Nano-Graphene and Its Derivatives for Fabrication of Flexible Electronic Devices: A Quick Review

Koh, Wee Siang; Lee, Kiat Moon; Toh, Pey Yi; Yeap, Swee Pin

doi:10.5185/amlett.2019.0050

Cited by 10 publications

(6 citation statements)

References 5 publications

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“…Thin glass, metal foils and plastics could be used to fabricate flexible electronics [70,71]. However, only plastic foils permit a low cost, high-speed production over large areas by using various printing technologies in an R2R production line.…”

Section: Flexible Substratesmentioning

confidence: 99%

“…Plastic substrates-In general, the polymer substrates should mimic the properties of planar rigid substrates. Dimensional and thermal stability, low coefficient of thermal expansion, good solvent resistance and good barrier properties for moisture, air and gases are necessary for plastic substrates [69][70][71][72]. In addition to physical, chemical, mechanical and optical performances, also the glass transition temperatures of different polymers have to be evaluated depending on the final application and the fabrication process involved.…”

Section: Flexible Substratesmentioning

confidence: 99%

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Year 2020: A Snapshot of the Last Progress in Flexible Printed Gas Sensors

Fioravanti

Carotta

2020

Applied Sciences

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A review of recent advances in flexible printed gas sensors is presented. During the last years, flexible electronics has started to offer new opportunities in terms of sensors features and their possible application fields. The advent of this technology has made sensors low-cost, thin, with a large sensing area, lightweight, wearable, flexible, and transparent. Such new characteristics have led to the development of new gas sensor devices. The paper makes some statistical remarks about the research and market of the sensors and makes a shot of the printing technologies, the flexible organic substrates, the functional materials, and the target gases related to the specific application areas. The conclusion is a short notice on perspectives in the field.

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Section: Flexible Substratesmentioning

confidence: 99%

Section: Flexible Substratesmentioning

confidence: 99%

Year 2020: A Snapshot of the Last Progress in Flexible Printed Gas Sensors

Fioravanti

Carotta

2020

Applied Sciences

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“…Material/Property a) PI [64,158,161] PET [64,158,161] PEN [64,158,161,162] SiO 2 [158,[163][164][165] Thin Glass [166,167] Al Foil [166,168] T g (°C) that is, high-speed rotational printing method. The system is composed by three different rolls or cylinders: printing cylinder, anilox roll, and plate roll.…”

Section: Contact Printing Methodsmentioning

confidence: 99%

Advances in Printing and Electronics: From Engagement to Commitment

Martins

Pereira

Lima

et al. 2023

Adv Funct Materials

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In recent years, printed electronics reached enormous popularity as a result of their huge potential to offer unique features that are not attainable through traditional fabrication, namely low‐cost production, multifunctionality, stretchability, sustainability, and flexibility. Being expected a galloping increase in the use of printed technologies in the near future, due to the digitalization efforts associated with the Internet of Things and the 4.0 revolution, it is timely and desirable to discuss the joint features, the interrelations, the complementarities, the interdependency, and the most demanding challenges linked to the relation between printed technologies and electronic materials. In this context, this study offers a broad review of the numerous printing technologies used in the processing of electronics, commonly used substrates, the most effective printed electronic materials, and the key post‐printing treatments such as sintering. Disruptive challenges in various printing techniques, (un)expected future research directions of printed electronics, and imminent application trends are also highlighted, following a critical and subjective perspective.

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“…The application of nanotechnology in electronics has gained attention along with the industrial revolution. 1 Two of such applications are the uses of nanotechnology in fabrication of wearable flexible gas sensors [2][3][4] and supercapacitors. [5][6][7][8] In this regard, the electrode for both the sensor and supercapacitor is commonly designed by casting/assembly nanoparticles that exhibit electronic properties onto a substrate.…”

Section: Introductionmentioning

confidence: 99%

“…Graphene and polyaniline (PANI) are well-known nanoparticles commonly used for such application owing to their intrinsic conducting and semiconducting properties. 9,10 Graphene, with a characteristically large specific surface area of 2630 m 2 g À1 , high charge carriers of 200,000 cm 2 V À1 s À1 , and high electrical conductivity owing to its sp 2 hybridized C networks made it an ideal candidates for flexible electrode materials. 11,12 Reduced graphene oxide (rGO), in particular is the most preferred derivatives of graphene for fabrication of sensor as it contains more defects and dangling bonds.…”

Section: Introductionmentioning

confidence: 99%

Shape‐controlled synthesis of polyaniline and its synergistic effect with reduced graphene oxide for the fabrication of flexible electrode

Khaw

Koh

Yeap

et al. 2023

Polymer Engineering & Sci

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Composite of reduced graphene oxide (rGO) and polyaniline (PANI) have gained much attention in industrial applications especially for the fabrication of supercapacitor and flexible sensors. Nevertheless, existing studies mainly focus on the application efficiency and are lacking information on how morphology of the nanoparticles can affect the electrode properties.Herein, the effects of shape of PANI on the electrode resistivity were systematically investigated. PANI of different shapes was synthesized using different reagents, namely H 2 SO 4 , CH 3 COOH, H 2 O, and NH 3 ÁH 2 O, which induced formation of globule, tube, plate, and flake-like PANI. rGO-PANI composite was then produced using ex situ method and cast on a PVC substrate to form a flexible electrode. The rGO-PANI globules displayed superior electrical conductivity owing to its high protonation level. The resistivity of this sample was found to be 0.015 ± 0.002 Ωcm, which is lowest as compared to the counterparts. Interestingly, electrode made of rGO-PANI plates had a slightly lower electrical resistivity than rGO-PANI tubes despite its low protonation level. It is speculate that the aspect ratio characteristic of the PANI might have influence the electron mobility. rGO-PANI electrode was found to exhibit a lower specific resistivity than pure rGO and pure PANI, evincing the presence of synergism.

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Nano-Graphene and Its Derivatives for Fabrication of Flexible Electronic Devices: A Quick Review

Cited by 10 publications

References 5 publications

Year 2020: A Snapshot of the Last Progress in Flexible Printed Gas Sensors

Year 2020: A Snapshot of the Last Progress in Flexible Printed Gas Sensors

Advances in Printing and Electronics: From Engagement to Commitment

Shape‐controlled synthesis of polyaniline and its synergistic effect with reduced graphene oxide for the fabrication of flexible electrode

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