Journal ArticleDOI
Laser flash synthesis of graphene and its inorganic analogues: An innovative breakthrough with immense promise
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TLDR
Laser-based green synthetic approaches for 2D atomic sheets of graphene, graphene nanoribbons and inorganic analogues of graphene are relatively new techniques as discussed by the authors, which are capable of yielding impurity-free device quality 2D materials in a scalable manner and consequently inspiring various commercial applications.Abstract:
Laser-based green synthetic approaches for 2D atomic sheets of graphene, graphene nanoribbons and inorganic analogues of graphene are relatively new techniques. There are several significant laser-based approaches for graphene synthesis such as (a) laser exfoliation, (b) intercalation and exfoliation in liquid nitrogen, (c) pulsed laser deposition, (d) laser induced ultrafast chemical vapour deposition, (e) laser induced catalyst-free growth of graphene from solid carbon sources, (f) epitaxial graphene growth on a Si rich surface of SiC by laser sublimation of surface silicon atoms, (g) reduction of graphene oxide and (h) unzipping of carbon nanotubes. Apart from the deoxygenation of graphene, lasers have also been employed for the dehydrogenation and dehalogenation of graphene surfaces. Such laser induced bond dissociation paves the way for achieving the desired band gap in graphene by adequately controlling the extent of such surface bonds. Such photochemical transformations can be exploited for patterning and nanolithography of graphene and related materials. Laser exfoliation has successfully been extended to synthesize inorganic analogues of graphene such as 2D atomic sheets of hexagonal BN and metal dichalcogenides such as MoS2, MoSe2, WS2, WSe2etc. It is noteworthy that the emerging novel laser-based approaches have tremendously simplified the synthesis of 2D atomic sheets and are capable of yielding impurity-free device quality 2D materials in a scalable manner and consequently inspiring various commercial applications of such materials. An overview of the progress made into laser based approaches is presented.read more
Citations
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Journal ArticleDOI
In situ growth of NiCo2S4 nanosheets on graphene for high-performance supercapacitors
Shengjie Peng,Linlin Li,Chengchao Li,Huiteng Tan,Ren Cai,Hong Yu,Subodh Mhaisalkar,Madhavi Srinivasan,Seeram Ramakrishna,Qingyu Yan +9 more
TL;DR: This work demonstrates a facile hydrothermal method for growth of ultrathin NiCo2S4 nanosheets on reduced graphene oxide (RGO), which exhibit remarkable electrochemical performance with higher capacitance and longer cycle life than the bare NiCo 2S4 hollow spheres (HSs).
Journal ArticleDOI
Work function engineering of graphene
TL;DR: This article highlights the different ways of surface modification, which have been used to specifically modify the band gap of graphene and its work function, and gives some indication of future challenges and possibilities.
Journal ArticleDOI
Laser-assisted synthesis, reduction and micro-patterning of graphene: Recent progress and applications
Rajesh Kumar,Rajesh Kumar Singh,Dinesh Pratap Singh,Ednan Joanni,Ram Manohar Yadav,Stanislav A. Moshkalev +5 more
TL;DR: Laser-based approaches for graphene synthesis, reduction, modification, cutting and micro-patterning have been developed and applied to the fabrication of various electronic devices as discussed by the authors, such as micro-supercapacitors, flexible electrodes, field effect transistors, and sensors.
Journal ArticleDOI
Bioinspired Graphene Actuators Prepared by Unilateral UV Irradiation of Graphene Oxide Papers
Dong-Dong Han,Yong-Lai Zhang,Yan Liu,Yu-Qing Liu,Hao-Bo Jiang,Bing Han,Xiu-Yan Fu,Hong Ding,Huailiang Xu,Hong-Bo Sun +9 more
TL;DR: In this paper, a facile preparation of moisture responsive graphene-based smart actuators by unilateral UV irradiation of graphene oxide (GO) papers is reported, inspired by natural autonomous systems that demonstrate controllable shape, appearance, and actuation under external stimuli.
Journal ArticleDOI
Synthesis and utilisation of graphene for fabrication of electrochemical sensors.
TL;DR: Graphene promotes the different rapid electron transfers that facilitate accurate and selective detection of cytochrome-c, β-nicotinamide adenine dinucleotide, haemoglobin, biomolecules such as glucose, cholesterol, ascorbic acid, uric acid
References
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Journal ArticleDOI
Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
Journal ArticleDOI
The electronic properties of graphene
TL;DR: In this paper, the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations, are discussed.
Journal ArticleDOI
Measurement of the Elastic Properties and Intrinsic Strength of Monolayer Graphene
TL;DR: Graphene is established as the strongest material ever measured, and atomically perfect nanoscale materials can be mechanically tested to deformations well beyond the linear regime.
Journal ArticleDOI
Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide
Sasha Stankovich,Dmitriy A. Dikin,Richard D. Piner,Kevin A. Kohlhaas,Alfred Kleinhammes,Yuanyuan Jia,Yue Wu,SonBinh T. Nguyen,Rodney S. Ruoff +8 more
TL;DR: In this paper, a colloidal suspension of exfoliated graphene oxide sheets in water with hydrazine hydrate results in their aggregation and subsequent formation of a high surface area carbon material which consists of thin graphene-based sheets.
Journal ArticleDOI
Graphene: Status and Prospects
TL;DR: This review analyzes recent trends in graphene research and applications, and attempts to identify future directions in which the field is likely to develop.
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