Artificially stacked atomic layers: Toward new van der waals solids

Guanhui Gao, Wei Gao, E. Cannuccia, Jaime Taha-Tijerina, Luis Balicas, Akshay Mathkar, T. N. Narayanan, Zhen Liu, Bipin K. Gupta, Juan Peng, Yansheng Yin, Angel Rubio, Pulickel M. Ajayan

Research output: Contribution to journalArticle

161 Citations (Scopus)

Abstract

Strong in-plane bonding and weak van der Waals interplanar interactions characterize a large number of layered materials, as epitomized by graphite. The advent of graphene (G), individual layers from graphite, and atomic layers isolated from a few other van der Waals bonded layered compounds has enabled the ability to pick, place, and stack atomic layers of arbitrary compositions and build unique layered materials, which would be otherwise impossible to synthesize via other known techniques. Here we demonstrate this concept for solids consisting of randomly stacked layers of graphene and hexagonal boron nitride (h-BN). Dispersions of exfoliated h-BN layers and graphene have been prepared by liquid phase exfoliation methods and mixed, in various concentrations, to create artificially stacked h-BN/G solids. These van der Waals stacked hybrid solid materials show interesting electrical, mechanical, and optical properties distinctly different from their starting parent layers. From extensive first principle calculations we identify (i) a novel approach to control the dipole at the h-BN/G interface by properly sandwiching or sliding layers of h-BN and graphene, and (ii) a way to inject carriers in graphene upon UV excitations of the Frenkell-like excitons of the h-BN layer(s). Our combined approach could be used to create artificial materials, made predominantly from inter planar van der Waals stacking of robust bond saturated atomic layers of different solids with vastly different properties. © 2012 American Chemical Society.
Original languageEnglish
Pages (from-to)3518-3525
Number of pages8
JournalNano Letters
DOIs
Publication statusPublished - 11 Jul 2012
Externally publishedYes

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Boron nitride
Graphene
boron nitrides
graphene
graphite
Dispersions
Excitons
Electric properties
Optical properties
boron nitride
Mechanical properties
sliding
liquid phases
Liquids
Chemical analysis
electrical properties
excitons
mechanical properties
dipoles

Cite this

Gao, G., Gao, W., Cannuccia, E., Taha-Tijerina, J., Balicas, L., Mathkar, A., ... Ajayan, P. M. (2012). Artificially stacked atomic layers: Toward new van der waals solids. Nano Letters, 3518-3525. https://doi.org/10.1021/nl301061b
Gao, Guanhui ; Gao, Wei ; Cannuccia, E. ; Taha-Tijerina, Jaime ; Balicas, Luis ; Mathkar, Akshay ; Narayanan, T. N. ; Liu, Zhen ; Gupta, Bipin K. ; Peng, Juan ; Yin, Yansheng ; Rubio, Angel ; Ajayan, Pulickel M. / Artificially stacked atomic layers: Toward new van der waals solids. In: Nano Letters. 2012 ; pp. 3518-3525.
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Gao, G, Gao, W, Cannuccia, E, Taha-Tijerina, J, Balicas, L, Mathkar, A, Narayanan, TN, Liu, Z, Gupta, BK, Peng, J, Yin, Y, Rubio, A & Ajayan, PM 2012, 'Artificially stacked atomic layers: Toward new van der waals solids', Nano Letters, pp. 3518-3525. https://doi.org/10.1021/nl301061b

Artificially stacked atomic layers: Toward new van der waals solids. / Gao, Guanhui; Gao, Wei; Cannuccia, E.; Taha-Tijerina, Jaime; Balicas, Luis; Mathkar, Akshay; Narayanan, T. N.; Liu, Zhen; Gupta, Bipin K.; Peng, Juan; Yin, Yansheng; Rubio, Angel; Ajayan, Pulickel M.

In: Nano Letters, 11.07.2012, p. 3518-3525.

Research output: Contribution to journalArticle

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T1 - Artificially stacked atomic layers: Toward new van der waals solids

AU - Gao, Guanhui

AU - Gao, Wei

AU - Cannuccia, E.

AU - Taha-Tijerina, Jaime

AU - Balicas, Luis

AU - Mathkar, Akshay

AU - Narayanan, T. N.

AU - Liu, Zhen

AU - Gupta, Bipin K.

AU - Peng, Juan

AU - Yin, Yansheng

AU - Rubio, Angel

AU - Ajayan, Pulickel M.

PY - 2012/7/11

Y1 - 2012/7/11

N2 - Strong in-plane bonding and weak van der Waals interplanar interactions characterize a large number of layered materials, as epitomized by graphite. The advent of graphene (G), individual layers from graphite, and atomic layers isolated from a few other van der Waals bonded layered compounds has enabled the ability to pick, place, and stack atomic layers of arbitrary compositions and build unique layered materials, which would be otherwise impossible to synthesize via other known techniques. Here we demonstrate this concept for solids consisting of randomly stacked layers of graphene and hexagonal boron nitride (h-BN). Dispersions of exfoliated h-BN layers and graphene have been prepared by liquid phase exfoliation methods and mixed, in various concentrations, to create artificially stacked h-BN/G solids. These van der Waals stacked hybrid solid materials show interesting electrical, mechanical, and optical properties distinctly different from their starting parent layers. From extensive first principle calculations we identify (i) a novel approach to control the dipole at the h-BN/G interface by properly sandwiching or sliding layers of h-BN and graphene, and (ii) a way to inject carriers in graphene upon UV excitations of the Frenkell-like excitons of the h-BN layer(s). Our combined approach could be used to create artificial materials, made predominantly from inter planar van der Waals stacking of robust bond saturated atomic layers of different solids with vastly different properties. © 2012 American Chemical Society.

AB - Strong in-plane bonding and weak van der Waals interplanar interactions characterize a large number of layered materials, as epitomized by graphite. The advent of graphene (G), individual layers from graphite, and atomic layers isolated from a few other van der Waals bonded layered compounds has enabled the ability to pick, place, and stack atomic layers of arbitrary compositions and build unique layered materials, which would be otherwise impossible to synthesize via other known techniques. Here we demonstrate this concept for solids consisting of randomly stacked layers of graphene and hexagonal boron nitride (h-BN). Dispersions of exfoliated h-BN layers and graphene have been prepared by liquid phase exfoliation methods and mixed, in various concentrations, to create artificially stacked h-BN/G solids. These van der Waals stacked hybrid solid materials show interesting electrical, mechanical, and optical properties distinctly different from their starting parent layers. From extensive first principle calculations we identify (i) a novel approach to control the dipole at the h-BN/G interface by properly sandwiching or sliding layers of h-BN and graphene, and (ii) a way to inject carriers in graphene upon UV excitations of the Frenkell-like excitons of the h-BN layer(s). Our combined approach could be used to create artificial materials, made predominantly from inter planar van der Waals stacking of robust bond saturated atomic layers of different solids with vastly different properties. © 2012 American Chemical Society.

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DO - 10.1021/nl301061b

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EP - 3525

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

ER -