Hunting for Monolayer Boron Nitride: Optical and Raman Signatures

R. V. Gorbachev; I. Riaz; R. R. Nair; R. Jalil; L. Britnell; B. D. Belle; E. W. Hill; K. S. Novoselov; K. Watanabe; T. Taniguchi; A. K. Geim; P. Blake

doi:10.1002/smll.201001628

Hunting for Monolayer Boron Nitride: Optical and Raman Signatures

Mesoscale and Nanoscale Physics 2011-04-08 v1 Materials Science

Authors: R. V. Gorbachev , I. Riaz , R. R. Nair , R. Jalil , L. Britnell , B. D. Belle , E. W. Hill , K. S. Novoselov , K. Watanabe , T. Taniguchi , A. K. Geim , P. Blake

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Abstract

We describe the identification of single- and few- layer boron nitride. Its optical contrast is much smaller than that of graphene but even monolayers are discernable by optimizing viewing conditions. Raman spectroscopy can be used to confirm BN monolayers. They exhibit an upshift in the fundamental Raman mode by up to 4 cm-1. The number of layers in thicker crystals can be counted by exploiting an integer-step increase in the Raman intensity and optical contrast.

Keywords

boron nitride monolayer raman spectroscopy optical contrast two-dimensional materials layer identification

Cite

@article{arxiv.1008.2868,
  title  = {Hunting for Monolayer Boron Nitride: Optical and Raman Signatures},
  author = {R. V. Gorbachev and I. Riaz and R. R. Nair and R. Jalil and L. Britnell and B. D. Belle and E. W. Hill and K. S. Novoselov and K. Watanabe and T. Taniguchi and A. K. Geim and P. Blake},
  journal= {arXiv preprint arXiv:1008.2868},
  year   = {2011}
}

Hunting for Monolayer Boron Nitride: Optical and Raman Signatures

Abstract

Keywords

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