printable Organic Semiconductors for Radiation Detection: From Fundamentals to Fabrication and Functionality

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