Electronic Transport Properties of Individual Chemically Reduced Graphene Oxide Sheets

Gómez-Navarro, Cristina; Weitz, R. Thomas; Bittner, Alexander M.; Scolari, Matteo; Mews, Alf; Burghard, Marko; Kern, Klaus

doi:10.1021/nl901209z

Cited by 331 publications

(454 citation statements)

References 1 publication

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“…Furthermore, there are several methods that can be used to reduce graphene oxide (GO) to produce reduced graphene oxide (rGO), which are treating GO with hydrazine [117][118][119][120], and sodium borohydrate (NaBH 4 ) [121,122]. Hydrazine hydrate does not react with water and it is capable to produce very thin and fine graphite-like sheets [89].…”

Section: Graphite Conversionmentioning

confidence: 99%

Graphene modifications in polylactic acid nanocomposites: a review

Norazlina

Yusoh

2015

Polym. Bull.

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Considerable interest has been devoted to graphene since this material has shown promising and excellent results in mechanical and thermal properties. This finding has attracted more researchers to discover the attributes of graphene due to its extensive and potential applications. This paper reviewed the recent advances in the modification of graphene and the fabrication of polylactic acid/ graphene nanocomposite. The different techniques that have been employed to prepare graphene, such as reduction of graphene oxide and chemical vapor deposition, are discussed briefly. The preparations of PLA/graphene nanocomposites are described using in situ polymerization, solution, and melt blending; and the properties of these nanocomposites are reviewed. Due to the difficulties in obtaining good dispersions, modifications of nanomaterials have been the critical issues that lead to excellent mechanical properties.

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Section: Graphite Conversionmentioning

confidence: 99%

Graphene modifications in polylactic acid nanocomposites: a review

Norazlina

Yusoh

2015

Polym. Bull.

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“…Uniform GO thin films can then be reproducibly deposited onto the required substrate via a facile spin-coating process by using the as-prepared GO aqueous dispersions [30]. The unreduced GO is known to have a sheet resistance in the Grange [25]. However, its out-of-plane electronic properties, which are essential for assessing its potential usage as a gate insulator, have seldom been characterized.…”

Section: Preparation Of Go Filmsmentioning

confidence: 99%

“…Graphite oxide (GO) [19][20][21][22][23][24][25] with insulating properties can be obtained by oxidizing graphite. Compared with previous reported oxide dielectrics, mono-or few-layer GO films can be deposited and bonded to various substrates through weak non-covalent interactions by solution-based processing at low temperatures [26], which will meet the technological challenges for delivering low-cost, thin dielectric material layers that are inherently compatible with nanotube electronics.…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube transistors with graphene oxide films as gate dielectrics

Liu

Wen-long

et al. 2010

Sci. China Phys. Mech. Astron.

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Carbon nanomaterials, including the one-dimensional (1-D) carbon nanotube (CNT) and two-dimensional (2-D) graphene, are heralded as ideal candidates for next generation nanoelectronics. An essential component for the development of advanced nanoelectronics devices is processing-compatible oxide. Here, in analogy to the widespread use of silicon dioxide (SiO 2 ) in silicon microelectronic industry, we report the proof-of-principle use of graphite oxide (GO) as a gate dielectrics for CNT field-effect transistor (FET) via a fast and simple solution-based processing in the ambient condition. The exceptional transistor characteristics, including low operation voltage (2 V), high carrier mobility (950 cm 2 /V −1 s −1 ), and the negligible gate hysteresis, suggest a potential route to the future all-carbon nanoelectronics.carbon-based nanoelectronics, graphene oxide, gate dielectrics PACS: 73.63.Fg, 61.48.Gh

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“…20 For the production of large quantities of graphene, the modified Hummer's method for the production of GO through chemical exfoliation of graphite to graphite oxide and then graphite oxide to GO has gained much attention due to low-cost and higher yield in comparison to other methods. [21][22][23][24] However, this method is not ideal because the GO produced suffers from some important drawbacks such as poor electrical conductivity due to the presence of epoxide, carboxyl, and hydroxyl groups on the graphene sheets. 2 Further, the reduction of GO to graphene needs insalubrious chemical reductants such as hydrazine or sodium borohydride, and high temperature heating in order to recover the graphitic structure.…”

Section: Introductionmentioning

confidence: 99%

One-step synthesis of graphene via catalyst-free gas-phase hydrocarbon detonation

et al. 2013

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A one-step, gas-phase, catalyst-free detonation of hydrocarbon (C2H2) method was developed to produce gram quantities of pristine graphene nanosheets (GNs). The detonation of C2H2 was carried out in the presence of O2. The molar ratios of O2/C2H2 were 0.4, 0.5, 0.6, 0.7 and 0.8. The obtained GNs were analyzed by XRD, TEM, XPS and Raman spectroscopy. The GNs are crystalline with a (002) peak centered at 26.05° (d = 0.341 nm). TEM shows that the GNs are stacked in two to three layers and sometimes single layers. An increase in the size of the GNs (35–250 nm) along with a reduction in defects (Raman ID/IG ∼ 1.33–0.28) and specific surface area (187–23 m2 g−1) was found with increasing O2 content. The high temperature of the detonation, ca. 4000 K, is proposed as the cause of graphene production rather than normal soot. The method allows for the control of the number of layers, shape and size of the graphene nanosheets. The process can be scaled up for industrial production.

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Electronic Transport Properties of Individual Chemically Reduced Graphene Oxide Sheets

Cited by 331 publications

References 1 publication

Graphene modifications in polylactic acid nanocomposites: a review

Graphene modifications in polylactic acid nanocomposites: a review

Carbon nanotube transistors with graphene oxide films as gate dielectrics

One-step synthesis of graphene via catalyst-free gas-phase hydrocarbon detonation

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