Printing of Graphene and Related 2D Materials

Ng, Leonard W. T.; Hu, Guohua; Howe, Richard C. T.; Zhu, Xiaoxi; Yang, Zongyin; Jones, Callum; Hasan, Tawfique

doi:10.1007/978-3-319-91572-2

Cited by 42 publications

(94 citation statements)

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“…A low viscosity enables the ink to properly fill the recessed gravure cells in the cylinder before being transferred onto the substrate. A major difference between flexographic and gravure printing is the printing speed, with gravure printing being faster (≈1000 m min −1 ) than flexographic printing (≈500 m min −1 ) …”

Section: Patterning Of 2d Inks Into Functional Structures For Electromentioning

confidence: 99%

“…Successful gravure and flexographic printing processes require inks to be transferred to the substrate in a controlled and uniform way. The rheological characteristics of the inks, solvents, speed of printing, solvent evaporation rate and the nature of the substrate significantly affect this critical step …”

Section: Patterning Of 2d Inks Into Functional Structures For Electromentioning

confidence: 99%

“…However, compared to inkjet printing of 2D materials, less work has been done thus far using R2R printing. This is largely due to the high setup cost and the large quantities of ink (>10 L) required for R2R printing . Furthermore, a successful implementation of R2R into electronics manufacture would require optimization of current printing processes, as well as evaluation of factors affecting the quality of printed features with respect to their electrical behavior.…”

Section: Patterning Of 2d Inks Into Functional Structures For Electromentioning

confidence: 99%

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Production and Patterning of Liquid Phase–Exfoliated 2D Sheets for Applications in Optoelectronics

Witomska

Leydecker

Ciesielski

et al. 2019

Adv Funct Materials

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2D materials (2DMs), which can be produced by exfoliating bulk crystals of layered materials, display unique optical and electrical properties, making them attractive components for a wide range of technological applications. This review describes the most recent developments in the production of high-quality 2DMs based inks using liquid-phase exfoliation (LPE), combined with the patterning approaches, highlighting convenient and effective methods for generating materials and films with controlled thicknesses down to the atomic scale. Different processing strategies that can be employed to deposit the produced inks as patterns and functional thin-films are introduced, by focusing on those that can be easily translated to the industrial scale such as coating, spraying, and various printing technologies. By providing insight into the multiscale analyses of numerous physical and chemical properties of these functional films and patterns, with a specific focus on their extraordinary electronic characteristics, this review offers the readers crucial information for a profound understanding of the fundamental properties of these patterned surfaces as the millstone toward the generation of novel multifunctional devices. Finally, the challenges and opportunities associated to the 2DMs' integration into working opto-electronic (nano) devices is discussed.

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Section: Patterning Of 2d Inks Into Functional Structures For Electromentioning

confidence: 99%

Section: Patterning Of 2d Inks Into Functional Structures For Electromentioning

confidence: 99%

Section: Patterning Of 2d Inks Into Functional Structures For Electromentioning

confidence: 99%

See 1 more Smart Citation

Production and Patterning of Liquid Phase–Exfoliated 2D Sheets for Applications in Optoelectronics

Witomska

Leydecker

Ciesielski

et al. 2019

Adv Funct Materials

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show abstract

“…Although a number of methods have been explored for the deposition of 2D materials for functional devices, printing holds specific promise for high‐volume, low‐cost, and large‐area manufacturing . These include inkjet, screen and roll‐to‐roll (R2R) gravure, and flexographic printing which are already widely used in the large‐scale, ultralow‐cost production of packaging materials, everyday documents, magazines, and newspapers . Among these, screen printing has emerged as an effective method in depositing high‐viscosity graphene inks directly onto the substrates, typically via a stencil made of a fine synthetic fiber mesh that is capable of depositing 10–16 µm thick layers of ink .…”

Section: Introductionmentioning

confidence: 99%

“…These include inkjet, screen and roll‐to‐roll (R2R) gravure, and flexographic printing which are already widely used in the large‐scale, ultralow‐cost production of packaging materials, everyday documents, magazines, and newspapers . Among these, screen printing has emerged as an effective method in depositing high‐viscosity graphene inks directly onto the substrates, typically via a stencil made of a fine synthetic fiber mesh that is capable of depositing 10–16 µm thick layers of ink . Recent investigations have shown that screen printing can achieve high‐resolution (<40 µm) patterns of 2D materials on a variety of substrates, including glass, paper, textiles, polyester film, and even solid graphite .…”

Section: Introductionmentioning

confidence: 99%

Conformal Printing of Graphene for Single‐ and Multilayered Devices onto Arbitrarily Shaped 3D Surfaces

Zhu

et al. 2019

Adv Funct Materials

Self Cite

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Printing has drawn a lot of attention as a means of low per-unit cost and high throughput patterning of graphene inks for scaled-up thin-form factor device manufacturing. However, traditional printing processes require a flat surface and are incapable of achieving patterning onto 3D objects. Here, a conformal printing method is presented to achieve functional graphene-based patterns onto arbitrarily shaped surfaces. Using experimental design, a water-insoluble graphene ink with optimum conductivity is formulated. Then single-and multilayered electrically functional structures are printed onto a sacrificial layer using conventional screen printing. The print is then floated on water, allowing the dissolution of the sacrificial layer, while retaining the functional patterns. The single-and multilayer patterns can then be directly transferred onto arbitrarily shaped 3D objects without requiring any postdeposition processing. Using this technique, conformal printing of single-and multilayer functional devices that include joule heaters, resistive deformation sensors, and proximity sensors on hard, flexible, and soft substrates, such as glass, latex, thermoplastics, textiles, and even candies and marshmallows, is demonstrated. This simple strategy promises to add new device and sensing functionalities to previously inert 3D surfaces.

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Recent Development of Printed Micro‐Supercapacitors: Printable Materials, Printing Technologies, and Perspectives

2019

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The rapid progression of portable and wearable electronics has necessitated the development of high‐performing, miniaturized energy‐storage devices with flexible form factors and high energy and power delivery. Printed micro‐supercapacitors (MSCs), with in‐plane interdigital configurations, is touted as a promising choice to fulfill these requirements. New printing technologies can assemble MSCs with fiscal and environmental benefits, large form factors, and at high throughputs, qualities not afforded with conventional microfabrication technologies. Here, recent progress in the preparation of functional ink systems for wearable MSCs, encompassing electrode materials, conductor materials, and electrolytes, is presented. First, a comprehensive background of the fundamentals of printing technology is introduced, with discussions focusing on methods of improving ink functionality while simultaneously retaining good printability. Second, various printing techniques to ensure manufacturable scaling of wearable MSCs with high areal electrochemical performance and small footprint are explored. Within the scope of these two topics, various issues that hinder the full materialization of widespread adoption of printed MSC and next steps to overcome these issues are discussed. Further deep dives in scientific and technical challenges are also presented, including limited functionality of the inks, low printing resolution, overlay accuracy, and complex encapsulation.

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Printing of Graphene and Related 2D Materials

Cited by 42 publications

References 0 publications

Production and Patterning of Liquid Phase–Exfoliated 2D Sheets for Applications in Optoelectronics

Production and Patterning of Liquid Phase–Exfoliated 2D Sheets for Applications in Optoelectronics

Conformal Printing of Graphene for Single‐ and Multilayered Devices onto Arbitrarily Shaped 3D Surfaces

Recent Development of Printed Micro‐Supercapacitors: Printable Materials, Printing Technologies, and Perspectives

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