Graphene-oxide films printed on rigid and flexible substrates for a wide spectrum of applications

Антонова, И. В.; Kotin, I. A.; Попов, В. И.; Vasileva, F. D.; Kapitonov, A. N.; Smagulova, S. A.

doi:10.1134/s1063782616080066

Cited by 8 publications

(1 citation statement)

References 14 publications

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“…The functional groups (C–OH, C = O, C–H) on the surface of CDs influence on the energy levels between π and π* states of the CC bond. To explain the mechanism of PL CDs, one must pay attention to the mechanism of graphene oxide (GO) PL, since GO and CDs possess similar chemical structures . GO contains oxygen functional groups on the basal plane, or along the edges.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Luminescent N‐Doped Carbon Dots by Hydrothermal Treatment

Tomskaya

Egorova

Kapitonov

et al. 2017

Physica Status Solidi (b)

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This article describes a simple synthesis of two types of carbon dots (CDs) from glucose (g-CDs) and citric acid (ca-CDs) using the hydrothermal treatment method. At the synthesis the water solution of ammonia was used for doping of the g-CDs and ca-CDs by N for improving their electronic and transport properties. These synthesized CDs consist mostly of 1-4 layers having a uniform size of about 14 nm, and the nitrogen atoms were successfully introduced into the lattice of CDs. The resulting CDs have a crystalline structure with functional groups on the surface and exhibit bright photoluminescence in the violet-blue region of the spectrum. The g-CDs exhibit an excitation-dependent blue emission, in the case of ca-CDs their emission dependence on excitation is not clearly observed. The obtained CDs have a number of advantages and can be widely used for the creation of photodetectors, detectors for chemical elements and various optoelectronic applications.

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Section: Resultsmentioning

confidence: 99%

Synthesis of Luminescent N‐Doped Carbon Dots by Hydrothermal Treatment

Tomskaya

Egorova

Kapitonov

et al. 2017

Physica Status Solidi (b)

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High carrier mobility in quasi-suspended few-layer graphene on printed graphene oxide layers

2017

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Two-layer and composite films based on oxidized and fluorinated graphene

Ivanov

Nebogatikova

Kotin

et al. 2017

Phys. Chem. Chem. Phys.

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This study is devoted to the production and investigation of dielectric films, based on oxidized and fluorinated graphene suspensions. The properties of the graphene oxide films may be greatly improved by adding fluorographene. FG films have transmission in the visible and near infrared ranges equal to 96-98%. Two-layer films of fluorinated graphene on graphene oxide and composite films (composite suspension of fluorinated and oxidized graphene) exhibit good insulating properties. Their leakage currents are lower than that in the graphene oxide or fluorinated graphene by 3-5 orders of magnitude. A significant increase in thermal stability and relatively low charge in the film and at the interface with silicon (3 × 10-1.4 × 10 cm) are also found for these films. An application of thin fluorographene films (a few nanometers) decorates and eliminates structural defects in the graphene oxide films, resulting in conductivity blocking in graphene oxide. The built-in charge density in the composite film of 10-20% fluorographene in the graphene oxide is much less than in the two-layer film (<1 × 10 cm). The created two-layer and composite films may be practically applied in 2D printed and flexible electronics as insulating films (gate dielectric and interlayer insulator), as well as materials showing the resistive effect.

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Graphene-oxide films printed on rigid and flexible substrates for a wide spectrum of applications

Cited by 8 publications

References 14 publications

Synthesis of Luminescent N‐Doped Carbon Dots by Hydrothermal Treatment

Synthesis of Luminescent N‐Doped Carbon Dots by Hydrothermal Treatment

High carrier mobility in quasi-suspended few-layer graphene on printed graphene oxide layers

Two-layer and composite films based on oxidized and fluorinated graphene

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