Current developments of eco-friendly organic field-effect transistors: from molecular engineering of organic semiconductors to greener device processing

Kim, Yun‐Hi; An, Tae Kyu; Lee, Gyeong Seok; Kim, Hyeok-jin

doi:10.1039/d3cc00191a

Cited by 11 publications

(2 citation statements)

References 122 publications

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“…Additionally, molecular design of organic semiconductors to enable thin film processing in ecologically friendly organic solvents (and water) has seen a significant amount of interest for the fabrication of OTFTs and organic photovoltaics. 165 Relevant reviews on sustainable materials synthesis has been reported by Phan and Luscombe, 166 and Marrocchi et al , 167 while reviews on green materials and processing of organic semiconductors to achieve less environmentally-harmful device fabrication processes have been published by Mooney et al , 168 Lee et al , 169 and Torricelli et al 170 A systematic study of green solvents to process a range of p- and n-type semiconductors including TIPS-pentacene, P3HT and perylene diimides was undertaken by Ho et al to study the effect of processing solvent on OTFT performance to develop general guidance for more sustainable device fabrication. 88 TIPS-pentacene processed from isobutyl acetate on a propylene glycol monomethyl ether acetate (PGMEA)-processed cellulose cinnamate gate dielectric achieved mobilities up to 2.6 cm 2 V −1 s −1 and an on/off current ratio of 10 4 .…”

Section: Future Developments In Otft Processing and Applicationsmentioning

confidence: 99%

Review of recent advances and sensing mechanisms in solid-state organic thin-film transistor (OTFT) sensors

King,

Lessard

2024

J. Mater. Chem. C

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Section: Future Developments In Otft Processing and Applicationsmentioning

confidence: 99%

Review of recent advances and sensing mechanisms in solid-state organic thin-film transistor (OTFT) sensors

King,

Lessard

2024

J. Mater. Chem. C

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“…This intricate pursuit encompasses the modification of pre-existing molecules or the creation of entirely unprecedented ones. Given the fact that structure plays a pivotal role in determining the material properties, the strategy of molecular engineering emerges as the fundamental starting point for the bottom-up design of OSCs, serving as the very essence of regulating supramolecular-assembly. , Drawing on these empirical observations, we summarize our endeavors on the regulation of supramolecular assembly, by bringing up a three-component OSC model with (i) a conjugated π core, (ii) an alkyl linker, and (iii) a polar head (Figure a). − In particular, the conjugated π core was chosen to facilitate charge-carrier transport in OSCs through efficient [π···π] stacking. The head groups are grafted for further functionalization by involving noncovalent interactions.…”

Section: Molecular Engineering Of Oscs To Install Supramolecular Asse...mentioning

confidence: 99%

Supramolecular Design and Assembly Engineering toward High-Performance Organic Field-Effect Transistors

Li,

Rogatch,

Chen

et al. 2024

Acc. Mater. Res.

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Metrics & MoreArticle Recommendations CONSPECTUS: Supramolecular assembly describes the dynamic processes in which molecules of a system organize themselves into ordered patterns or structures through noncovalent interactions. Among these systems, single-crystalline organic semiconductors (OSCs) in electronic devices, such as organic field-effect transistors (OFETs), represent a class of semiconductive molecules that can form regular lattices. These organic nature of these OSCs allows for precise design of the superstructure and compact arrangement through intermolecular interactions, such as [π•••π], van der Waals, and polarity−polarity interactions. As a result, they exhibit exceptional carrier mobilities and stability in solid-state aggregations, making them ideal for electronics research and production. However, it is important to note that defects and disorders are unavoidable in spontaneous and rapid supramolecular assembly processes. They will hinder charge-carrier transport as scattering sites and thus impair device performance. On the other hand, by utilizing different processing methods, OSCs can be prepared into variant aggregated forms, such as amorphous, liquid-crystalline, or single-crystalline films. The performance of devices that use these materials relies heavily on the specific properties of the assembled components. Therefore, the regulation of supramolecular assembly in solid aggregations is necessary to achieve high-performance devices as well as scaled electronic production with controllable cost, particularly in emerging fields, such as flexible electronics, wearable devices, and lowcost sensors. Currently, researchers are actively exploring the fundamental mechanism to regulate and enhance the performance of OSC aggregations as well as developing novel materials that broaden their potential applications. However, investigation on mechanisms and functions pertaining to molecule-level arrangements in solid-state OSCs remains underdeveloped, necessitating indepth investigation and summarization.In this Account, we first provide an overview and analysis of the supramolecular assembly process and the underlying mechanisms, focusing on three key dimensions, i.e., (i) molecular design, (ii) intermolecular interaction, and (iii) macroscopic morphology control. Then, we highlight our research on the morphology regulation and optimization of OSC films. Three strategies have been summarized and discussed to achieve high-quality OSCs and high-performance OFETs. These include: (i) molecular engineering of OSCs to install supramolecular assembly properties, (ii) thermal annealing optimization on OSCs films to increase crystallinity, and (iii) strain engineering processing on OSCs to install device functionalization. Their design rationales for target applications were analyzed. By deliberation on these issues, the fundamental underpinnings of material investigation are elucidated, thereby affording readers a comprehensive survey of the methodologies and strategies employed in the realm of single-crysta...

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Micrometer‐Thin Nanocellulose Foils for 3D Organic Electronics

Betker,

Erichlandwehr,

Sochor

et al. 2024

Adv Funct Materials

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Cellulose is a natural polymer with great properties such as high optical transparency and mechanical strength, flexibility, and biodegradability. Hence, cellulose‐based foils are suitable for the replacement of synthetic polymers as substrate materials in organic electronics. This article reports the fabrication of ultrathin, free‐standing cellulose foils by spraying aqueous 2,2,6,6‐tetramethylpiperidine‐1‐oxyl‐nanocellulose (TEMPO) fibrils ink layer‐by‐layer on a hot substrate using a movable spray nozzle. The resulting foils are only 2 ± 1 µm in thickness with an average basis weight of 1.9 g m−2, which ranges in the same scale as the world's thinnest paper. The suitability of these ultra‐thin nanocellulose foils as a sustainable substrate material for organic electronic applications is demonstrated by testing the foils resistance against organic solvents. Furthermore, silver nanowires (AgNWs) and the blend poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) are integrated into the foils, and the foils are molded into 3D paper structures in order to create conductive, paper‐based building blocks for organic electronics.

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Current developments of eco-friendly organic field-effect transistors: from molecular engineering of organic semiconductors to greener device processing

Abstract: Replacing environmentally damaging toxic halogenated/aromatic hydrocarbon organic solvents commonly used in solution-processed organic field-effect transistors with more sustainable green solvents has in recent years become a subject of various studies....

Cited by 11 publications

References 122 publications

Review of recent advances and sensing mechanisms in solid-state organic thin-film transistor (OTFT) sensors

Review of recent advances and sensing mechanisms in solid-state organic thin-film transistor (OTFT) sensors

Supramolecular Design and Assembly Engineering toward High-Performance Organic Field-Effect Transistors

Micrometer‐Thin Nanocellulose Foils for 3D Organic Electronics

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