Recent Advances in High‐Mobility and High‐Stretchability Organic Field‐Effect Transistors: From Materials, Devices to Applications

Wu, Fuming; Liu, Yixuan; Zhang, Jun; Duan, Shuming; Ji, Deyang; Yang, Hui

doi:10.1002/smtd.202100676

Cited by 54 publications

(47 citation statements)

References 130 publications

(292 reference statements)

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“…They have emerged as the key component of next-generation electronics due to numerous exploitable properties. Flexibility and stretchability have proven OFETs to be the most appropriate candidates for wearable devices and even biosensors when combined with biocompatibility and biodegradability. , They can also be used as chemosensors. Analytes interact with the active layer and/or its interface with other layers when exposed to the environment, modulating their channel conductivity .…”

Section: Applicationsmentioning

confidence: 99%

Review of Conjugated Polymer Nanoparticles: From Formulation to Applications

Kang

Yoon

Kim³

et al. 2022

ACS Appl. Nano Mater.

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Conjugated polymers, which exhibit electrical and optical properties owing to the presence of conjugated π bonds along the polymer backbone, are semiconducting materials of utmost interest. However, their immiscibility in water imposes restrictions on their usage; they are typically processed using toxic and environmentally harmful organic solvents. To address these issues, research has focused on converting conjugated polymers into nanoparticle dispersions in water or alcohols. This strategy not only avoids toxic solvent usage but also enhances application utility. In this article, to provide a comprehensive understanding of conjugated polymer nanoparticles, we introduce two principal approaches for classifying nanoparticle formation strategies and their corresponding experimental methods: with respect to the particle formation mechanisms and their preparation methods; we will discuss six such methods. Then, we review three different applications of the conjugated polymer nanoparticles in the fields of electronics, energy, and bioimaging, associating their requirements for attaining superior device performance with the characteristics of each method, and accordingly discuss methodological perspectives for each application.

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Section: Applicationsmentioning

confidence: 99%

Review of Conjugated Polymer Nanoparticles: From Formulation to Applications

Kang

Yoon

Kim³

et al. 2022

ACS Appl. Nano Mater.

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“…As a futuristic invention of the flexible electronics industry, intrinsically stretchable electronic devices have been found to be useful for the development of biomedical, wearable, and intelligent conformal displays. [1][2][3][4] Recently, intrinsically stretchable (is-) polymer field-effect transistors (PFETs) and logical circuits fabricated using them have been applied to the development of electronic skin, [5,6] sensors, [7] photodetectors, [8] etc. Display devices made up of stretchable materials possess more free volume in foldable, stretchable, and seamless joints allowing elastomers with mixed emissive layers exhibit high driving voltages (typically >10 V) and low luminescence (<1000 cd cm −2 ).…”

Section: Introductionmentioning

confidence: 99%

A Self‐Assembled 3D Penetrating Nanonetwork for High‐Performance Intrinsically Stretchable Polymer Light‐Emitting Diodes

et al. 2022

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The use of scalable technology for the fabrication of stretchable-transistor active matrixes can promote rapid growth in the development of intrinsically stretchable displays. [11] However, since the stretchability of polymer light-emitting diodes (PLEDs) is limited, [12] intrinsically stretchable active-matrix organic light-emitting diodes (is-AMOLEDs) based on is-PLEDs have not yet been realized.The development of is-PLEDs is hindered primarily by the limited stretchability of the emissive layer and the chargeinjection interlayers. [13] Unlike in the case of stretchable transistors and other stretchable electroluminescent devices, [14] the development of stretchable PLEDs is also hindered by constricted energy-level alignment [15][16][17] and the rigorous requirement of injecting balanced charge to the emissive layer. [18,19] Furthermore, it is difficult to simultaneously achieve desirable charge transportability, appropriate energy-level alignment, and increased stretchability in the emissive layer of an is-PLEDs. Unlike in the case of intrinsically stretchable polymer semiconductors, [20][21][22] techniques for the design and synthesis of novel intrinsically stretchable luminescent polymers are currently being studied; [23][24][25] novel design concepts are needed to achieve improved luminescent and stretchable properties simultaneously. Moreover, the 3D vertical channels for charge transport throughout the emissive layer of a PLED are indispensable, unlike the quasi-2D horizontal channels field-effect transistors. Therefore, the nanoconfinement-elastomer-matrix strategy [26] and nanowire-polymer-matrix-assembly strategy, [27] which are extensively used for stretchable field-effect transistors, are not as effective for traditional luminescent polymers. An emissive polymer typically exhibits a significant decrease in mobility after the addition of a secondary elastomer component, [28] which results in an increase in the interchaincharge-transfer energy barrier; this is because the secondary elastomer acts as an interchain spacer in the emissive polymer after blending. Emissive polymer semiconductors have poor self-assembly properties due to which charge transportability significantly decreases after elastomer addition. Thus, there is a tradeoff between stretchability and mobility. PLEDs based onThe emergence of wearable technology can significantly benefit from electronic displays fabricated using intrinsically stretchable (is-) materials. Typically, an improvement in the stretchability of conventional light-emitting polymers is accompanied by a decrease in charge transportability, thus resulting in a significant decrease in device efficiency. In this study, a self-assembled 3D penetrating nanonetwork is developed to achieve increased stretchability and mobility simultaneously, based on high-molecular-weight phenylenevinylene (L-SY-PPV) and polyacrylonitrile (PAN). The mobility of L-SY-PPV/ PAN increases by 5-6 times and the stretchability increases from 20% (pristine L-SY-PPV film) to 100%. A high current eff...

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“…Moreover, the formed noncovalent interchain crosslinking network can offset the damage caused by external stress to a certain extent and provide the superiority of mechanical flexibility. [41][42][43][44] There are many types of noncovalent interactions such as halogen bond (Cl•••Cl, Br•••Br, etc. ), chalcogen bond (S•••F, S•••O, etc.…”

Section: Introductionmentioning

confidence: 99%

Recent Structural Engineering of Polymer Semiconductors Incorporating Hydrogen Bonds

et al. 2022

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Highly planar, extended π‐electron organic conjugated polymers have been increasingly attractive for achieving high‐mobility organic semiconductors. In addition to the conventional strategy to construct rigid backbone by covalent bonds, hydrogen bond has been employed extensively to increase the planarity and rigidity of polymer via intramolecular noncovalent interactions. This review provides a general summary of high‐mobility semiconducting polymers incorporating hydrogen bonds in field‐effect transistors over recent years. The structural engineering of the hydrogen bond‐containing building blocks and the discussion of theoretical simulation, microstructural characterization, and device performance are covered. Additionally, the effects of the introduction of hydrogen bond on self‐healing, stretchability, chemical sensitivity, and mechanical properties are also discussed. The review aims to help and inspire design of new high‐mobility conjugated polymers with superiority of mechanical flexibility by incorporation of hydrogen bond for the application in flexible electronics.

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Recent Advances in High‐Mobility and High‐Stretchability Organic Field‐Effect Transistors: From Materials, Devices to Applications

Cited by 54 publications

References 130 publications

Review of Conjugated Polymer Nanoparticles: From Formulation to Applications

Review of Conjugated Polymer Nanoparticles: From Formulation to Applications

A Self‐Assembled 3D Penetrating Nanonetwork for High‐Performance Intrinsically Stretchable Polymer Light‐Emitting Diodes

Recent Structural Engineering of Polymer Semiconductors Incorporating Hydrogen Bonds

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