Controlled Growth of Large‐Area High‐Performance Small‐Molecule Organic Single‐Crystalline Transistors by Slot‐Die Coating Using A Mixed Solvent System

Chang, Jingjing; Zhang, Jie; Wu, Jishan

doi:10.1002/adma.201301267

Cited by 128 publications

(109 citation statements)

References 39 publications

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“…Using this approach, the author achieved single crystalline thin-film transistors with carrier mobility as high as 16.4 cm 2 V À1 s À1 for ink-jet printed devices [23]. For TIPS-pentacene, several groups have reported using mixed solvent systems to enhance the thin film crystallinity, and achieved highly crystalline OFETs with charge carrier mobility up to 3.2 cm 2 V À1 s À1 [24]. Using solvent additives or mixed solvents to enhance the polymer crystallization were also reported in the literature [25e27].…”

Section: Introductionmentioning

confidence: 98%

“…Therefore, several successful strategies were developed to enhance the organic semiconductor film crystallinity and morphology [32], such as dip-coating [33], solution-shearing [34], and slot die coating [24]. Among these methods, slot die coating has been proved to be a simplistic and manufacturable approach to fabricate large area high performance field effect transistors.…”

Section: Introductionmentioning

confidence: 99%

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Controlling aggregation and crystallization of solution processed diketopyrrolopyrrole based polymer for high performance thin film transistors by pre-metered slot die coating process

Chang

Sonar

Lin

et al. 2016

Organic Electronics

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a b s t r a c tThe organic semiconductors have attracted much attention for plastic electronics due to their good solution processability, low temperature deposition, and compatible with large-area printing technology. The charge transport properties of polymer based field effect transistors are limited by their amorphous domains and weakly interaction between polymer chains. In this study, antisolvent like methanol is introduced to promote polymer chain aggregation, and slot die coating is used to finely tune the film morphology. The effects of anti-solvent introduction and slot die coating process on the device performance, e.g. charge transport, surface morphology, and solid state packing, were investigated in details. By optimizing the antisolvent ratio and polymer chain aggregation, the charge transport properties of the polymer devices were observed to be significantly improved. An average charge carrier mobility of 3.76 cm 2 V À1 s À1 and a maximum mobility of 4.10 cm 2 V À1 s À1 were achieved under optimized conditions. The controlling the aggregation degree by combining the mixed solvent system and slot die coating technique provides a convenient and practical approach to achieve high performance polymer field effect transistor.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Controlling aggregation and crystallization of solution processed diketopyrrolopyrrole based polymer for high performance thin film transistors by pre-metered slot die coating process

Chang

Sonar

Lin

et al. 2016

Organic Electronics

Self Cite

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“…The slot die coating is scalable to large areas and, therefore, applicable for the fabrication of large area low-cost electronics. We first applied this technique in the OFET fabrication [63]. Figure 6 schematically illustrates this process.…”

Section: Thin-film Alignmentmentioning

confidence: 99%

“…The depositing speed is controlled within the range of 0.1-19.9 mm/s. The pre-exposed seeding film can act as nucleation sites and allow the remaining molecules in the solution to grow along the coating direction [63].…”

Section: Thin-film Alignmentmentioning

confidence: 99%

Organic Field-Effect Transistor: Device Physics, Materials, and Process

Chang¹,

Lin²,

Zhang³

et al. 2017

Different Types of Field-Effect Transistors - Theory and Applications

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Organic field-effect transistors have received much attention in the area of low cost, large area, flexible, and printable electronic devices. Lots of efforts have been devoted to achieve comparable device performance with high charge carrier mobility and good air stability. Meanwhile, in order to reduce the fabrication costs, simple fabrication conditions such as the printing techniques have been frequently used. Apart from device optimization, developing novel organic semiconductor materials and using thin-film alignment techniques are other ways to achieve high-performance devices and functional device applications. It is expected that by combining proper organic semiconductor materials and appropriate fabrication techniques, high-performance devices for various applications could be obtained. In this chapter, the organic field-effect transistor in terms of device physics, organic materials, device process, and various thin-film alignment techniques will be discussed.

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“…7 Although these techniques have several merits, they present challenges in terms of controlling the film thickness and uniformity over a large area. To resolve these issues, meniscusguided coating methods such as blade coating, 8 shearing, 9,10 and slot die coating 11 have recently been investigated. 12 Meniscus-guided coating, also called unidirectional coating, allows the growth of uniform, well-aligned films over a large area using a simpler process than the aforementioned techniques.…”

mentioning

confidence: 99%

Importance of angular mismatch on anisotropic field-effect mobility in solution-processed organic thin-film transistors

Vincent

2017

AIP Advances

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We demonstrate the influence of angular mismatch on the field-effect mobility in solution-processed organic thin-film transistors based on the study of anisotropic organic semiconductor (OSC) layer characteristics. The mobility alteration caused by angular mismatch was significantly affected by the molecular alignment and crystallinity characteristics. In particular, the sensitivity of mobility increased with angular mismatch. This tendency was more pronounced as the molecular alignment and crystallinity were enhanced. These results clearly show the dependence of the anisotropic mobility properties, which were induced by angular mismatch, on the OSC film characteristics.

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Controlled Growth of Large‐Area High‐Performance Small‐Molecule Organic Single‐Crystalline Transistors by Slot‐Die Coating Using A Mixed Solvent System

Cited by 128 publications

References 39 publications

Controlling aggregation and crystallization of solution processed diketopyrrolopyrrole based polymer for high performance thin film transistors by pre-metered slot die coating process

Controlling aggregation and crystallization of solution processed diketopyrrolopyrrole based polymer for high performance thin film transistors by pre-metered slot die coating process

Organic Field-Effect Transistor: Device Physics, Materials, and Process

Importance of angular mismatch on anisotropic field-effect mobility in solution-processed organic thin-film transistors

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