Stereochemical effect of covalent chemistry on the electronic structure and properties of the carbon allotropes and graphene surfaces

Bekyarova, Elena; Niyogi, Sandip; Sarkar, Santanu; Tian, Xiaojuan; Chen, Mingguang; Moser, Matthew L.; Ayub, Khurshid; Mitchell, Reginald H.; Haddon, Robert C.

doi:10.1016/j.synthmet.2015.07.004

Cited by 12 publications

(4 citation statements)

References 57 publications

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“…The fascinating properties, which originate from the unique electronic structure of graphene, motivate the wide interest in its potential application in many fields, such as electronics [3][4][5][6][7][8], spintronics [9], optics [5], environmental engineering [10,11], and aerospace [12]. Chemical vapor deposition (CVD) is among the most promising methods for production of macrosize, continuous, high-quality graphene films for industrial applications [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Large-scale cellulose-assisted transfer of graphene toward industrial applications

Chen

et al. 2016

Carbon

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CVD graphene has attracted a great deal of interest from both academia and industry. The strong motivation to commercialize high quality CVD graphene films and related devices has been restricted by the lack of a cheap, efficient, clean and reliable graphene transfer process. In this article, we report a novel graphene transfer technique which provides a route to high-throughput, reliable and economical transfer of graphene without introducing large cracks and residue contamination from polymers, such as PMMA or magnetic impurities. The transferred graphene was thoroughly characterized with Raman spectroscopy, Atomic Force Microscopy, and X-ray photoelectron spectroscopy. Fabricated large area graphene-based field effect transistors exhibited high mobilities, which were about 2 times higher than those for devices prepared with graphene transferred by the conventional wet transfer method. This new graphene transfer technique has the potential to expedite M

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Section: Introductionmentioning

confidence: 99%

Large-scale cellulose-assisted transfer of graphene toward industrial applications

Chen

et al. 2016

Carbon

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“…The naphthalene transfer method has the potential to expand the uses of CVD graphene by providing a cheap and simple transfer method without the problem of polymer residues. The availability of clean graphene films is crucial not only for device fabrication, but also for understanding the chemical reactivity of this extended pi-conjugated carbon system such as in the formation of organometalic hexahapto bonds with transition metals [36][37][38].…”

Section: Discussionmentioning

confidence: 99%

Sublimation-assisted graphene transfer technique based on small polyaromatic hydrocarbons

Chen

Stekovic

et al. 2017

Nanotechnology

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Advances in the chemical vapor deposition (CVD) growth of graphene have made this material a very attractive candidate for a number of applications including transparent conductors, electronics, optoeletronics, biomedical devices and energy storage. The CVD method requires transfer of graphene on a desired substrate and this is most commonly accomplished with polymers. The removal of polymer carriers is achieved with organic solvents or thermal treatment which makes this approach inappropriate for application to plastic thin films such as polyethylene terephthalate substrates. An ultraclean graphene transfer method under mild conditions is highly desired. In this article, we report a naphthalene-assisted graphene transfer technique which provides a reliable route to residue-free transfer of graphene to both hard and flexible substrates. The quality of the transferred graphene was characterized with atomic force microscopy, scanning electron microscopy, and Raman spectroscopy. Field effect transistors, based on the naphthalene-transfered graphene, were fabricated and characterized. This work has the potential to broaden the applications of CVD graphene in fields where ultraclean graphene and mild graphene transfer conditions are required.

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“…In typical occurrence, chemical reactions are traced at locations that exhibit weak or labile bonds, highly localized orbitals, dangling bonds, or localized charges [117]. All these cannot be found in graphene, whilst in its honeycomb lattice structure, each sp 2 atom of carbon is characterized by a 3-fold symmetric electronic hybridization where the p-orbitals extend out of the atomic plane [118]. In this manner, a self-passivating and highly delocalized network is formed [113].…”

Section: Surface Functionalization Of Graphene/go/rgo With Metal Oxid...mentioning

confidence: 99%

The Synergistic Properties and Gas Sensing Performance of Functionalized Graphene-Based Sensors

2022

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The detection of toxic gases has long been a priority in industrial manufacturing, environmental monitoring, medical diagnosis, and national defense. The importance of gas sensing is not only of high benefit to such industries but also to the daily lives of people. Graphene-based gas sensors have elicited a lot of interest recently, due to the excellent physical properties of graphene and its derivatives, such as graphene oxide (GO) and reduced graphene oxide (rGO). Graphene oxide and rGO have been shown to offer large surface areas that extend their active sites for adsorbing gas molecules, thereby improving the sensitivity of the sensor. There are several literature reports on the promising functionalization of GO and rGO surfaces with metal oxide, for enhanced performance with regard to selectivity and sensitivity in gas sensing. These synthetic and functionalization methods provide the ideal combination/s required for enhanced gas sensors. In this review, the functionalization of graphene, synthesis of heterostructured nanohybrids, and the assessment of their collaborative performance towards gas-sensing applications are discussed.

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Stereochemical effect of covalent chemistry on the electronic structure and properties of the carbon allotropes and graphene surfaces

Cited by 12 publications

References 57 publications

Large-scale cellulose-assisted transfer of graphene toward industrial applications

Large-scale cellulose-assisted transfer of graphene toward industrial applications

Sublimation-assisted graphene transfer technique based on small polyaromatic hydrocarbons

The Synergistic Properties and Gas Sensing Performance of Functionalized Graphene-Based Sensors

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