Advances in flexible organic field-effect transistors and their applications for flexible electronics

npj Flexible Electronics, Journal Year: 2022, Volume and Issue: 6(1)

Published: Jan. 20, 2022

Abstract Flexible electronics have suggested tremendous potential to shape human lives for more convenience and pleasure. Strenuous efforts been devoted developing flexible organic field-effect transistor (FOFET) technologies rollable displays, bendable smart cards, sensors artificial skins. However, these applications are still in a nascent stage lack of standard high-performance material stacks as well mature manufacturing technologies. In this review, the choice device design FOFET devices circuits, demonstrated summarized detail. Moreover, technical challenges FOFETs future discussed.

Language: Английский

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Cocrystal Engineering: A Collaborative Strategy toward Functional Materials

Advanced Materials, Journal Year: 2019, Volume and Issue: 31(39)

Published: July 19, 2019

Abstract Cocrystal engineering with a noncovalent assembly feature by simple constituent units has inspired great interest and emerged as an efficient versatile route to construct functional materials, especially for the fabrication of novel multifunctional due collaborative strategy in distinct units. Meanwhile, precise crystal architectures organic cocrystals, long‐range order well free defects, offer opportunity unveil structure–property charge‐transfer–property relationships, which are beneficial provide some general rules rational design choice materials. In this regard, overview cocrystals terms assembly, containing intermolecular interactions growth methods, two functionality‐related factors including packing structure charge‐transfer nature, those advanced functionalities, is presented. An outlook future research directions challenges cocrystal also provided.

Language: Английский

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The Rise of the Dynamic Crystals

Journal of the American Chemical Society, Journal Year: 2020, Volume and Issue: 142(31), P. 13256 - 13272

Published: June 19, 2020

The anticipated shift in the focal point of interest solid-state chemists, crystal engineers, and crystallographers from structure to properties function parallels need apply our accumulated understanding intricacies explaining related properties, with ultimate goal harnessing that knowledge applications require soft, lightweight, or biocompatible organic solids. In these developments, adaptive molecular crystals warrant particular attention as an alternative choice materials for light, flexible, environmentally benign devices, primarily memories, capacitors, sensors, actuators. Some outstanding requirements application dynamic high-efficiency energy-storage devices are strongly induced polarization, a high switching field, narrow hysteresis case reversible processes. However, having been studied almost exclusively by still lack appropriate investigations reliably evaluate their reproducibility, scalability, actuating performance, some important drawbacks have diverted engineers applications. United under umbrella term adaptronics, recent research efforts aim realistically assess appositeness fast, reversible, continuous operation over prolonged periods time. With highlighting most this Perspective discusses assets pitfalls. It also provides hints on likely future developments capitalize untapped, sequestered potential distinct class

Language: Английский

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Wood-Based Flexible Electronics

ACS Nano, Journal Year: 2020, Volume and Issue: 14(3), P. 3528 - 3538

Published: Feb. 28, 2020

Next-generation electronics (e.g., substrate and conductor) need to be high performance, multifunctional, environmentally friendly. Here, we report the creation of a fully wood-based flexible circuit meeting these requirements, where substrate, strong, transparent wood film, is printed with lignin-derived carbon nanofibers conductive ink. The film fabrication involves extensive removal lignin hemicellulose tailor nanostructure material followed by collapsing cell walls. This process preserves original alignment cellulose promotes their binding. flexible, yet strong in fiber direction Young's modulus tensile strength 49.9 GPa 469.9 MPa, respectively. Furthermore, sustainable bio-based ink formulated nanofibers. on strain sensor application demonstrated. Combining produces environmental friendly for potential applications such as circuits sensors. Moreover, envision scalable continuous well end-of-life recyclability.

