Toward Efficient Charge Transport of Polymer-Based Organic Field-Effect Transistors: Molecular Design, Processing, and Functional Utilization

Wu, Yangjiang; Zhao, Yan; Liu, Yunqi

doi:10.1021/accountsmr.1c00149

Cited by 31 publications

(23 citation statements)

References 60 publications

(117 reference statements)

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“…The pivotal factor however is that, in contrast to acenes, the chemical stability of HPs is excellent. Their carrier mobility is comparable with that of polycrystalline tetrathiafulvalene, larger than that of semiconducting polymers, 94 and much larger than that of regioisomeric thieno[3,4- b ]thiophenes. 2 They also favorably compare with competing materials as far as the ON/OFF voltage is concerned.…”

Section: Discussionmentioning

confidence: 95%

Multifunctional Heteropentalenes: From Synthesis to Optoelectronic Applications

Stecko

Gryko

2022

JACS Au

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In the broad family of heteropentalenes, the combination of two five-membered heterocyclic rings fused in the [3,2- b ] mode has attracted the most significant attention. The relatively straightforward access to these structures, being a consequence of the advances in the last two decades, combined with their physicochemical properties which match the requirements associated with many applications has led to an explosion of applied research. In this Perspective, we will discuss the recent progress of heteropentalenes’ usefulness as an active element of organic light-emitting diodes and organic field-effect transistors. Among the myriad of possible combinations for the different heteroatoms, thieno[3,2- b ]thiophenes and 1,4-dihydropyrrolo[3,2- b ]pyrroles are subject to the most intense studies. Together they comprise a potent optoelectronics tool resulting from the combination of appreciable photophysical properties, chemical reactivity, and straightforward synthesis.

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Section: Discussionmentioning

confidence: 95%

Multifunctional Heteropentalenes: From Synthesis to Optoelectronic Applications

Stecko

Gryko

2022

JACS Au

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“…The transparent conductive oxide components normally used are indium tin oxide (ITO) and fluorine-doped tin oxide (FTO). As a result of material shortages, brittleness, and costs, conducting polymers are a potential alternative for TCO due to their excellent, simple nano/microscale self-assembly, abundancy, and mechanical flexibility [ 44 , 45 ].…”

Section: The First Generation Solar Cellsmentioning

confidence: 99%

“…The materials mentioned above have promising applications in photovoltaics, thin-film transistors, supercapacitors, gas sensors, LEDs, and wearable electronics. Furthermore, their charge transport mechanisms are not well understood yet; it has been reported that intra chain charge transport enhancement exists as a result of new electronegative groups in conjugated backbones and acceptor dimerization, promoting the carrier mobility and stability of semiconducting polymers [ 44 , 45 ].…”

Section: The First Generation Solar Cellsmentioning

confidence: 99%

“…The results revealed the charge transport between chains within the crystallite π–π stacking distance and interchain charge transfer integral. Interestingly, the use of W-A combined with a volatile oxidant, antimony pentachloride, recorded an electrical conductivity between 7520 ± 240 S cm −1 , for PEDOT thin films [ 44 , 85 ].…”

Section: Third Generationmentioning

confidence: 99%

“…Another feature was the figure of merit (FoM) for transparent conductors, which reached an optimal maximum value of 94, 1.9× and 6.7× higher than oCVD PEDOT grown without W-A and usage of vanadium oxytrichloride and iron chloride agents, respectively. This procedure is cost-effective due to W-A oCVD being a single step all dry processes, involving direct growth of mechanical flexibility, conformal coverage, and rough structured surfaces with minimal to no complexity or costly transfer steps [ 44 , 85 ].…”

Section: Third Generationmentioning

confidence: 99%

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Solar Energy Materials-Evolution and Niche Applications: A Literature Review

