Highly conducting graphene sheets and Langmuir-Blodgett films.

By Xiaolin Li, Guangyu Zhang, X. Bai, Xiaoming Sun, Xinran Wang, E. Wang, Hongjie Dai. Nature Nanotechnology, 2008

1,938 citations recorded by the source corpus.

Graphene is an intriguing material with properties that are distinct from those of other graphitic systems. The first samples of pristine graphene were obtained by 'peeling off' and epitaxial growth. Recently, the chemical reduction of graphite oxide was used to produce covalently functionalized single-layer graphene oxide. However, chemical approaches for the large-scale production of highly conducting graphene sheets remain elusive. Here, we report that the exfoliation-reintercalation-expansion of graphite can produce high-quality single-layer graphene sheets stably suspended in organic solvents. The graphene sheets exhibit high electrical conductance at room and cryogenic temperatures. Large amounts of graphene sheets in organic solvents are made into large transparent conducting films by Langmuir-Blodgett assembly in a layer-by-layer manner. The chemically derived, high-quality graphene sheets could lead to future scalable graphene devices.

Subfields: Electrical and Electronic Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/565fda9515b44e7db5549ef0913861f814d634d6

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Citations in the corpus

Synthesis of graphene sheets with high electrical conductivity and good thermal stability by hydrogen arc discharge exfoliation. (2009, methodology): “1 nm as shown in Figure 4b,c, which are considered to correspond to single-layer GSs.(19,25,26,28) This can be further confirmed by the 2D band of GSs located at 2644 cm 1 (Figure 4d), which is consistent with that reported for the single-layer GSs prepared by micromechanical cleavage(38,39) and che”
Wetting transparency of graphene. (2012, neutral): “, which combined with its high electrical conductivit”
Continuous, highly flexible, and transparent graphene films by chemical vapor deposition for organic photovoltaics. (2010, background): “ter transparency/Rsheet ratio than the reduced graphene oxide films reported so far.(14,23,33,34) The transparency/ Rsheet ratio of CVD graphene can be further improved to yield films with 700 /sq and 90% transparency.”