Language: Английский

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Highly Efficient All‐Small‐Molecule Organic Solar Cells with Appropriate Active Layer Morphology by Side Chain Engineering of Donor Molecules and Thermal Annealing

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(21)

Published: April 9, 2020

Abstract It is very important to fine‐tune the nanoscale morphology of donor:acceptor blend active layers for improving photovoltaic performance all‐small‐molecule organic solar cells (SM‐OSCs). In this work, two new small molecule donor materials are synthesized with different substituents on their thiophene conjugated side chains, including SM1‐S alkylthio and SM1‐F fluorine alkyl substituents, previously reported SM1 an substituent, investigating effect chains molecular aggregation photophysical, properties molecules. As a result, SM1‐F‐based SM‐OSC Y6 as acceptor, thermal annealing (TA) at 120 °C 10 min, demonstrates highest power conversion efficiency value 14.07%, which one best values SM‐OSCs so far. Besides, these results also reveal that molecules can distinctly influence crystallinity characteristics features, TA treatment effectively phase separation form suitable donor–acceptor interpenetrating networks, beneficial exciton dissociation charge transportation, leading highly efficient performance.

Language: Английский

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The Emergence of Organic Single‐Crystal Electronics

Angewandte Chemie International Edition, Journal Year: 2019, Volume and Issue: 59(4), P. 1408 - 1428

Published: March 30, 2019

Organic semiconducting single crystals are perfect for both fundamental and application-oriented research due to the advantages of free grain boundaries, few defects, minimal traps impurities, as well their low-temperature processability, high flexibility, low cost. Carrier mobilities greater than 10 cm2 V-1 s-1 in some organic indicate a promising application electronic devices. The progress made, including molecular structures fabrication technologies crystals, is introduced single-crystal devices, field-effect transistors, phototransistors, p-n heterojunctions, circuits, summarized. two-dimensional cocrystals, large together with potential applications, introduced. A state-of-the-art overview electronics, challenges prospects, also provided.

Language: Английский

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Two-Dimensional Field-Effect Transistor Sensors: The Road toward Commercialization

Chemical Reviews, Journal Year: 2022, Volume and Issue: 122(11), P. 10319 - 10392

Published: April 12, 2022

The evolutionary success in information technology has been sustained by the rapid growth of sensor technology. Recently, advances have promoted ambitious requirement to build intelligent systems that can be controlled external stimuli along with independent operation, adaptivity, and low energy expenditure. Among various sensing techniques, field-effect transistors (FETs) channels made two-dimensional (2D) materials attract increasing attention for advantages such as label-free detection, fast response, easy capability integration. With atomic thickness, 2D restrict carrier flow within material surface expose it directly environment, leading efficient signal acquisition conversion. This review summarizes latest 2D-materials-based FET (2D FET) sensors a comprehensive manner contains material, operating principles, fabrication technologies, proof-of-concept applications, prototypes. First, brief description background fundamentals is provided. subsequent contents summarize physical, chemical, biological their applications. Then, we highlight challenges commercialization discuss corresponding solution techniques. following section presents systematic survey recent progress developing commercial Lastly, long-standing efforts prospective future development FET-based toward commercialization.

Language: Английский

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Recent Advances in Multiresponsive Flexible Sensors towards E‐skin: A Delicate Design for Versatile Sensing

Small, Journal Year: 2021, Volume and Issue: 18(7)

Published: Nov. 25, 2021

Abstract Multiresponsive flexile sensors with strain, temperature, humidity, and other sensing abilities serving as real electronic skin (e‐skin) have manifested great application potential in flexible electronics, artificial intelligence (AI), Internet of Things (IoT). Although numerous sole function already been reported since the concept e‐skin, that mimics features human skin, was proposed about a decade ago, ones more capacities new emergences are urgently demanded. However, highly integrated sensitive multiresponsive functions becoming big thrust for detection body motions, physiological signals (e.g., blood pressure, electrocardiograms (ECG), electromyograms (EMG), sweat, etc.) environmental stimuli light, magnetic field, volatile organic compounds (VOCs)), which vital to real‐time all‐round health monitoring management. Herein, this review summarizes design, manufacturing, presents future challenges fabricating these next‐generation e‐skin wearable electronics.

Language: Английский

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Heartbeat-Sensing Mechanoluminescent Device Based on a Quantitative Relationship between Pressure and Emissive Intensity

Matter, Journal Year: 2019, Volume and Issue: 2(1), P. 181 - 193

Published: Nov. 6, 2019

Language: Английский

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Recent advances in n-type and ambipolar organic semiconductors and their multi-functional applications

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(4), P. 1331 - 1381

Published: Jan. 1, 2023

A comprehensive summary and deep insights into the synthesis, characterization multi-functional device applications of n-type ambipolar organic semiconductors are provided in this study.

Language: Английский

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