Reduced graphene oxide based Schottky diode on flex substrate for microwave circuit applications

Kaur, Amanpreet; Yang, Xianbo; Park, Kyoung Youl; Chahal, Premjeet

doi:10.1109/ectc.2013.6575700

Cited by 7 publications

(5 citation statements)

References 27 publications

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“…Using simple and scalable manufacturing processes, our diodes are able to compete directly with state-of-the-art radiofrequency Schottky devices based on a variety of nanomaterials, including carbon nanotubes [37][38][39] , graphene oxide 40 , MoS 2 21 and WSe 2…”

Section:  mentioning

confidence: 99%

100 GHz zinc oxide Schottky diodes processed from solution on a wafer scale

et al. 2020

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Inexpensive radiofrequency devices that can meet the ultrahigh-frequency needs of fifth-and sixth-generation wireless telecommunication networks are required. However, combining high performance with cost-effective scalable manufacturing has proved challenging. Here, we report the fabrication of solution-processed zinc oxide Schottky diodes that can operate in microwave and millimetre-wave frequency bands. The fully coplanar diodes are prepared using wafer-scale adhesion lithography to pattern two asymmetric metal electrodes separated by a gap of around 15 nm, and are completed with the deposition of a zinc oxide or aluminium-doped ZnO layer from solution. The Schottky diodes exhibit a maximum intrinsic cutoff frequency in excess of 100 GHz, and when integrated with other passive components yield radiofrequency energy-harvesting circuits that are capable of delivering output voltages of 600 mV and 260 mV at 2.45 GHz and 10 GHz, respectively.

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Section:  mentioning

confidence: 99%

100 GHz zinc oxide Schottky diodes processed from solution on a wafer scale

et al. 2020

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“…The main requirements of a substrate to be used in flexible electronics are fabrication compatibility, low cost, light weight, high optical transparency, thickness controllability, and mechanical flexibility. The most commonly employed substrates to fabricate a 2D materials-based flexible electronic device are poly(ethylene terephthalate) (PET), ,, polyethylene naphthalate (PEN), , poly(ether-ether-ketone) (PEEK), polyimide (PI), − ,,− and PDMS . Several other alternative substrates such as Ecoflex rubber, SU-8, parylene-C, along with a few non-polymeric substrates such as mica and ultrathin glass (UTG) were also attempted to produce flexible electronic devices (Table ).…”

Section: Challenges In 2d Materials-based Flexible Electronicsmentioning

confidence: 99%

2D Materials in Flexible Electronics: Recent Advances and Future Prospectives

Katiyar,

Hoang,

et al. 2023

Chem. Rev.

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Flexible electronics have recently gained considerable attention due to their potential to provide new and innovative solutions to a wide range of challenges in various electronic fields. These electronics require specific material properties and performance because they need to be integrated into a variety of surfaces or folded and rolled for newly formatted electronics. Two-dimensional (2D) materials have emerged as promising candidates for flexible electronics due to their unique mechanical, electrical, and optical properties, as well as their compatibility with other materials, enabling the creation of various flexible electronic devices. This article provides a comprehensive review of the progress made in developing flexible electronic devices using 2D materials. In addition, it highlights the key aspects of materials, scalable material production, and device fabrication processes for flexible applications, along with important examples of demonstrations that achieved breakthroughs in various flexible and wearable electronic applications. Finally, we discuss the opportunities, current challenges, potential solutions, and future investigative directions about this field.

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“…Kaur et al [269] employed graphene oxide in an aqueous dispersion in the only demonstration of solution phase fabricated graphene Schottky diodes to date (figure 22). In general, high temperatures are needed for the reduction of graphene oxide.…”

Section: Graphenementioning

confidence: 99%

“…As already mentioned, the absence of a bandgap in graphene represent a major bottleneck for several electronic applications, including rectifying devices such as diodes. Solutions to this major issue include use of partially reduced graphene oxide [269] or opening up a bandgap by using graphene nanoribbons [270]. A different approach investigated recently is to employ alternative quasi-2D materials for RF electronics.…”

Section: Graphenementioning

confidence: 99%

Flexible diodes for radio frequency (RF) electronics: a materials perspective

Semple

Georgiadou

Wyatt-Moon

et al. 2017

Semicond. Sci. Technol.

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Over the last decade, there has been increasing interest in transferring the research advances in radiofrequency (RF) rectifiers, the quintessential element of the chip in the RF identification (RFID) tags, obtained on rigid substrates onto plastic (flexible) substrates. The growing demand for flexible RFID tags, wireless communications applications and wireless energy harvesting systems that can be produced at a low-cost is a key driver for this technology push. In this topical review, we summarise recent progress and status of flexible RF diodes and rectifying circuits, with specific focus on materials and device processing aspects. To this end, different families of materials (e.g. flexible silicon, metal oxides, organic and carbon nanomaterials), manufacturing processes (e.g. vacuum and solution processing) and device architectures (diodes and transistors) are compared. Although emphasis is placed on performance, functionality, mechanical flexibility and operating stability, the various bottlenecks associated with each technology are also addressed. Finally, we present our outlook on the commercialisation potential and on the positioning of each material class in the RF electronics landscape based on the findings summarised herein. It is beyond doubt that the field of flexible high and ultra-high frequency rectifiers and electronics as a whole will continue to be an active area of research over the coming years.

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Reduced graphene oxide based Schottky diode on flex substrate for microwave circuit applications

Cited by 7 publications

References 27 publications

100 GHz zinc oxide Schottky diodes processed from solution on a wafer scale

100 GHz zinc oxide Schottky diodes processed from solution on a wafer scale

2D Materials in Flexible Electronics: Recent Advances and Future Prospectives

Flexible diodes for radio frequency (RF) electronics: a materials perspective

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