2022

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The demand for energy has been a global concern over the years due to the ever increasing population which still generate electricity from non-renewable energy sources. Presently, energy produced worldwide is mostly from fossil fuels, which are non-renewable sources and release harmful by-products that are greenhouses gases. The sun is considered a source of clean, renewable energy, and the most abundant. With silicon being the element most used for the direct conversion of solar energy into electrical energy, solar cells are the technology corresponding to the solution of the problem of energy on our planet. Solar cell fabrication has undergone extensive study over the past several decades and improvement from one generation to another. The first solar cells were studied and grown on silicon wafers, in particular single crystals that formed silicon-based solar cells. With the further development in thin films, dye-sensitized solar cells and organic solar cells have significantly enhanced the efficiency of the cell. The manufacturing cost and efficiency hindered further development of the cell, although consumers still have confidence in the crystalline silicon material, which enjoys a fair share in the market for photovoltaics. This present review work provides niche and prominent features including the benefits and prospects of the first (mono-poly-crystalline silicon), second (amorphous silicon and thin films), and third generation (quantum dots, dye synthesized, polymer, and perovskite) of materials evolution in photovoltaics.

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Rapid Self‐Assembly Process at Air/Water Confined Interface for Highly Aligned Crystalline Polymeric Semiconductor Films

Yang

et al. 2023

Adv Elect Materials

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Recently, the carrier mobility of organic semiconductors has been significantly improved, surpassing that of amorphous silicon. [2] According to the chemical structures, organic semiconductors can be divided into small-molecule and polymeric semiconductors. Among them, polymeric semiconductors have attracted considerable attention owing to their stretchability and adequate solution processability. [3] The mobility values range from ≈10 −5 to 10 cm 2 V −1 s −1 with the development of new materials and the application of novel technologies. Consequently, these semiconductors have broad application prospects in flexible electronic devices. Organic field-effect transistors (OFETs) are core components in organic electronics, which form the basis for organic circuit systems to perform various functions. Polymeric semiconductors are commonly used as conducting channel materials in thin films OFETs to fabricate high-performance and stretchable transistor devices. The electrical properties of polymeric semiconductors are significantly affected by their molecular and crystalline multi-level structures. Theoretically, the chargecarrier can transport rapidly along the main straight chain of the polymer, and the mobility can exceed 10 2 cm 2 V −1 s −1 . [4] However, in actual OFETs, the charge-carrier mobility of the Highly aligned aggregation state structures have great significance for effective charge-carrier transport in organic semiconductors. Several methods have been developed to provide organic semiconducting molecules with highly oriented aggregation state structure; among these, using a water surface to form organic semiconductor films is a widely implemented strategy, wherein solutions are spread on the surface of water. However, common techniques of film formation on water surfaces generally result in a nonuniform orientation of the film owing to the isotropic spread process of droplets on the water surface. In this study, a spatially confined air/water interfacial assembly method is proposed to obtain uniformly aligned monolayer and multilayer poly(diketopyrrolopyrrole-thieno[3,2-b]thiophene) thin films with controlled thickness. The structural and morphological characterizations obtained using atomic force microscopy, high-resolution transmission electron microscopy, and grazing incidence wide-angle X-ray scattering indicates the crystalline structure of the thin films and high alignment of the molecular chains. The maximum mobility of the thin films reaches up to 2.06 and 0.5 cm 2 V −1 s −1 in the parallel and perpendicular direction, respectively, indicating apparent anisotropic electrical properties. Furthermore, an inverter based on these thin films exhibits a voltage gain of up to 70, demonstrating the potential of applying the proposed technique to logic circuits.

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Toward Efficient Charge Transport of Polymer-Based Organic Field-Effect Transistors: Molecular Design, Processing, and Functional Utilization

Cited by 31 publications

References 60 publications

Multifunctional Heteropentalenes: From Synthesis to Optoelectronic Applications

Multifunctional Heteropentalenes: From Synthesis to Optoelectronic Applications

Solar Energy Materials-Evolution and Niche Applications: A Literature Review

Rapid Self‐Assembly Process at Air/Water Confined Interface for Highly Aligned Crystalline Polymeric Semiconductor Films

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