Engineering of Flexo- and Gravure-Printed Indium–Zinc-Oxide Semiconductor Layers for High-Performance Thin-Film Transistors

Spiehl, Dieter; Häming, M.; Sauer, Hans Martin; Bonrad, Klaus; Dörsam, Edgar

doi:10.1109/ted.2015.2449665

Cited by 17 publications

(6 citation statements)

References 38 publications

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“…[152] On the other hand, the preparation of short channels in POFETs, and their utilization in high-speed flexible circuits, requires the use of high-cost and sophisticated methods, such as nanoimprint lithography, gravure printing, and flexography. [229][230][231] Considering this aspect, the VOFET technology seems more feasible since it offers a low-cost solution without compromising the device performance. Moreover, VOFETs can be used to easily produce large-area ICs using printing techniques.…”

Section: Discussion and Comparison Between Pofet-and Vofet-based Flex...mentioning

confidence: 99%

“…To this end, various approaches based on nanoimprint lithography, gravure, and flexography have been developed. [229][230][231] Although such techniques yield transistor channel lengths of less than 10 µm, they require prepatterned fine microstructures on imprinting rollers or plates, and thus they are more suited for very large-scale manufacturing. On the other hand, the fabrication of OFETs in a vertical architecture (viz.…”

Section: Application In Flexible Logic Gates Inverters and Oscillatorsmentioning

confidence: 99%

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Impact of Planar and Vertical Organic Field‐Effect Transistors on Flexible Electronics

et al. 2023

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According to the forecast of Allied Market Research, the flexible electronics market is projected to reach $42.48 billion by 2027. It is estimated to revolutionize the lighting technology, power integration displays, and health monitoring systems. The popularity of flexible electronics is mainly due to the unique benefits of organic materials and devices that offer cost-effectiveness, low-temperature processability, mechanical softness, and shape adaptability, [5][6][7] which are difficult to obtain with traditional, complementary-metal-oxide-semiconductor (CMOS)-based rigid systems. [8] Over the past two decades, research interest in flexible electronic systems has grown exponentially, driven by the requirements of interface softness and shape adaptability for electronics used in Internet-of-Things (IoT), [9] human-machine interfaces, [10] and advanced healthcare. [11] Although significant progress has been made in academia, the practical application of flexible electronics in the industry is limited. Presently, thin-film photovoltaics and flexible displays mainly contribute to the flexible electronics market, with a noticeable presence held by radio frequency identification (RFID) tags and medical X-ray imagers. [12] Indeed, much of the success of present flexible electronic systems rely on the performance and reliability of thin-film The development of flexible and conformable devices, whose performance can be maintained while being continuously deformed, provides a significant step toward the realization of next-generation wearable and e-textile applications. Organic field-effect transistors (OFETs) are particularly interesting for flexible and lightweight products, because of their low-temperature solution processability, and the mechanical flexibility of organic materials that endows OFETs the natural compatibility with plastic and biodegradable substrates. Here, an in-depth review of two competing flexible OFET technologies, planar and vertical OFETs (POFETs and VOFETs, respectively) is provided. The electrical, mechanical, and physical properties of POFETs and VOFETs are critically discussed, with a focus on four pivotal applications (integrated logic circuits, light-emitting devices, memories, and sensors). It is pointed out that the flexible function of the relatively newer VOFET technology, along with its perspective on advancing the applicability of flexible POFETs, has not been reviewed so far, and the direct comparison regarding the performance of POFET-and VOFET-based flexible applications is most likely absent. With discussions spanning printed and wearable electronics, materials science, biotechnology, and environmental monitoring, this contribution is a clear stimulus to researchers working in these fields to engage toward the plentiful possibilities that POFETs and VOFETs offer to flexible electronics.

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Section: Discussion and Comparison Between Pofet-and Vofet-based Flex...mentioning

confidence: 99%

Section: Application In Flexible Logic Gates Inverters and Oscillatorsmentioning

confidence: 99%

Impact of Planar and Vertical Organic Field‐Effect Transistors on Flexible Electronics

et al. 2023

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“…15,16 Furthermore, high carrier mobility was also revealed in layered MOs, e.g., B1000 cm 2 V À1 s À1 for MoO 3 flakes, 16 comparable to that of bulk silicon and 2D phosphorene. 4,17 Major advances of layered metal oxide films in electronic applications have already been achieved, including multigate FETs, 8,18 gas sensors, 18 p-n junctions and complementary circuits, 19,20 printable metal oxide electronics technology [21][22][23] and flat panel displays. 7,24 These findings and technological advancements indicate that the layered MOs represent an important class of 2D materials with great potential in cutting-edge electronics and optoelectronics.…”

Section: Introductionmentioning

confidence: 99%

Eighteen functional monolayer metal oxides: wide bandgap semiconductors with superior oxidation resistance and ultrahigh carrier mobility

Guo

Mao

et al. 2019

Nanoscale Horiz.

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“… 29 For example, literature describes gravure printing as a good candidate for thin film production in electronics as it allows high throughput, high control of film characteristics and provides the opportunity to print well-defined multiple layers. 30 With respect to production of complex mesoporous film architectures, gravure printing bares the potential to generate more homogeneous films in much shorter production time as compared to established EISA using dip- or spin-coating and ink-jet printing. In addition, standardization and automation of the film preparation process as well as complex film architecture fabrication should be relatively easy.…”

Section: Introductionmentioning

confidence: 99%

Gravure printing for mesoporous film preparation

et al. 2019

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Engineering of Flexo- and Gravure-Printed Indium–Zinc-Oxide Semiconductor Layers for High-Performance Thin-Film Transistors

Cited by 17 publications

References 38 publications

Impact of Planar and Vertical Organic Field‐Effect Transistors on Flexible Electronics

Impact of Planar and Vertical Organic Field‐Effect Transistors on Flexible Electronics

Eighteen functional monolayer metal oxides: wide bandgap semiconductors with superior oxidation resistance and ultrahigh carrier mobility

Gravure printing for mesoporous film preparation

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