Effects of tunneling-based access resistance in layered single-crystalline organic transistors

Hamai, Takamasa; Arai, Shunto; Hasegawa, Tatsuo

doi:10.1557/jmr.2018.171

Cited by 15 publications

(7 citation statements)

References 45 publications

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“…99 Furthermore, the single-crystalline thin films of Ph-BTBT-C10 gave a mobility as high as 48.1 cm 2 V −1 s −1 . 15 The reported mobility value of dinaphtho [2,3- 9) single crystal is about 0.05 cm 2 V −1 s −1 , and the on/off ratio is in the order of 10 4 . 100 However, decyl-substituted DNBDT (C10-DNBDT-C10: 24, Figure 9) exhibited much higher mobility and on/off ratio compared to the unsubstituted DNBDT.…”

Section: Hydrocarbons With Thiophene Groups and Their Alkyl Derivativesmentioning

confidence: 99%

“…Figure 1 shows the statistical relationship between the charge carrier mobilities of typical organic semiconductors and their ages. In the 1980s, 14 the mobility of the first reported organic semiconductor is about 10 −5 cm 2 V −1 s −1 , while in 2018, 15,16 the values of small molecules are increased to 48.1 and 27.8 cm 2 V −1 s −1 for hole transport and electron transport, respectively. In the recent 20 years, the highest mobility values of OFETs have been increased dramatically.…”

Section: Introductionmentioning

confidence: 99%

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Greater than 10 cm² V⁻¹ s⁻¹: A breakthrough of organic semiconductors for field‐effect transistors

Jiang

2021

InfoMat

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Organic semiconductors have been receiving intensive attention due to the specific advantages of low-temperature processing ability, low-fabrication cost, flexibility, and so forth. The charge carrier mobility of higher than 10 cm 2 V −1 s −1 for organic semiconductors is of great importance to be studied since it presents a future promising research direction toward commercial microelectronic applications. With the significant progress of the discovery of novel organic molecules and the further improvements of device fabrication technology, some organic molecules can break the limit of our knowledge and show very high mobilities. In this review, organic polymers and small molecules with mobilities above 10 cm 2 V −1 s −1 are first introduced to provide the readers with a general understanding of the features and characteristics of high-performance organic semiconductors. Then, some important parameters, including the molecular structures, the device configurations, and the performance, are discussed in detail. Finally, the clues to obtain high mobility are summarized, and the perspective toward the future possible research directions are also provided.

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Section: Hydrocarbons With Thiophene Groups and Their Alkyl Derivativesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Greater than 10 cm² V⁻¹ s⁻¹: A breakthrough of organic semiconductors for field‐effect transistors

Jiang

2021

InfoMat

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“…The HB packing in C10-BTBT was then changed to a head-to-head, bilayer-type layered-HB (BLHB) packing (Fig. 1e) [23][24][25][26]. Similar to C10-BTBT, a 2D network of interactions (short contacts of S⋅⋅⋅S, S⋅⋅⋅C, and C-H⋅⋅⋅π) existed in the ab plane (Fig.…”

Section: Resultsmentioning

confidence: 99%

Impact of surface free energy on two-dimensional crystallization

et al. 2022

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Two-dimensional (2D) molecular crystals are emerging materials with fascinating optoelectronic properties. However, growing 2D organic single crystals is challenging because little is known about the factors that determine 2D crystallization. Herein, we investigated the relationship between 2D crystallization and the surface free energy of organic semiconductors. We proposed a term called surface free energy anisotropy factor (g) to measure the tendency of 2D crystallization. Taking two [1]benzothieno[3,2-b][1]benzothiophene derivatives as examples, we identified that the one with a larger g factor showed a higher tendency for 2D crystallization, irrespective of the external factors. This work provides a guideline for the rational design of organic semiconductors toward 2D crystallization.

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“…In recent years, research in solution-processed small-molecular organic semiconductors has gained rapid progress in both charge carrier mobilities [1][2][3][4][5][6][7] and ambient air stabilities. [8][9][10] By means of polymer additive [11][12][13][14][15][16][17][18][19] or dielectric layer engineering, [20][21] various solution processed semiconducting small molecules, such as diketopyrrolopyrrole based organic semiconductors, [22][23][24] 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene), [25][26][27][28][29][30] and 2,7-dioctyl [1] benzothieno [3,2-b] [1] benzothiophene (C 8 -BTBT), [31][32][33][34][35][36] have been reported with mobilities that reach or even transcend the mobility of amorphous silicon.…”

Section: Introductionmentioning

confidence: 99%

A Green Binary Solvent Method to Control Organic Semiconductor Crystallization

Sun

Zhou

et al. 2023

ChemistrySelect

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While solution‐processed small‐molecular organic semiconductors have been reported with significant research progress, their random crystal orientations and abundant defects at grain boundaries remain as a major obstacle to achieving high performance in organic electronic devices. In this paper, we demonstrate a binary solvent method that comprises a green solvent to manipulate the crystal alignment, morphology and charge transport of organic semiconductors. 6,13‐bis(triisopropylsilylethynyl) pentacene (TIPS pentacene) was studied as an example to showcase the enlargement of grain width and millimeter‐scale alignment of organic crystals based on the toluene/n‐amyl acetate binary solvents. At an optimized volume ratio of 3 : 1, the toluene/n‐amyl acetate binary solvent gave rise to a 4‐fold reduction in misorientation angle and approximately 40 % increase in the grain width. UV‐visible spectroscopy confirmed strong H‐aggregations with more favorable intrachain interaction and charge transport in TIPS pentacene. X‐ray diffraction showed enhanced peak intensities in (00 l) type of reflections and improved film crystallinity. Finally, thin film transistors were demonstrated to test the charge transport in the TIPS pentacene organic crystals. This work demonstrates the binary green solvent method can effectively regulate the organic semiconductor crystallization and alignment even in the absence of external alignment techniques such as solution shearing, and thereby sheds light on advancing facile organic electronic applications.

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Effects of tunneling-based access resistance in layered single-crystalline organic transistors

Abstract: Abstract

Cited by 15 publications

References 45 publications

Greater than 10 cm² V⁻¹ s⁻¹: A breakthrough of organic semiconductors for field‐effect transistors

Greater than 10 cm² V⁻¹ s⁻¹: A breakthrough of organic semiconductors for field‐effect transistors

Impact of surface free energy on two-dimensional crystallization

A Green Binary Solvent Method to Control Organic Semiconductor Crystallization

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Effects of tunneling-based access resistance in layered single-crystalline organic transistors

Abstract: Abstract

Cited by 15 publications

References 45 publications

Greater than 10 cm2 V−1 s−1: A breakthrough of organic semiconductors for field‐effect transistors

Greater than 10 cm2 V−1 s−1: A breakthrough of organic semiconductors for field‐effect transistors

Impact of surface free energy on two-dimensional crystallization

A Green Binary Solvent Method to Control Organic Semiconductor Crystallization

Contact Info

Product

Resources

About

Greater than 10 cm² V⁻¹ s⁻¹: A breakthrough of organic semiconductors for field‐effect transistors

Greater than 10 cm² V⁻¹ s⁻¹: A breakthrough of organic semiconductors for field‐effect transistors